/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.positions.where.we.compute.the.hoare.annotation All --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows ASSERTandASSUME -i ../../../trunk/examples/svcomp/goblint-regression/04-mutex_07-ps_nr.i -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.empire2-owicki-f61efc6-m [2025-03-15 01:53:53,484 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-15 01:53:53,530 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2025-03-15 01:53:53,583 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-15 01:53:53,585 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-15 01:53:53,585 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-15 01:53:53,586 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-15 01:53:53,586 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-15 01:53:53,586 INFO L153 SettingsManager]: * Use SBE=true [2025-03-15 01:53:53,586 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-15 01:53:53,586 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-15 01:53:53,587 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-15 01:53:53,587 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-15 01:53:53,587 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-15 01:53:53,587 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-15 01:53:53,587 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-15 01:53:53,587 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-15 01:53:53,587 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-15 01:53:53,587 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-15 01:53:53,587 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-15 01:53:53,587 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-15 01:53:53,588 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-03-15 01:53:53,588 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-15 01:53:53,588 INFO L153 SettingsManager]: * To the following directory=./dump/ [2025-03-15 01:53:53,588 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-15 01:53:53,588 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-15 01:53:53,588 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-15 01:53:53,588 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-15 01:53:53,588 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-15 01:53:53,588 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-15 01:53:53,589 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-15 01:53:53,589 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-15 01:53:53,589 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> ASSERTandASSUME [2025-03-15 01:53:53,847 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-15 01:53:53,852 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-15 01:53:53,854 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-15 01:53:53,855 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-15 01:53:53,855 INFO L274 PluginConnector]: CDTParser initialized [2025-03-15 01:53:53,856 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_07-ps_nr.i [2025-03-15 01:53:55,057 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9d4118fa/61ffb70cd6914280ac8a529cf788b175/FLAG9f9efae49 [2025-03-15 01:53:55,308 INFO L384 CDTParser]: Found 1 translation units. [2025-03-15 01:53:55,308 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_07-ps_nr.i [2025-03-15 01:53:55,323 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9d4118fa/61ffb70cd6914280ac8a529cf788b175/FLAG9f9efae49 [2025-03-15 01:53:55,340 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9d4118fa/61ffb70cd6914280ac8a529cf788b175 [2025-03-15 01:53:55,342 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-15 01:53:55,343 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-03-15 01:53:55,346 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-15 01:53:55,346 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-15 01:53:55,350 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-15 01:53:55,350 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 01:53:55" (1/1) ... [2025-03-15 01:53:55,351 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76ddbd1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:53:55, skipping insertion in model container [2025-03-15 01:53:55,351 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 01:53:55" (1/1) ... [2025-03-15 01:53:55,378 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-15 01:53:55,627 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-15 01:53:55,638 INFO L200 MainTranslator]: Completed pre-run [2025-03-15 01:53:55,669 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-15 01:53:55,727 INFO L204 MainTranslator]: Completed translation [2025-03-15 01:53:55,727 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:53:55 WrapperNode [2025-03-15 01:53:55,727 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-15 01:53:55,728 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-15 01:53:55,728 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-15 01:53:55,728 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-15 01:53:55,732 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:53:55" (1/1) ... [2025-03-15 01:53:55,743 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:53:55" (1/1) ... [2025-03-15 01:53:55,762 INFO L138 Inliner]: procedures = 266, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 42 [2025-03-15 01:53:55,762 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-15 01:53:55,763 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-15 01:53:55,763 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-15 01:53:55,763 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-15 01:53:55,768 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:53:55" (1/1) ... [2025-03-15 01:53:55,769 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:53:55" (1/1) ... [2025-03-15 01:53:55,772 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:53:55" (1/1) ... [2025-03-15 01:53:55,772 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:53:55" (1/1) ... [2025-03-15 01:53:55,777 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:53:55" (1/1) ... [2025-03-15 01:53:55,778 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:53:55" (1/1) ... [2025-03-15 01:53:55,783 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:53:55" (1/1) ... [2025-03-15 01:53:55,784 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:53:55" (1/1) ... [2025-03-15 01:53:55,785 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:53:55" (1/1) ... [2025-03-15 01:53:55,786 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-15 01:53:55,786 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-03-15 01:53:55,788 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-03-15 01:53:55,788 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-03-15 01:53:55,790 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:53:55" (1/1) ... [2025-03-15 01:53:55,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-15 01:53:55,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 01:53:55,821 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2025-03-15 01:53:55,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2025-03-15 01:53:55,842 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-15 01:53:55,842 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-15 01:53:55,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-15 01:53:55,842 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-03-15 01:53:55,842 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-03-15 01:53:55,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-15 01:53:55,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-15 01:53:55,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-15 01:53:55,843 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-15 01:53:55,926 INFO L234 CfgBuilder]: Building ICFG [2025-03-15 01:53:55,928 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-15 01:53:56,010 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-15 01:53:56,010 INFO L283 CfgBuilder]: Performing block encoding [2025-03-15 01:53:56,022 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-15 01:53:56,022 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-15 01:53:56,023 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 01:53:56 BoogieIcfgContainer [2025-03-15 01:53:56,023 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-03-15 01:53:56,024 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-15 01:53:56,024 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-15 01:53:56,028 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-15 01:53:56,028 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 01:53:55" (1/3) ... [2025-03-15 01:53:56,029 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a968520 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 01:53:56, skipping insertion in model container [2025-03-15 01:53:56,029 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:53:55" (2/3) ... [2025-03-15 01:53:56,029 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a968520 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 01:53:56, skipping insertion in model container [2025-03-15 01:53:56,029 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 01:53:56" (3/3) ... [2025-03-15 01:53:56,030 INFO L128 eAbstractionObserver]: Analyzing ICFG 04-mutex_07-ps_nr.i [2025-03-15 01:53:56,040 INFO L303 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-15 01:53:56,041 INFO L169 ceAbstractionStarter]: Applying trace abstraction to ICFG 04-mutex_07-ps_nr.i that has 2 procedures, 60 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2025-03-15 01:53:56,042 INFO L581 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-15 01:53:56,078 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-15 01:53:56,108 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-15 01:53:56,119 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1a70b36a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-15 01:53:56,120 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2025-03-15 01:53:56,139 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-15 01:53:56,140 INFO L124 PetriNetUnfolderBase]: 0/29 cut-off events. [2025-03-15 01:53:56,141 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-15 01:53:56,141 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 01:53:56,142 INFO L221 CegarLoopForPetriNet]: 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] [2025-03-15 01:53:56,142 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-15 01:53:56,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 01:53:56,146 INFO L85 PathProgramCache]: Analyzing trace with hash 596797957, now seen corresponding path program 1 times [2025-03-15 01:53:56,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 01:53:56,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767394325] [2025-03-15 01:53:56,151 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 01:53:56,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 01:53:56,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 01:53:56,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 01:53:56,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 01:53:56,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767394325] [2025-03-15 01:53:56,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767394325] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 01:53:56,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 01:53:56,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-15 01:53:56,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839383065] [2025-03-15 01:53:56,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 01:53:56,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-15 01:53:56,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 01:53:56,422 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-15 01:53:56,422 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-15 01:53:56,424 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 62 [2025-03-15 01:53:56,427 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 62 transitions, 128 flow. Second operand has 4 states, 4 states have (on average 48.25) internal successors, (193), 4 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:53:56,427 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 01:53:56,427 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 62 [2025-03-15 01:53:56,428 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 01:53:56,547 INFO L124 PetriNetUnfolderBase]: 59/250 cut-off events. [2025-03-15 01:53:56,547 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-15 01:53:56,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 362 conditions, 250 events. 59/250 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1268 event pairs, 12 based on Foata normal form. 0/206 useless extension candidates. Maximal degree in co-relation 334. Up to 49 conditions per place. [2025-03-15 01:53:56,555 INFO L140 encePairwiseOnDemand]: 55/62 looper letters, 19 selfloop transitions, 5 changer transitions 12/82 dead transitions. [2025-03-15 01:53:56,556 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 82 transitions, 239 flow [2025-03-15 01:53:56,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-15 01:53:56,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-15 01:53:56,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 275 transitions. [2025-03-15 01:53:56,567 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8870967741935484 [2025-03-15 01:53:56,571 INFO L298 CegarLoopForPetriNet]: 63 programPoint places, 3 predicate places. [2025-03-15 01:53:56,571 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 82 transitions, 239 flow [2025-03-15 01:53:56,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.25) internal successors, (193), 4 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:53:56,572 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 01:53:56,572 INFO L221 CegarLoopForPetriNet]: 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, 1, 1] [2025-03-15 01:53:56,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-15 01:53:56,572 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-15 01:53:56,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 01:53:56,573 INFO L85 PathProgramCache]: Analyzing trace with hash 2066564807, now seen corresponding path program 1 times [2025-03-15 01:53:56,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 01:53:56,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478080195] [2025-03-15 01:53:56,573 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 01:53:56,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 01:53:56,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 01:53:56,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 01:53:56,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 01:53:56,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478080195] [2025-03-15 01:53:56,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478080195] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 01:53:56,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 01:53:56,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-15 01:53:56,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80094595] [2025-03-15 01:53:56,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 01:53:56,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-15 01:53:56,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 01:53:56,628 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-15 01:53:56,628 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-15 01:53:56,629 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 62 [2025-03-15 01:53:56,629 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 82 transitions, 239 flow. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:53:56,630 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 01:53:56,630 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 62 [2025-03-15 01:53:56,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 01:53:56,705 INFO L124 PetriNetUnfolderBase]: 64/287 cut-off events. [2025-03-15 01:53:56,705 INFO L125 PetriNetUnfolderBase]: For 27/33 co-relation queries the response was YES. [2025-03-15 01:53:56,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 508 conditions, 287 events. 64/287 cut-off events. For 27/33 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1401 event pairs, 16 based on Foata normal form. 3/262 useless extension candidates. Maximal degree in co-relation 476. Up to 75 conditions per place. [2025-03-15 01:53:56,709 INFO L140 encePairwiseOnDemand]: 56/62 looper letters, 16 selfloop transitions, 2 changer transitions 13/86 dead transitions. [2025-03-15 01:53:56,709 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 86 transitions, 299 flow [2025-03-15 01:53:56,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-15 01:53:56,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-15 01:53:56,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 165 transitions. [2025-03-15 01:53:56,713 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8870967741935484 [2025-03-15 01:53:56,714 INFO L298 CegarLoopForPetriNet]: 63 programPoint places, 5 predicate places. [2025-03-15 01:53:56,714 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 86 transitions, 299 flow [2025-03-15 01:53:56,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:53:56,714 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 01:53:56,714 INFO L221 CegarLoopForPetriNet]: 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, 1, 1, 1] [2025-03-15 01:53:56,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-15 01:53:56,715 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-15 01:53:56,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 01:53:56,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1002060108, now seen corresponding path program 1 times [2025-03-15 01:53:56,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 01:53:56,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367874135] [2025-03-15 01:53:56,715 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 01:53:56,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 01:53:56,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 01:53:56,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 01:53:56,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 01:53:56,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367874135] [2025-03-15 01:53:56,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367874135] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 01:53:56,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 01:53:56,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-15 01:53:56,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852351593] [2025-03-15 01:53:56,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 01:53:56,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-15 01:53:56,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 01:53:56,828 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-15 01:53:56,828 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-15 01:53:56,828 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 62 [2025-03-15 01:53:56,829 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 86 transitions, 299 flow. Second operand has 4 states, 4 states have (on average 47.5) internal successors, (190), 4 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:53:56,829 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 01:53:56,829 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 62 [2025-03-15 01:53:56,829 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 01:53:56,909 INFO L124 PetriNetUnfolderBase]: 94/375 cut-off events. [2025-03-15 01:53:56,909 INFO L125 PetriNetUnfolderBase]: For 166/188 co-relation queries the response was YES. [2025-03-15 01:53:56,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 819 conditions, 375 events. 94/375 cut-off events. For 166/188 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2019 event pairs, 26 based on Foata normal form. 2/338 useless extension candidates. Maximal degree in co-relation 783. Up to 105 conditions per place. [2025-03-15 01:53:56,911 INFO L140 encePairwiseOnDemand]: 55/62 looper letters, 23 selfloop transitions, 6 changer transitions 32/106 dead transitions. [2025-03-15 01:53:56,911 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 106 transitions, 491 flow [2025-03-15 01:53:56,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-15 01:53:56,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-15 01:53:56,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 271 transitions. [2025-03-15 01:53:56,913 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8741935483870967 [2025-03-15 01:53:56,913 INFO L298 CegarLoopForPetriNet]: 63 programPoint places, 9 predicate places. [2025-03-15 01:53:56,913 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 106 transitions, 491 flow [2025-03-15 01:53:56,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 4 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:53:56,913 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 01:53:56,914 INFO L221 CegarLoopForPetriNet]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 01:53:56,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-15 01:53:56,914 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-15 01:53:56,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 01:53:56,914 INFO L85 PathProgramCache]: Analyzing trace with hash 64558538, now seen corresponding path program 1 times [2025-03-15 01:53:56,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 01:53:56,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732763803] [2025-03-15 01:53:56,914 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 01:53:56,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 01:53:56,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 01:53:56,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 01:53:56,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 01:53:56,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732763803] [2025-03-15 01:53:56,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732763803] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 01:53:56,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 01:53:56,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-15 01:53:56,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462204754] [2025-03-15 01:53:56,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 01:53:56,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-15 01:53:56,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 01:53:56,977 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-15 01:53:56,977 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-15 01:53:56,978 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 62 [2025-03-15 01:53:56,978 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 106 transitions, 491 flow. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:53:56,978 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 01:53:56,978 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 62 [2025-03-15 01:53:56,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 01:53:57,007 INFO L124 PetriNetUnfolderBase]: 19/180 cut-off events. [2025-03-15 01:53:57,007 INFO L125 PetriNetUnfolderBase]: For 188/195 co-relation queries the response was YES. [2025-03-15 01:53:57,008 INFO L83 FinitePrefix]: Finished finitePrefix Result has 381 conditions, 180 events. 19/180 cut-off events. For 188/195 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 692 event pairs, 4 based on Foata normal form. 18/184 useless extension candidates. Maximal degree in co-relation 337. Up to 39 conditions per place. [2025-03-15 01:53:57,008 INFO L140 encePairwiseOnDemand]: 58/62 looper letters, 7 selfloop transitions, 7 changer transitions 19/85 dead transitions. [2025-03-15 01:53:57,008 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 85 transitions, 395 flow [2025-03-15 01:53:57,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-15 01:53:57,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-15 01:53:57,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 166 transitions. [2025-03-15 01:53:57,009 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8924731182795699 [2025-03-15 01:53:57,010 INFO L298 CegarLoopForPetriNet]: 63 programPoint places, 11 predicate places. [2025-03-15 01:53:57,010 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 85 transitions, 395 flow [2025-03-15 01:53:57,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:53:57,010 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 01:53:57,010 INFO L221 CegarLoopForPetriNet]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 01:53:57,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-15 01:53:57,010 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-15 01:53:57,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 01:53:57,011 INFO L85 PathProgramCache]: Analyzing trace with hash 65634705, now seen corresponding path program 1 times [2025-03-15 01:53:57,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 01:53:57,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084918655] [2025-03-15 01:53:57,011 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 01:53:57,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 01:53:57,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 01:53:57,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 01:53:57,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 01:53:57,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084918655] [2025-03-15 01:53:57,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084918655] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 01:53:57,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 01:53:57,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-15 01:53:57,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838298694] [2025-03-15 01:53:57,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 01:53:57,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-15 01:53:57,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 01:53:57,111 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-15 01:53:57,111 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-15 01:53:57,112 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 62 [2025-03-15 01:53:57,112 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 85 transitions, 395 flow. Second operand has 6 states, 6 states have (on average 43.166666666666664) internal successors, (259), 6 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:53:57,112 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 01:53:57,112 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 62 [2025-03-15 01:53:57,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 01:53:57,216 INFO L124 PetriNetUnfolderBase]: 26/195 cut-off events. [2025-03-15 01:53:57,216 INFO L125 PetriNetUnfolderBase]: For 230/256 co-relation queries the response was YES. [2025-03-15 01:53:57,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 503 conditions, 195 events. 26/195 cut-off events. For 230/256 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 800 event pairs, 10 based on Foata normal form. 10/189 useless extension candidates. Maximal degree in co-relation 455. Up to 48 conditions per place. [2025-03-15 01:53:57,217 INFO L140 encePairwiseOnDemand]: 54/62 looper letters, 22 selfloop transitions, 6 changer transitions 23/88 dead transitions. [2025-03-15 01:53:57,217 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 88 transitions, 511 flow [2025-03-15 01:53:57,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-15 01:53:57,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-15 01:53:57,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 326 transitions. [2025-03-15 01:53:57,218 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7511520737327189 [2025-03-15 01:53:57,219 INFO L298 CegarLoopForPetriNet]: 63 programPoint places, 16 predicate places. [2025-03-15 01:53:57,219 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 88 transitions, 511 flow [2025-03-15 01:53:57,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 43.166666666666664) internal successors, (259), 6 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:53:57,220 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 01:53:57,220 INFO L221 CegarLoopForPetriNet]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 01:53:57,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-15 01:53:57,220 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-15 01:53:57,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 01:53:57,220 INFO L85 PathProgramCache]: Analyzing trace with hash 2034676025, now seen corresponding path program 1 times [2025-03-15 01:53:57,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 01:53:57,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561584685] [2025-03-15 01:53:57,221 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 01:53:57,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 01:53:57,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 01:53:57,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 01:53:57,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 01:53:57,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561584685] [2025-03-15 01:53:57,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561584685] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 01:53:57,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 01:53:57,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-15 01:53:57,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755270678] [2025-03-15 01:53:57,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 01:53:57,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-15 01:53:57,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 01:53:57,329 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-15 01:53:57,329 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-15 01:53:57,329 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 62 [2025-03-15 01:53:57,330 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 88 transitions, 511 flow. Second operand has 6 states, 6 states have (on average 43.333333333333336) internal successors, (260), 6 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:53:57,331 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 01:53:57,331 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 62 [2025-03-15 01:53:57,331 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 01:53:57,423 INFO L124 PetriNetUnfolderBase]: 24/202 cut-off events. [2025-03-15 01:53:57,423 INFO L125 PetriNetUnfolderBase]: For 340/390 co-relation queries the response was YES. [2025-03-15 01:53:57,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 592 conditions, 202 events. 24/202 cut-off events. For 340/390 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 834 event pairs, 3 based on Foata normal form. 18/205 useless extension candidates. Maximal degree in co-relation 540. Up to 48 conditions per place. [2025-03-15 01:53:57,424 INFO L140 encePairwiseOnDemand]: 54/62 looper letters, 16 selfloop transitions, 4 changer transitions 38/92 dead transitions. [2025-03-15 01:53:57,424 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 92 transitions, 635 flow [2025-03-15 01:53:57,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-15 01:53:57,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-15 01:53:57,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 414 transitions. [2025-03-15 01:53:57,426 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7419354838709677 [2025-03-15 01:53:57,427 INFO L298 CegarLoopForPetriNet]: 63 programPoint places, 23 predicate places. [2025-03-15 01:53:57,427 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 92 transitions, 635 flow [2025-03-15 01:53:57,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 43.333333333333336) internal successors, (260), 6 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:53:57,427 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 01:53:57,427 INFO L221 CegarLoopForPetriNet]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 01:53:57,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-15 01:53:57,427 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-15 01:53:57,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 01:53:57,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1079261771, now seen corresponding path program 1 times [2025-03-15 01:53:57,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 01:53:57,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958326421] [2025-03-15 01:53:57,428 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 01:53:57,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 01:53:57,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 01:53:57,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 01:53:57,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 01:53:57,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958326421] [2025-03-15 01:53:57,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958326421] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 01:53:57,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 01:53:57,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-15 01:53:57,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869616281] [2025-03-15 01:53:57,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 01:53:57,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-15 01:53:57,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 01:53:57,508 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-15 01:53:57,508 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-15 01:53:57,509 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 62 [2025-03-15 01:53:57,509 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 92 transitions, 635 flow. Second operand has 6 states, 6 states have (on average 43.0) internal successors, (258), 6 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:53:57,509 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 01:53:57,509 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 62 [2025-03-15 01:53:57,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 01:53:57,624 INFO L124 PetriNetUnfolderBase]: 23/192 cut-off events. [2025-03-15 01:53:57,624 INFO L125 PetriNetUnfolderBase]: For 489/547 co-relation queries the response was YES. [2025-03-15 01:53:57,625 INFO L83 FinitePrefix]: Finished finitePrefix Result has 653 conditions, 192 events. 23/192 cut-off events. For 489/547 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 775 event pairs, 5 based on Foata normal form. 6/185 useless extension candidates. Maximal degree in co-relation 597. Up to 47 conditions per place. [2025-03-15 01:53:57,625 INFO L140 encePairwiseOnDemand]: 54/62 looper letters, 12 selfloop transitions, 7 changer transitions 38/91 dead transitions. [2025-03-15 01:53:57,625 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 91 transitions, 727 flow [2025-03-15 01:53:57,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-15 01:53:57,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-15 01:53:57,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 372 transitions. [2025-03-15 01:53:57,627 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.75 [2025-03-15 01:53:57,628 INFO L298 CegarLoopForPetriNet]: 63 programPoint places, 29 predicate places. [2025-03-15 01:53:57,628 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 91 transitions, 727 flow [2025-03-15 01:53:57,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 43.0) internal successors, (258), 6 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:53:57,628 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 01:53:57,628 INFO L221 CegarLoopForPetriNet]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 01:53:57,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-15 01:53:57,629 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-15 01:53:57,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 01:53:57,629 INFO L85 PathProgramCache]: Analyzing trace with hash -554585372, now seen corresponding path program 1 times [2025-03-15 01:53:57,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 01:53:57,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407229496] [2025-03-15 01:53:57,629 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 01:53:57,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 01:53:57,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 01:53:57,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 01:53:57,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 01:53:57,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407229496] [2025-03-15 01:53:57,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407229496] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 01:53:57,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 01:53:57,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-15 01:53:57,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838087169] [2025-03-15 01:53:57,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 01:53:57,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-15 01:53:57,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 01:53:57,711 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-15 01:53:57,711 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-15 01:53:57,711 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 62 [2025-03-15 01:53:57,712 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 91 transitions, 727 flow. Second operand has 6 states, 6 states have (on average 43.166666666666664) internal successors, (259), 6 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:53:57,712 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 01:53:57,712 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 62 [2025-03-15 01:53:57,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 01:53:57,818 INFO L124 PetriNetUnfolderBase]: 22/190 cut-off events. [2025-03-15 01:53:57,818 INFO L125 PetriNetUnfolderBase]: For 684/800 co-relation queries the response was YES. [2025-03-15 01:53:57,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 716 conditions, 190 events. 22/190 cut-off events. For 684/800 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 751 event pairs, 5 based on Foata normal form. 18/197 useless extension candidates. Maximal degree in co-relation 656. Up to 46 conditions per place. [2025-03-15 01:53:57,819 INFO L140 encePairwiseOnDemand]: 54/62 looper letters, 0 selfloop transitions, 0 changer transitions 91/91 dead transitions. [2025-03-15 01:53:57,819 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 91 transitions, 829 flow [2025-03-15 01:53:57,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-15 01:53:57,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-03-15 01:53:57,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 536 transitions. [2025-03-15 01:53:57,820 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7204301075268817 [2025-03-15 01:53:57,820 INFO L298 CegarLoopForPetriNet]: 63 programPoint places, 39 predicate places. [2025-03-15 01:53:57,820 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 91 transitions, 829 flow [2025-03-15 01:53:57,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 43.166666666666664) internal successors, (259), 6 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:53:57,826 INFO L161 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/04-mutex_07-ps_nr.i_petrified1_AllErrorsAtOnce [2025-03-15 01:53:57,845 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2025-03-15 01:53:57,846 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2025-03-15 01:53:57,846 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2025-03-15 01:53:57,846 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2025-03-15 01:53:57,846 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2025-03-15 01:53:57,846 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2025-03-15 01:53:57,846 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2025-03-15 01:53:57,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-15 01:53:57,847 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 01:53:57,850 INFO L328 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-15 01:53:57,851 INFO L188 ceAbstractionStarter]: Computing trace abstraction results [2025-03-15 01:53:57,855 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 01:53:57 BasicIcfg [2025-03-15 01:53:57,855 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-15 01:53:57,856 INFO L158 Benchmark]: Toolchain (without parser) took 2512.92ms. Allocated memory was 71.3MB in the beginning and 109.1MB in the end (delta: 37.7MB). Free memory was 42.4MB in the beginning and 66.8MB in the end (delta: -24.5MB). Peak memory consumption was 45.6MB. Max. memory is 8.0GB. [2025-03-15 01:53:57,856 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 71.3MB. Free memory is still 35.6MB. There was no memory consumed. Max. memory is 8.0GB. [2025-03-15 01:53:57,856 INFO L158 Benchmark]: CACSL2BoogieTranslator took 381.48ms. Allocated memory is still 71.3MB. Free memory was 42.2MB in the beginning and 40.0MB in the end (delta: 2.2MB). Peak memory consumption was 25.3MB. Max. memory is 8.0GB. [2025-03-15 01:53:57,856 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.27ms. Allocated memory is still 71.3MB. Free memory was 40.0MB in the beginning and 38.2MB in the end (delta: 1.8MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-03-15 01:53:57,856 INFO L158 Benchmark]: Boogie Preprocessor took 23.11ms. Allocated memory is still 71.3MB. Free memory was 38.2MB in the beginning and 37.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 8.0GB. [2025-03-15 01:53:57,856 INFO L158 Benchmark]: RCFGBuilder took 236.53ms. Allocated memory is still 71.3MB. Free memory was 37.2MB in the beginning and 24.9MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2025-03-15 01:53:57,857 INFO L158 Benchmark]: TraceAbstraction took 1830.90ms. Allocated memory was 71.3MB in the beginning and 109.1MB in the end (delta: 37.7MB). Free memory was 23.7MB in the beginning and 66.8MB in the end (delta: -43.2MB). Peak memory consumption was 32.9MB. Max. memory is 8.0GB. [2025-03-15 01:53:57,857 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 71.3MB. Free memory is still 35.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 381.48ms. Allocated memory is still 71.3MB. Free memory was 42.2MB in the beginning and 40.0MB in the end (delta: 2.2MB). Peak memory consumption was 25.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 34.27ms. Allocated memory is still 71.3MB. Free memory was 40.0MB in the beginning and 38.2MB in the end (delta: 1.8MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 23.11ms. Allocated memory is still 71.3MB. Free memory was 38.2MB in the beginning and 37.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 236.53ms. Allocated memory is still 71.3MB. Free memory was 37.2MB in the beginning and 24.9MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 1830.90ms. Allocated memory was 71.3MB in the beginning and 109.1MB in the end (delta: 37.7MB). Free memory was 23.7MB in the beginning and 66.8MB in the end (delta: -43.2MB). Peak memory consumption was 32.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 945]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 945]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 932]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 932]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 76 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.7s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 175 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 175 mSDsluCounter, 172 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 99 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 401 IncrementalHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 73 mSDtfsCounter, 401 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=829occurred in iteration=8, InterpolantAutomatonStates: 52, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 298 NumberOfCodeBlocks, 298 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 290 ConstructedInterpolants, 0 QuantifiedInterpolants, 728 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-15 01:53:57,872 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...