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bump CBMC dependency to release 6.8.0 #1364

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bump CBMC dependency to release 6.8.0 #1364

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2 changes: 1 addition & 1 deletion lib/cbmc
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Submodule cbmc updated 1342 files
3 changes: 1 addition & 2 deletions regression/ebmc/elbtunnel/test.desc
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
CORE broken-smt-backend
CORE
elbtunnel.aig.smv
--bound 12
^EXIT=10$
Expand All @@ -14,4 +14,3 @@ elbtunnel.aig.smv
--
^warning: ignoring
--
The test fails in MacOS CI with Z3.
2 changes: 1 addition & 1 deletion regression/smv/expressions/smv_toint1.desc
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
KNOWNBUG
CORE broken-smt-backend
smv_toint1.smv

^\[.*\] toint\(0\) = 0: PROVED .*$
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2 changes: 1 addition & 1 deletion regression/verilog/expressions/inside1.desc
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
CORE broken-smt-backend
CORE
inside1.sv

^\[.*\] always 2 inside \{1, 2, 3\}: PROVED .*$
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3 changes: 1 addition & 2 deletions regression/verilog/expressions/signing_cast1.desc
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
CORE broken-smt-backend
CORE
signing_cast1.sv
--module main
^\[main\.p0\] always signed'\(1'b1\) == -1: PROVED .*$
Expand All @@ -12,4 +12,3 @@ signing_cast1.sv
--
^warning: ignoring
--
The width of the operand is not preserved.
1 change: 1 addition & 0 deletions src/ebmc/ebmc_solver_factory.cpp
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Expand Up @@ -124,6 +124,7 @@ ebmc_solver_factoryt ebmc_solver_factory(const cmdlinet &cmdline)
std::string("Generated by EBMC ") + EBMC_VERSION,
"QF_AUFBV",
smt2_solver.value(),
"", // solver binary
message_handler)};
}
};
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36 changes: 1 addition & 35 deletions src/trans-netlist/unwind_netlist.cpp
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Expand Up @@ -21,40 +21,6 @@ Author: Daniel Kroening, kroening@kroening.com

/*******************************************************************\

Function: cnf_gate_and

Inputs:

Outputs:

Purpose:

\*******************************************************************/

// This is a copy of cnft::gate_and, which is protected.
inline void cnf_gate_and(cnft &cnf, literalt a, literalt b, literalt o)
{
// a*b=c <==> (a + o')( b + o')(a'+b'+o)
bvt lits(2);

lits[0] = pos(a);
lits[1] = neg(o);
cnf.lcnf(lits);

lits[0] = pos(b);
lits[1] = neg(o);
cnf.lcnf(lits);

lits.clear();
lits.reserve(3);
lits.push_back(neg(a));
lits.push_back(neg(b));
lits.push_back(pos(o));
cnf.lcnf(lits);
}

/*******************************************************************\

Function: unwind

Inputs:
Expand Down Expand Up @@ -102,7 +68,7 @@ void unwind(
literalt la=bmc_map.translate(t, node.a);
literalt lb=bmc_map.translate(t, node.b);

cnf_gate_and(solver, la, lb, timeframe[n].solver_literal);
solver.gate_and(la, lb, timeframe[n].solver_literal);
}
}

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