/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_4.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 21:55:09,917 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 21:55:09,920 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 21:55:09,956 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-08-18 21:55:09,979 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 21:55:09,982 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 21:55:09,984 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 21:55:09,985 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 21:55:09,987 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 21:55:09,990 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 21:55:09,993 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 21:55:09,999 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 21:55:10,002 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 21:55:10,003 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 21:55:10,005 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 21:55:10,006 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 21:55:10,017 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-18 21:55:10,028 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 21:55:10,030 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 21:55:10,031 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 21:55:10,032 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-18 21:55:10,065 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 21:55:10,066 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 21:55:10,067 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 21:55:10,067 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 21:55:10,067 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 21:55:10,068 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 21:55:10,068 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 21:55:10,068 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 21:55:10,068 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 21:55:10,068 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 21:55:10,069 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 21:55:10,069 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 21:55:10,069 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 21:55:10,069 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 21:55:10,069 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 21:55:10,070 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 21:55:10,070 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 21:55:10,070 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 21:55:10,070 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 21:55:10,070 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 21:55:10,071 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 21:55:10,071 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 21:55:10,071 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 21:55:10,071 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 21:55:10,071 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 21:55:10,072 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 21:55:10,072 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 21:55:10,072 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 21:55:10,072 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 21:55:10,072 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=NARROWEST; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=NARROWEST; [2020-08-18 21:55:10,414 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 21:55:10,438 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 21:55:10,442 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 21:55:10,444 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 21:55:10,444 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 21:55:10,445 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_4.cil-2.c [2020-08-18 21:55:10,522 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ead41cfa5/6f2cddc6fd004702924fb57a86085f46/FLAGc738db63b [2020-08-18 21:55:11,083 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 21:55:11,084 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_clnt_4.cil-2.c [2020-08-18 21:55:11,101 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ead41cfa5/6f2cddc6fd004702924fb57a86085f46/FLAGc738db63b [2020-08-18 21:55:11,371 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ead41cfa5/6f2cddc6fd004702924fb57a86085f46 [2020-08-18 21:55:11,382 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 21:55:11,383 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 21:55:11,384 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 21:55:11,384 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 21:55:11,388 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 21:55:11,389 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 09:55:11" (1/1) ... [2020-08-18 21:55:11,392 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@108dd9b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:55:11, skipping insertion in model container [2020-08-18 21:55:11,392 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 09:55:11" (1/1) ... [2020-08-18 21:55:11,400 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 21:55:11,453 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 21:55:11,678 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 21:55:11,682 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 21:55:11,833 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 21:55:11,854 INFO L208 MainTranslator]: Completed translation [2020-08-18 21:55:11,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:55:11 WrapperNode [2020-08-18 21:55:11,857 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 21:55:11,858 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 21:55:11,858 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 21:55:11,858 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 21:55:11,872 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:55:11" (1/1) ... [2020-08-18 21:55:11,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:55:11" (1/1) ... [2020-08-18 21:55:11,882 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:55:11" (1/1) ... [2020-08-18 21:55:11,882 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:55:11" (1/1) ... [2020-08-18 21:55:11,894 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:55:11" (1/1) ... [2020-08-18 21:55:11,910 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:55:11" (1/1) ... [2020-08-18 21:55:11,913 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:55:11" (1/1) ... [2020-08-18 21:55:11,919 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 21:55:11,919 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 21:55:11,920 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 21:55:11,920 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 21:55:11,921 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:55:11" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 21:55:11,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 21:55:11,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 21:55:11,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2020-08-18 21:55:11,985 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 21:55:11,985 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 21:55:11,985 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-08-18 21:55:11,986 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 21:55:11,986 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-08-18 21:55:11,986 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2020-08-18 21:55:11,986 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 21:55:11,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 21:55:11,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 21:55:12,169 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-08-18 21:55:12,721 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-08-18 21:55:12,721 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-08-18 21:55:12,752 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 21:55:12,753 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-18 21:55:12,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 09:55:12 BoogieIcfgContainer [2020-08-18 21:55:12,761 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 21:55:12,765 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 21:55:12,765 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 21:55:12,769 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 21:55:12,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 09:55:11" (1/3) ... [2020-08-18 21:55:12,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@121a98b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 09:55:12, skipping insertion in model container [2020-08-18 21:55:12,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:55:11" (2/3) ... [2020-08-18 21:55:12,772 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@121a98b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 09:55:12, skipping insertion in model container [2020-08-18 21:55:12,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 09:55:12" (3/3) ... [2020-08-18 21:55:12,778 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt_4.cil-2.c [2020-08-18 21:55:12,791 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 21:55:12,807 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 21:55:12,824 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 21:55:12,864 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 21:55:12,864 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 21:55:12,865 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 21:55:12,865 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 21:55:12,865 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 21:55:12,866 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 21:55:12,866 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 21:55:12,866 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 21:55:12,898 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states. [2020-08-18 21:55:12,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-08-18 21:55:12,915 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:55:12,917 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 21:55:12,917 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:55:12,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:55:12,925 INFO L82 PathProgramCache]: Analyzing trace with hash 173387410, now seen corresponding path program 1 times [2020-08-18 21:55:12,935 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:55:12,935 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [602171766] [2020-08-18 21:55:12,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:55:13,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:55:13,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:55:13,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:55:13,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 21:55:13,369 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [602171766] [2020-08-18 21:55:13,372 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 21:55:13,372 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-18 21:55:13,373 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831037001] [2020-08-18 21:55:13,379 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 21:55:13,380 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:55:13,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 21:55:13,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-18 21:55:13,400 INFO L87 Difference]: Start difference. First operand 136 states. Second operand 5 states. [2020-08-18 21:55:13,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:55:13,698 INFO L93 Difference]: Finished difference Result 263 states and 438 transitions. [2020-08-18 21:55:13,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-18 21:55:13,700 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2020-08-18 21:55:13,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:55:13,714 INFO L225 Difference]: With dead ends: 263 [2020-08-18 21:55:13,714 INFO L226 Difference]: Without dead ends: 120 [2020-08-18 21:55:13,719 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-18 21:55:13,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-08-18 21:55:13,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2020-08-18 21:55:13,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-08-18 21:55:13,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 177 transitions. [2020-08-18 21:55:13,772 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 177 transitions. Word has length 29 [2020-08-18 21:55:13,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:55:13,773 INFO L479 AbstractCegarLoop]: Abstraction has 120 states and 177 transitions. [2020-08-18 21:55:13,773 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 21:55:13,773 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 177 transitions. [2020-08-18 21:55:13,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-08-18 21:55:13,775 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:55:13,775 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 21:55:13,776 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 21:55:13,776 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:55:13,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:55:13,776 INFO L82 PathProgramCache]: Analyzing trace with hash -1901611800, now seen corresponding path program 1 times [2020-08-18 21:55:13,777 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:55:13,777 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [291510180] [2020-08-18 21:55:13,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:55:13,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:55:13,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:55:13,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:55:13,888 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 21:55:13,888 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [291510180] [2020-08-18 21:55:13,889 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 21:55:13,890 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-18 21:55:13,890 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497766092] [2020-08-18 21:55:13,892 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-18 21:55:13,893 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:55:13,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-18 21:55:13,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-18 21:55:13,894 INFO L87 Difference]: Start difference. First operand 120 states and 177 transitions. Second operand 3 states. [2020-08-18 21:55:14,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:55:14,111 INFO L93 Difference]: Finished difference Result 243 states and 365 transitions. [2020-08-18 21:55:14,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-18 21:55:14,112 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 42 [2020-08-18 21:55:14,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:55:14,115 INFO L225 Difference]: With dead ends: 243 [2020-08-18 21:55:14,115 INFO L226 Difference]: Without dead ends: 138 [2020-08-18 21:55:14,118 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-18 21:55:14,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-08-18 21:55:14,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 135. [2020-08-18 21:55:14,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2020-08-18 21:55:14,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 197 transitions. [2020-08-18 21:55:14,150 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 197 transitions. Word has length 42 [2020-08-18 21:55:14,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:55:14,151 INFO L479 AbstractCegarLoop]: Abstraction has 135 states and 197 transitions. [2020-08-18 21:55:14,155 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-18 21:55:14,155 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 197 transitions. [2020-08-18 21:55:14,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-08-18 21:55:14,158 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:55:14,158 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 21:55:14,158 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 21:55:14,160 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:55:14,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:55:14,160 INFO L82 PathProgramCache]: Analyzing trace with hash 578664657, now seen corresponding path program 1 times [2020-08-18 21:55:14,161 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:55:14,161 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2075156341] [2020-08-18 21:55:14,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:55:14,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:55:14,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:55:14,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:55:14,325 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-18 21:55:14,326 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2075156341] [2020-08-18 21:55:14,326 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 21:55:14,327 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-18 21:55:14,327 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895195826] [2020-08-18 21:55:14,328 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-18 21:55:14,328 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:55:14,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-18 21:55:14,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-18 21:55:14,330 INFO L87 Difference]: Start difference. First operand 135 states and 197 transitions. Second operand 3 states. [2020-08-18 21:55:14,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:55:14,525 INFO L93 Difference]: Finished difference Result 276 states and 411 transitions. [2020-08-18 21:55:14,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-18 21:55:14,527 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 56 [2020-08-18 21:55:14,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:55:14,534 INFO L225 Difference]: With dead ends: 276 [2020-08-18 21:55:14,534 INFO L226 Difference]: Without dead ends: 156 [2020-08-18 21:55:14,535 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-18 21:55:14,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2020-08-18 21:55:14,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 152. [2020-08-18 21:55:14,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2020-08-18 21:55:14,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 219 transitions. [2020-08-18 21:55:14,565 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 219 transitions. Word has length 56 [2020-08-18 21:55:14,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:55:14,566 INFO L479 AbstractCegarLoop]: Abstraction has 152 states and 219 transitions. [2020-08-18 21:55:14,566 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-18 21:55:14,566 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 219 transitions. [2020-08-18 21:55:14,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-08-18 21:55:14,574 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:55:14,574 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 21:55:14,575 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 21:55:14,575 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:55:14,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:55:14,576 INFO L82 PathProgramCache]: Analyzing trace with hash -1321922521, now seen corresponding path program 1 times [2020-08-18 21:55:14,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:55:14,576 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [63502064] [2020-08-18 21:55:14,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:55:14,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:55:14,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:55:14,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:55:14,749 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-08-18 21:55:14,749 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [63502064] [2020-08-18 21:55:14,750 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 21:55:14,751 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-18 21:55:14,751 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128273560] [2020-08-18 21:55:14,752 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-18 21:55:14,752 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:55:14,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-18 21:55:14,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-18 21:55:14,753 INFO L87 Difference]: Start difference. First operand 152 states and 219 transitions. Second operand 3 states. [2020-08-18 21:55:14,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:55:14,994 INFO L93 Difference]: Finished difference Result 340 states and 508 transitions. [2020-08-18 21:55:14,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-18 21:55:14,995 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 73 [2020-08-18 21:55:14,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:55:14,999 INFO L225 Difference]: With dead ends: 340 [2020-08-18 21:55:15,000 INFO L226 Difference]: Without dead ends: 202 [2020-08-18 21:55:15,005 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-18 21:55:15,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-08-18 21:55:15,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 193. [2020-08-18 21:55:15,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2020-08-18 21:55:15,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 269 transitions. [2020-08-18 21:55:15,029 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 269 transitions. Word has length 73 [2020-08-18 21:55:15,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:55:15,032 INFO L479 AbstractCegarLoop]: Abstraction has 193 states and 269 transitions. [2020-08-18 21:55:15,032 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-18 21:55:15,033 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 269 transitions. [2020-08-18 21:55:15,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-08-18 21:55:15,034 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:55:15,035 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 21:55:15,037 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 21:55:15,037 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:55:15,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:55:15,037 INFO L82 PathProgramCache]: Analyzing trace with hash 1167606441, now seen corresponding path program 1 times [2020-08-18 21:55:15,038 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:55:15,038 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1027086424] [2020-08-18 21:55:15,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:55:15,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:55:15,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:55:15,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:55:15,107 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-08-18 21:55:15,108 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1027086424] [2020-08-18 21:55:15,108 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 21:55:15,108 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-18 21:55:15,108 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158684799] [2020-08-18 21:55:15,109 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-18 21:55:15,109 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:55:15,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-18 21:55:15,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-18 21:55:15,110 INFO L87 Difference]: Start difference. First operand 193 states and 269 transitions. Second operand 3 states. [2020-08-18 21:55:15,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:55:15,247 INFO L93 Difference]: Finished difference Result 396 states and 562 transitions. [2020-08-18 21:55:15,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-18 21:55:15,247 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 73 [2020-08-18 21:55:15,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:55:15,249 INFO L225 Difference]: With dead ends: 396 [2020-08-18 21:55:15,249 INFO L226 Difference]: Without dead ends: 218 [2020-08-18 21:55:15,250 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-18 21:55:15,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-08-18 21:55:15,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 212. [2020-08-18 21:55:15,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-08-18 21:55:15,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 293 transitions. [2020-08-18 21:55:15,274 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 293 transitions. Word has length 73 [2020-08-18 21:55:15,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:55:15,275 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 293 transitions. [2020-08-18 21:55:15,275 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-18 21:55:15,275 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 293 transitions. [2020-08-18 21:55:15,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-08-18 21:55:15,279 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:55:15,279 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 21:55:15,280 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 21:55:15,281 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:55:15,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:55:15,281 INFO L82 PathProgramCache]: Analyzing trace with hash -1996022152, now seen corresponding path program 1 times [2020-08-18 21:55:15,282 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:55:15,284 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [557890481] [2020-08-18 21:55:15,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:55:15,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:55:15,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:55:15,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:55:15,394 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-08-18 21:55:15,394 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [557890481] [2020-08-18 21:55:15,395 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 21:55:15,396 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-18 21:55:15,396 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125315174] [2020-08-18 21:55:15,397 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-18 21:55:15,397 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:55:15,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-18 21:55:15,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-18 21:55:15,402 INFO L87 Difference]: Start difference. First operand 212 states and 293 transitions. Second operand 3 states. [2020-08-18 21:55:15,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:55:15,559 INFO L93 Difference]: Finished difference Result 433 states and 609 transitions. [2020-08-18 21:55:15,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-18 21:55:15,560 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 90 [2020-08-18 21:55:15,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:55:15,562 INFO L225 Difference]: With dead ends: 433 [2020-08-18 21:55:15,563 INFO L226 Difference]: Without dead ends: 236 [2020-08-18 21:55:15,564 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-18 21:55:15,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-08-18 21:55:15,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 233. [2020-08-18 21:55:15,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-08-18 21:55:15,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 319 transitions. [2020-08-18 21:55:15,574 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 319 transitions. Word has length 90 [2020-08-18 21:55:15,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:55:15,575 INFO L479 AbstractCegarLoop]: Abstraction has 233 states and 319 transitions. [2020-08-18 21:55:15,575 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-18 21:55:15,575 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 319 transitions. [2020-08-18 21:55:15,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-08-18 21:55:15,577 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:55:15,577 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 21:55:15,577 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-18 21:55:15,577 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:55:15,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:55:15,578 INFO L82 PathProgramCache]: Analyzing trace with hash 1747187888, now seen corresponding path program 1 times [2020-08-18 21:55:15,578 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:55:15,578 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [553770758] [2020-08-18 21:55:15,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:55:15,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:55:15,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:55:15,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:55:15,651 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-08-18 21:55:15,652 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [553770758] [2020-08-18 21:55:15,652 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 21:55:15,652 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-18 21:55:15,652 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915630460] [2020-08-18 21:55:15,653 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-18 21:55:15,653 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:55:15,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-18 21:55:15,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-18 21:55:15,654 INFO L87 Difference]: Start difference. First operand 233 states and 319 transitions. Second operand 3 states. [2020-08-18 21:55:15,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:55:15,699 INFO L93 Difference]: Finished difference Result 667 states and 918 transitions. [2020-08-18 21:55:15,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-18 21:55:15,699 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 110 [2020-08-18 21:55:15,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:55:15,703 INFO L225 Difference]: With dead ends: 667 [2020-08-18 21:55:15,703 INFO L226 Difference]: Without dead ends: 449 [2020-08-18 21:55:15,704 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-18 21:55:15,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2020-08-18 21:55:15,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 449. [2020-08-18 21:55:15,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 449 states. [2020-08-18 21:55:15,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 615 transitions. [2020-08-18 21:55:15,724 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 615 transitions. Word has length 110 [2020-08-18 21:55:15,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:55:15,724 INFO L479 AbstractCegarLoop]: Abstraction has 449 states and 615 transitions. [2020-08-18 21:55:15,725 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-18 21:55:15,725 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 615 transitions. [2020-08-18 21:55:15,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-08-18 21:55:15,727 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:55:15,727 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 21:55:15,727 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-18 21:55:15,727 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:55:15,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:55:15,728 INFO L82 PathProgramCache]: Analyzing trace with hash 494924287, now seen corresponding path program 1 times [2020-08-18 21:55:15,728 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:55:15,728 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [25315957] [2020-08-18 21:55:15,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:55:15,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-18 21:55:15,773 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-18 21:55:15,773 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-18 21:55:15,779 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-18 21:55:15,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 09:55:15 BoogieIcfgContainer [2020-08-18 21:55:15,812 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-18 21:55:15,815 INFO L168 Benchmark]: Toolchain (without parser) took 4431.05 ms. Allocated memory was 140.0 MB in the beginning and 247.5 MB in the end (delta: 107.5 MB). Free memory was 101.9 MB in the beginning and 173.9 MB in the end (delta: -72.0 MB). Peak memory consumption was 35.5 MB. Max. memory is 7.1 GB. [2020-08-18 21:55:15,816 INFO L168 Benchmark]: CDTParser took 0.62 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.1 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. [2020-08-18 21:55:15,817 INFO L168 Benchmark]: CACSL2BoogieTranslator took 473.26 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 101.9 MB in the beginning and 177.9 MB in the end (delta: -76.1 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. [2020-08-18 21:55:15,818 INFO L168 Benchmark]: Boogie Preprocessor took 61.39 ms. Allocated memory is still 202.9 MB. Free memory was 177.9 MB in the beginning and 175.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2020-08-18 21:55:15,818 INFO L168 Benchmark]: RCFGBuilder took 842.10 ms. Allocated memory is still 202.9 MB. Free memory was 175.0 MB in the beginning and 127.8 MB in the end (delta: 47.2 MB). Peak memory consumption was 47.2 MB. Max. memory is 7.1 GB. [2020-08-18 21:55:15,819 INFO L168 Benchmark]: TraceAbstraction took 3047.49 ms. Allocated memory was 202.9 MB in the beginning and 247.5 MB in the end (delta: 44.6 MB). Free memory was 127.8 MB in the beginning and 173.9 MB in the end (delta: -46.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-18 21:55:15,823 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.62 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.1 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 473.26 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 101.9 MB in the beginning and 177.9 MB in the end (delta: -76.1 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 61.39 ms. Allocated memory is still 202.9 MB. Free memory was 177.9 MB in the beginning and 175.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 842.10 ms. Allocated memory is still 202.9 MB. Free memory was 175.0 MB in the beginning and 127.8 MB in the end (delta: 47.2 MB). Peak memory consumption was 47.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3047.49 ms. Allocated memory was 202.9 MB in the beginning and 247.5 MB in the end (delta: 44.6 MB). Free memory was 127.8 MB in the beginning and 173.9 MB in the end (delta: -46.1 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 548]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L553] int s ; [L557] s = 12292 [L558] CALL ssl3_connect(s) [L11] int s__info_callback = __VERIFIER_nondet_int() ; [L12] int s__in_handshake = __VERIFIER_nondet_int() ; [L13] int s__state ; [L14] int s__new_session ; [L15] int s__server ; [L16] int s__version = __VERIFIER_nondet_int() ; [L17] int s__type ; [L18] int s__init_num ; [L19] int s__bbio = __VERIFIER_nondet_int() ; [L20] int s__wbio = __VERIFIER_nondet_int() ; [L21] int s__hit = __VERIFIER_nondet_int() ; [L22] int s__rwstate ; [L23] int s__init_buf___0 = __VERIFIER_nondet_int() ; [L24] int s__debug = __VERIFIER_nondet_int() ; [L25] int s__shutdown ; [L26] int s__ctx__info_callback = __VERIFIER_nondet_int() ; [L27] int s__ctx__stats__sess_connect_renegotiate = __VERIFIER_nondet_int() ; [L28] int s__ctx__stats__sess_connect = __VERIFIER_nondet_int() ; [L29] int s__ctx__stats__sess_hit = __VERIFIER_nondet_int() ; [L30] int s__ctx__stats__sess_connect_good = __VERIFIER_nondet_int() ; [L31] int s__s3__change_cipher_spec ; [L32] int s__s3__flags = __VERIFIER_nondet_int() ; [L33] int s__s3__delay_buf_pop_ret ; [L34] int s__s3__tmp__cert_req = __VERIFIER_nondet_int() ; [L35] int s__s3__tmp__new_compression = __VERIFIER_nondet_int() ; [L36] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int() ; [L37] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int() ; [L38] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() ; [L39] int s__s3__tmp__next_state___0 ; [L40] int s__s3__tmp__new_compression__id = __VERIFIER_nondet_int() ; [L41] int s__session__cipher ; [L42] int s__session__compress_meth ; [L43] int buf ; [L44] unsigned long tmp ; [L45] unsigned long l ; [L46] int num1 = __VERIFIER_nondet_int() ; [L47] int cb ; [L48] int ret ; [L49] int new_state ; [L50] int state ; [L51] int skip ; [L52] int tmp___0 ; [L53] int tmp___1 = __VERIFIER_nondet_int() ; [L54] int tmp___2 = __VERIFIER_nondet_int() ; [L55] int tmp___3 = __VERIFIER_nondet_int() ; [L56] int tmp___4 = __VERIFIER_nondet_int() ; [L57] int tmp___5 = __VERIFIER_nondet_int() ; [L58] int tmp___6 = __VERIFIER_nondet_int() ; [L59] int tmp___7 = __VERIFIER_nondet_int() ; [L60] int tmp___8 = __VERIFIER_nondet_int() ; [L61] int tmp___9 = __VERIFIER_nondet_int() ; [L62] int blastFlag ; [L63] int __cil_tmp55 ; [L64] unsigned long __cil_tmp56 ; [L65] long __cil_tmp57 ; [L66] long __cil_tmp58 ; [L67] long __cil_tmp59 ; [L68] long __cil_tmp60 ; [L69] long __cil_tmp61 ; [L70] long __cil_tmp62 ; [L71] long __cil_tmp63 ; [L72] long __cil_tmp64 ; [L73] long __cil_tmp65 ; [L77] s__state = initial_state [L78] blastFlag = 0 [L79] tmp = __VERIFIER_nondet_int() [L80] cb = 0 [L81] ret = -1 [L82] skip = 0 [L83] tmp___0 = 0 [L84] COND TRUE s__info_callback != 0 [L85] cb = s__info_callback [L91] s__in_handshake ++ [L92] COND FALSE !(tmp___1 + 12288) [L98] COND TRUE 1 [L100] state = s__state [L101] COND TRUE s__state == 12292 [L203] s__new_session = 1 [L204] s__state = 4096 [L205] s__ctx__stats__sess_connect_renegotiate ++ [L210] s__server = 0 [L211] COND TRUE cb != 0 [L215] __cil_tmp55 = s__version + 65280 [L216] COND FALSE !(__cil_tmp55 != 768) [L221] s__type = 4096 [L222] COND FALSE !(s__init_buf___0 == 0) [L234] COND FALSE !(! tmp___4) [L238] COND FALSE !(! tmp___5) [L242] s__state = 4368 [L243] s__ctx__stats__sess_connect ++ [L244] s__init_num = 0 [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND TRUE s__state == 4368 [L248] s__shutdown = 0 [L249] ret = __VERIFIER_nondet_int() [L250] COND TRUE blastFlag == 0 [L251] blastFlag = 1 [L253] COND FALSE !(ret <= 0) [L256] s__state = 4384 [L257] s__init_num = 0 [L258] COND TRUE s__bbio != s__wbio [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND FALSE !(s__state == 4368) [L119] COND FALSE !(s__state == 4369) [L122] COND TRUE s__state == 4384 [L264] ret = __VERIFIER_nondet_int() [L265] COND TRUE blastFlag == 1 [L266] blastFlag = 2 [L268] COND FALSE !(ret <= 0) [L271] COND FALSE !(\read(s__hit)) [L274] s__state = 4400 [L276] s__init_num = 0 [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND FALSE !(s__state == 4368) [L119] COND FALSE !(s__state == 4369) [L122] COND FALSE !(s__state == 4384) [L125] COND FALSE !(s__state == 4385) [L128] COND TRUE s__state == 4400 [L281] __cil_tmp56 = (unsigned long )s__s3__tmp__new_cipher__algorithms [L282] COND FALSE !(__cil_tmp56 + 256UL) [L285] ret = __VERIFIER_nondet_int() [L286] COND TRUE blastFlag == 2 [L287] blastFlag = 3 [L293] COND FALSE !(ret <= 0) [L298] s__state = 4416 [L299] s__init_num = 0 [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND FALSE !(s__state == 4368) [L119] COND FALSE !(s__state == 4369) [L122] COND FALSE !(s__state == 4384) [L125] COND FALSE !(s__state == 4385) [L128] COND FALSE !(s__state == 4400) [L131] COND FALSE !(s__state == 4401) [L134] COND TRUE s__state == 4416 [L303] ret = __VERIFIER_nondet_int() [L304] COND TRUE blastFlag == 3 [L305] blastFlag = 4 [L307] COND FALSE !(ret <= 0) [L310] s__state = 4432 [L311] s__init_num = 0 [L312] COND FALSE !(! tmp___6) [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND FALSE !(s__state == 4368) [L119] COND FALSE !(s__state == 4369) [L122] COND FALSE !(s__state == 4384) [L125] COND FALSE !(s__state == 4385) [L128] COND FALSE !(s__state == 4400) [L131] COND FALSE !(s__state == 4401) [L134] COND FALSE !(s__state == 4416) [L137] COND FALSE !(s__state == 4417) [L140] COND TRUE s__state == 4432 [L319] ret = __VERIFIER_nondet_int() [L320] COND TRUE blastFlag == 4 [L548] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 136 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.9s, OverallIterations: 8, TraceHistogramMax: 6, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1269 SDtfs, 460 SDslu, 927 SDs, 0 SdLazy, 625 SolverSat, 78 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=449occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 25 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 585 NumberOfCodeBlocks, 585 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 466 ConstructedInterpolants, 0 QuantifiedInterpolants, 55282 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 316/316 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...