/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/weaver/popl20-more-buffer-mult3.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.empire2-owicki-f61efc6-m [2025-03-15 02:50:47,718 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-15 02:50:47,764 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 02:50:47,797 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-15 02:50:47,799 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-15 02:50:47,799 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-15 02:50:47,799 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-15 02:50:47,799 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-15 02:50:47,800 INFO L153 SettingsManager]: * Use SBE=true [2025-03-15 02:50:47,800 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-15 02:50:47,800 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-15 02:50:47,800 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-15 02:50:47,800 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-15 02:50:47,800 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-15 02:50:47,800 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-15 02:50:47,800 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-15 02:50:47,800 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-15 02:50:47,800 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-15 02:50:47,800 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-15 02:50:47,800 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-15 02:50:47,800 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-15 02:50:47,800 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-03-15 02:50:47,801 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-15 02:50:47,801 INFO L153 SettingsManager]: * To the following directory=./dump/ [2025-03-15 02:50:47,801 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-15 02:50:47,801 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-15 02:50:47,801 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-15 02:50:47,801 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-15 02:50:47,801 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-15 02:50:47,801 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-15 02:50:47,801 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-15 02:50:47,801 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-15 02:50:47,801 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 02:50:48,020 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-15 02:50:48,025 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-15 02:50:48,027 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-15 02:50:48,027 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-15 02:50:48,028 INFO L274 PluginConnector]: CDTParser initialized [2025-03-15 02:50:48,028 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-buffer-mult3.wvr.c [2025-03-15 02:50:49,200 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65ba01ad9/e2990363316c4baa83a3c5bb43527b77/FLAGf34e4e188 [2025-03-15 02:50:49,337 INFO L384 CDTParser]: Found 1 translation units. [2025-03-15 02:50:49,338 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-buffer-mult3.wvr.c [2025-03-15 02:50:49,346 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65ba01ad9/e2990363316c4baa83a3c5bb43527b77/FLAGf34e4e188 [2025-03-15 02:50:49,739 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65ba01ad9/e2990363316c4baa83a3c5bb43527b77 [2025-03-15 02:50:49,741 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-15 02:50:49,741 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-03-15 02:50:49,742 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-15 02:50:49,742 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-15 02:50:49,745 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-15 02:50:49,746 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 02:50:49" (1/1) ... [2025-03-15 02:50:49,746 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fcdaedb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:50:49, skipping insertion in model container [2025-03-15 02:50:49,746 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 02:50:49" (1/1) ... [2025-03-15 02:50:49,758 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-15 02:50:49,886 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-15 02:50:49,893 INFO L200 MainTranslator]: Completed pre-run [2025-03-15 02:50:49,911 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-15 02:50:49,921 INFO L204 MainTranslator]: Completed translation [2025-03-15 02:50:49,923 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:50:49 WrapperNode [2025-03-15 02:50:49,923 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-15 02:50:49,924 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-15 02:50:49,924 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-15 02:50:49,924 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-15 02:50:49,928 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:50:49" (1/1) ... [2025-03-15 02:50:49,933 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:50:49" (1/1) ... [2025-03-15 02:50:49,956 INFO L138 Inliner]: procedures = 26, calls = 61, calls flagged for inlining = 19, calls inlined = 23, statements flattened = 326 [2025-03-15 02:50:49,956 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-15 02:50:49,957 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-15 02:50:49,957 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-15 02:50:49,957 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-15 02:50:49,962 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:50:49" (1/1) ... [2025-03-15 02:50:49,962 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:50:49" (1/1) ... [2025-03-15 02:50:49,964 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:50:49" (1/1) ... [2025-03-15 02:50:49,964 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:50:49" (1/1) ... [2025-03-15 02:50:49,970 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:50:49" (1/1) ... [2025-03-15 02:50:49,971 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:50:49" (1/1) ... [2025-03-15 02:50:49,975 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:50:49" (1/1) ... [2025-03-15 02:50:49,976 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:50:49" (1/1) ... [2025-03-15 02:50:49,977 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:50:49" (1/1) ... [2025-03-15 02:50:49,982 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-15 02:50:49,983 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-03-15 02:50:49,983 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-03-15 02:50:49,983 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-03-15 02:50:49,984 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:50:49" (1/1) ... [2025-03-15 02:50:49,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-15 02:50:50,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 02:50:50,020 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 02:50:50,023 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 02:50:50,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-15 02:50:50,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-15 02:50:50,043 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-15 02:50:50,043 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-15 02:50:50,044 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-15 02:50:50,044 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-15 02:50:50,044 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-15 02:50:50,044 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-03-15 02:50:50,044 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-03-15 02:50:50,044 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-03-15 02:50:50,044 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-03-15 02:50:50,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-15 02:50:50,044 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-15 02:50:50,044 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-15 02:50:50,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-15 02:50:50,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-15 02:50:50,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-15 02:50:50,047 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 02:50:50,148 INFO L234 CfgBuilder]: Building ICFG [2025-03-15 02:50:50,149 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-15 02:50:50,617 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-15 02:50:50,620 INFO L283 CfgBuilder]: Performing block encoding [2025-03-15 02:50:50,887 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-15 02:50:50,887 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-15 02:50:50,889 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 02:50:50 BoogieIcfgContainer [2025-03-15 02:50:50,889 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-03-15 02:50:50,891 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-15 02:50:50,891 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-15 02:50:50,895 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-15 02:50:50,895 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 02:50:49" (1/3) ... [2025-03-15 02:50:50,896 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2689d797 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 02:50:50, skipping insertion in model container [2025-03-15 02:50:50,896 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:50:49" (2/3) ... [2025-03-15 02:50:50,896 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2689d797 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 02:50:50, skipping insertion in model container [2025-03-15 02:50:50,896 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 02:50:50" (3/3) ... [2025-03-15 02:50:50,897 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-more-buffer-mult3.wvr.c [2025-03-15 02:50:50,910 INFO L303 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-15 02:50:50,911 INFO L169 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-more-buffer-mult3.wvr.c that has 5 procedures, 244 locations, 1 initial locations, 6 loop locations, and 30 error locations. [2025-03-15 02:50:50,911 INFO L581 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-15 02:50:51,026 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2025-03-15 02:50:51,063 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-15 02:50:51,074 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;@5ff0071d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-15 02:50:51,076 INFO L334 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2025-03-15 02:50:51,108 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-15 02:50:51,108 INFO L124 PetriNetUnfolderBase]: 2/88 cut-off events. [2025-03-15 02:50:51,109 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-15 02:50:51,110 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:50:51,110 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, 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 02:50:51,110 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:50:51,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:50:51,114 INFO L85 PathProgramCache]: Analyzing trace with hash 736584222, now seen corresponding path program 1 times [2025-03-15 02:50:51,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:50:51,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089846634] [2025-03-15 02:50:51,119 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:50:51,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:50:51,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:50:51,427 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 02:50:51,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:50:51,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089846634] [2025-03-15 02:50:51,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089846634] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:50:51,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:50:51,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-15 02:50:51,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578055633] [2025-03-15 02:50:51,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:50:51,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-15 02:50:51,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:50:51,453 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-15 02:50:51,454 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-15 02:50:51,456 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 255 [2025-03-15 02:50:51,462 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 255 transitions, 538 flow. Second operand has 4 states, 4 states have (on average 181.5) internal successors, (726), 4 states have internal predecessors, (726), 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 02:50:51,462 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:50:51,462 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 255 [2025-03-15 02:50:51,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:50:55,403 INFO L124 PetriNetUnfolderBase]: 17443/24628 cut-off events. [2025-03-15 02:50:55,403 INFO L125 PetriNetUnfolderBase]: For 3297/3297 co-relation queries the response was YES. [2025-03-15 02:50:55,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48230 conditions, 24628 events. 17443/24628 cut-off events. For 3297/3297 co-relation queries the response was YES. Maximal size of possible extension queue 2430. Compared 159507 event pairs, 10098 based on Foata normal form. 7/8462 useless extension candidates. Maximal degree in co-relation 47348. Up to 21562 conditions per place. [2025-03-15 02:50:55,649 INFO L140 encePairwiseOnDemand]: 228/255 looper letters, 69 selfloop transitions, 10 changer transitions 14/250 dead transitions. [2025-03-15 02:50:55,649 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 250 transitions, 684 flow [2025-03-15 02:50:55,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-15 02:50:55,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-15 02:50:55,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 997 transitions. [2025-03-15 02:50:55,663 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7819607843137255 [2025-03-15 02:50:55,665 INFO L298 CegarLoopForPetriNet]: 256 programPoint places, -13 predicate places. [2025-03-15 02:50:55,666 INFO L471 AbstractCegarLoop]: Abstraction has has 243 places, 250 transitions, 684 flow [2025-03-15 02:50:55,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 181.5) internal successors, (726), 4 states have internal predecessors, (726), 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 02:50:55,666 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:50:55,668 INFO L221 CegarLoopForPetriNet]: trace histogram [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, 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 02:50:55,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-15 02:50:55,668 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:50:55,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:50:55,669 INFO L85 PathProgramCache]: Analyzing trace with hash -270404989, now seen corresponding path program 1 times [2025-03-15 02:50:55,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:50:55,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543350169] [2025-03-15 02:50:55,669 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:50:55,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:50:55,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:50:55,893 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:50:55,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:50:55,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543350169] [2025-03-15 02:50:55,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543350169] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-15 02:50:55,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1723795303] [2025-03-15 02:50:55,893 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:50:55,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 02:50:55,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 02:50:55,896 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-15 02:50:55,898 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-15 02:50:55,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:50:55,997 INFO L256 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-15 02:50:56,002 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-15 02:50:56,074 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:50:56,074 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-15 02:50:56,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1723795303] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:50:56,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-15 02:50:56,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2025-03-15 02:50:56,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536226264] [2025-03-15 02:50:56,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:50:56,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-15 02:50:56,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:50:56,076 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-15 02:50:56,076 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-15 02:50:56,077 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 255 [2025-03-15 02:50:56,079 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 250 transitions, 684 flow. Second operand has 6 states, 6 states have (on average 182.16666666666666) internal successors, (1093), 6 states have internal predecessors, (1093), 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 02:50:56,080 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:50:56,080 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 255 [2025-03-15 02:50:56,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:50:58,877 INFO L124 PetriNetUnfolderBase]: 17443/24626 cut-off events. [2025-03-15 02:50:58,877 INFO L125 PetriNetUnfolderBase]: For 3996/4572 co-relation queries the response was YES. [2025-03-15 02:50:58,928 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69802 conditions, 24626 events. 17443/24626 cut-off events. For 3996/4572 co-relation queries the response was YES. Maximal size of possible extension queue 2430. Compared 159921 event pairs, 10098 based on Foata normal form. 0/8455 useless extension candidates. Maximal degree in co-relation 68620. Up to 21560 conditions per place. [2025-03-15 02:50:59,171 INFO L140 encePairwiseOnDemand]: 243/255 looper letters, 61 selfloop transitions, 16 changer transitions 14/248 dead transitions. [2025-03-15 02:50:59,172 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 248 transitions, 832 flow [2025-03-15 02:50:59,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-15 02:50:59,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-15 02:50:59,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1340 transitions. [2025-03-15 02:50:59,175 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7507002801120448 [2025-03-15 02:50:59,176 INFO L298 CegarLoopForPetriNet]: 256 programPoint places, -9 predicate places. [2025-03-15 02:50:59,176 INFO L471 AbstractCegarLoop]: Abstraction has has 247 places, 248 transitions, 832 flow [2025-03-15 02:50:59,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 182.16666666666666) internal successors, (1093), 6 states have internal predecessors, (1093), 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 02:50:59,176 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:50:59,177 INFO L221 CegarLoopForPetriNet]: trace histogram [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, 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 02:50:59,184 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-15 02:50:59,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 02:50:59,380 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:50:59,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:50:59,381 INFO L85 PathProgramCache]: Analyzing trace with hash 207380929, now seen corresponding path program 1 times [2025-03-15 02:50:59,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:50:59,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248447416] [2025-03-15 02:50:59,381 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:50:59,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:50:59,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:50:59,501 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:50:59,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:50:59,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248447416] [2025-03-15 02:50:59,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248447416] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-15 02:50:59,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [292068673] [2025-03-15 02:50:59,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:50:59,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 02:50:59,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 02:50:59,505 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-15 02:50:59,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-15 02:50:59,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:50:59,599 INFO L256 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-15 02:50:59,602 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-15 02:50:59,641 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:50:59,641 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-15 02:50:59,693 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:50:59,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [292068673] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-15 02:50:59,693 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-15 02:50:59,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2025-03-15 02:50:59,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631972475] [2025-03-15 02:50:59,693 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-15 02:50:59,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-15 02:50:59,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:50:59,697 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-15 02:50:59,698 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-03-15 02:50:59,699 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 255 [2025-03-15 02:50:59,702 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 248 transitions, 832 flow. Second operand has 12 states, 12 states have (on average 182.83333333333334) internal successors, (2194), 12 states have internal predecessors, (2194), 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 02:50:59,702 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:50:59,702 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 255 [2025-03-15 02:50:59,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:51:02,501 INFO L124 PetriNetUnfolderBase]: 17449/24696 cut-off events. [2025-03-15 02:51:02,501 INFO L125 PetriNetUnfolderBase]: For 5374/6526 co-relation queries the response was YES. [2025-03-15 02:51:02,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91604 conditions, 24696 events. 17449/24696 cut-off events. For 5374/6526 co-relation queries the response was YES. Maximal size of possible extension queue 2434. Compared 160472 event pairs, 10098 based on Foata normal form. 0/8519 useless extension candidates. Maximal degree in co-relation 89892. Up to 21612 conditions per place. [2025-03-15 02:51:02,682 INFO L140 encePairwiseOnDemand]: 241/255 looper letters, 93 selfloop transitions, 36 changer transitions 14/300 dead transitions. [2025-03-15 02:51:02,682 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 300 transitions, 1404 flow [2025-03-15 02:51:02,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-15 02:51:02,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-03-15 02:51:02,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2656 transitions. [2025-03-15 02:51:02,687 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7439775910364146 [2025-03-15 02:51:02,688 INFO L298 CegarLoopForPetriNet]: 256 programPoint places, 4 predicate places. [2025-03-15 02:51:02,688 INFO L471 AbstractCegarLoop]: Abstraction has has 260 places, 300 transitions, 1404 flow [2025-03-15 02:51:02,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 182.83333333333334) internal successors, (2194), 12 states have internal predecessors, (2194), 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 02:51:02,689 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:51:02,689 INFO L221 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 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, 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 02:51:02,695 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-15 02:51:02,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2025-03-15 02:51:02,893 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:51:02,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:51:02,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1577270286, now seen corresponding path program 2 times [2025-03-15 02:51:02,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:51:02,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625921203] [2025-03-15 02:51:02,894 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-15 02:51:02,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:51:02,912 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-15 02:51:02,912 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-15 02:51:03,000 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-03-15 02:51:03,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:51:03,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625921203] [2025-03-15 02:51:03,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625921203] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-15 02:51:03,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [21484302] [2025-03-15 02:51:03,000 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-15 02:51:03,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 02:51:03,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 02:51:03,002 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-15 02:51:03,004 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-15 02:51:03,081 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-15 02:51:03,082 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-15 02:51:03,084 INFO L256 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-15 02:51:03,086 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-15 02:51:03,169 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-03-15 02:51:03,170 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-15 02:51:03,263 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-03-15 02:51:03,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [21484302] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-15 02:51:03,263 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-15 02:51:03,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 7 [2025-03-15 02:51:03,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066216950] [2025-03-15 02:51:03,264 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-15 02:51:03,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-15 02:51:03,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:51:03,265 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-15 02:51:03,265 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-03-15 02:51:03,265 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 255 [2025-03-15 02:51:03,266 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 300 transitions, 1404 flow. Second operand has 8 states, 8 states have (on average 164.125) internal successors, (1313), 8 states have internal predecessors, (1313), 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 02:51:03,267 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:51:03,267 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 255 [2025-03-15 02:51:03,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:51:05,949 INFO L124 PetriNetUnfolderBase]: 14830/21465 cut-off events. [2025-03-15 02:51:05,950 INFO L125 PetriNetUnfolderBase]: For 6885/8493 co-relation queries the response was YES. [2025-03-15 02:51:05,995 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96981 conditions, 21465 events. 14830/21465 cut-off events. For 6885/8493 co-relation queries the response was YES. Maximal size of possible extension queue 2079. Compared 142627 event pairs, 8591 based on Foata normal form. 0/7810 useless extension candidates. Maximal degree in co-relation 95077. Up to 18419 conditions per place. [2025-03-15 02:51:06,148 INFO L140 encePairwiseOnDemand]: 232/255 looper letters, 105 selfloop transitions, 41 changer transitions 14/299 dead transitions. [2025-03-15 02:51:06,148 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 299 transitions, 1690 flow [2025-03-15 02:51:06,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-15 02:51:06,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-03-15 02:51:06,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2344 transitions. [2025-03-15 02:51:06,152 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.6565826330532213 [2025-03-15 02:51:06,152 INFO L298 CegarLoopForPetriNet]: 256 programPoint places, 15 predicate places. [2025-03-15 02:51:06,153 INFO L471 AbstractCegarLoop]: Abstraction has has 271 places, 299 transitions, 1690 flow [2025-03-15 02:51:06,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 164.125) internal successors, (1313), 8 states have internal predecessors, (1313), 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 02:51:06,153 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:51:06,153 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, 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, 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 02:51:06,159 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-15 02:51:06,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 02:51:06,358 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:51:06,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:51:06,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1571890269, now seen corresponding path program 1 times [2025-03-15 02:51:06,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:51:06,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512007519] [2025-03-15 02:51:06,359 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:51:06,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:51:06,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:51:06,587 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 02:51:06,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:51:06,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512007519] [2025-03-15 02:51:06,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512007519] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:51:06,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:51:06,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-15 02:51:06,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361099316] [2025-03-15 02:51:06,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:51:06,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-15 02:51:06,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:51:06,589 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-15 02:51:06,589 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-15 02:51:06,589 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 255 [2025-03-15 02:51:06,590 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 299 transitions, 1690 flow. Second operand has 3 states, 3 states have (on average 204.33333333333334) internal successors, (613), 3 states have internal predecessors, (613), 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 02:51:06,590 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:51:06,590 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 255 [2025-03-15 02:51:06,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:51:09,385 INFO L124 PetriNetUnfolderBase]: 18476/27454 cut-off events. [2025-03-15 02:51:09,385 INFO L125 PetriNetUnfolderBase]: For 27662/29618 co-relation queries the response was YES. [2025-03-15 02:51:09,448 INFO L83 FinitePrefix]: Finished finitePrefix Result has 140291 conditions, 27454 events. 18476/27454 cut-off events. For 27662/29618 co-relation queries the response was YES. Maximal size of possible extension queue 2498. Compared 214196 event pairs, 3403 based on Foata normal form. 0/11768 useless extension candidates. Maximal degree in co-relation 137495. Up to 21563 conditions per place. [2025-03-15 02:51:09,770 INFO L140 encePairwiseOnDemand]: 251/255 looper letters, 63 selfloop transitions, 2 changer transitions 15/328 dead transitions. [2025-03-15 02:51:09,770 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 328 transitions, 2119 flow [2025-03-15 02:51:09,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-15 02:51:09,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-15 02:51:09,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 678 transitions. [2025-03-15 02:51:09,772 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8862745098039215 [2025-03-15 02:51:09,772 INFO L298 CegarLoopForPetriNet]: 256 programPoint places, 17 predicate places. [2025-03-15 02:51:09,772 INFO L471 AbstractCegarLoop]: Abstraction has has 273 places, 328 transitions, 2119 flow [2025-03-15 02:51:09,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 204.33333333333334) internal successors, (613), 3 states have internal predecessors, (613), 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 02:51:09,773 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:51:09,773 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, 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, 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 02:51:09,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-15 02:51:09,773 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:51:09,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:51:09,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1483959182, now seen corresponding path program 1 times [2025-03-15 02:51:09,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:51:09,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782185097] [2025-03-15 02:51:09,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:51:09,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:51:09,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:51:09,840 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 02:51:09,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:51:09,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782185097] [2025-03-15 02:51:09,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782185097] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:51:09,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:51:09,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-15 02:51:09,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477530861] [2025-03-15 02:51:09,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:51:09,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-15 02:51:09,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:51:09,842 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-15 02:51:09,842 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-15 02:51:09,842 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 255 [2025-03-15 02:51:09,843 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 273 places, 328 transitions, 2119 flow. Second operand has 3 states, 3 states have (on average 205.66666666666666) internal successors, (617), 3 states have internal predecessors, (617), 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 02:51:09,843 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:51:09,843 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 255 [2025-03-15 02:51:09,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:51:12,973 INFO L124 PetriNetUnfolderBase]: 18345/28146 cut-off events. [2025-03-15 02:51:12,974 INFO L125 PetriNetUnfolderBase]: For 34473/46434 co-relation queries the response was YES. [2025-03-15 02:51:13,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161685 conditions, 28146 events. 18345/28146 cut-off events. For 34473/46434 co-relation queries the response was YES. Maximal size of possible extension queue 2637. Compared 228281 event pairs, 10034 based on Foata normal form. 2/12588 useless extension candidates. Maximal degree in co-relation 126540. Up to 21210 conditions per place. [2025-03-15 02:51:13,261 INFO L140 encePairwiseOnDemand]: 246/255 looper letters, 79 selfloop transitions, 8 changer transitions 16/352 dead transitions. [2025-03-15 02:51:13,262 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 352 transitions, 2602 flow [2025-03-15 02:51:13,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-15 02:51:13,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-15 02:51:13,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 677 transitions. [2025-03-15 02:51:13,263 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8849673202614379 [2025-03-15 02:51:13,264 INFO L298 CegarLoopForPetriNet]: 256 programPoint places, 18 predicate places. [2025-03-15 02:51:13,264 INFO L471 AbstractCegarLoop]: Abstraction has has 274 places, 352 transitions, 2602 flow [2025-03-15 02:51:13,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 205.66666666666666) internal successors, (617), 3 states have internal predecessors, (617), 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 02:51:13,264 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:51:13,264 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, 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, 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 02:51:13,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-15 02:51:13,264 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:51:13,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:51:13,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1483959183, now seen corresponding path program 1 times [2025-03-15 02:51:13,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:51:13,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408353705] [2025-03-15 02:51:13,265 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:51:13,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:51:13,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:51:13,364 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 02:51:13,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:51:13,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408353705] [2025-03-15 02:51:13,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408353705] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:51:13,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:51:13,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-15 02:51:13,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627134997] [2025-03-15 02:51:13,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:51:13,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-15 02:51:13,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:51:13,365 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-15 02:51:13,365 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-15 02:51:13,366 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 255 [2025-03-15 02:51:13,366 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 352 transitions, 2602 flow. Second operand has 6 states, 6 states have (on average 180.5) internal successors, (1083), 6 states have internal predecessors, (1083), 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 02:51:13,367 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:51:13,367 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 255 [2025-03-15 02:51:13,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:51:17,064 INFO L124 PetriNetUnfolderBase]: 19443/28545 cut-off events. [2025-03-15 02:51:17,065 INFO L125 PetriNetUnfolderBase]: For 51594/70733 co-relation queries the response was YES. [2025-03-15 02:51:17,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 192662 conditions, 28545 events. 19443/28545 cut-off events. For 51594/70733 co-relation queries the response was YES. Maximal size of possible extension queue 2368. Compared 204295 event pairs, 5173 based on Foata normal form. 376/12587 useless extension candidates. Maximal degree in co-relation 162456. Up to 22432 conditions per place. [2025-03-15 02:51:17,496 INFO L140 encePairwiseOnDemand]: 239/255 looper letters, 213 selfloop transitions, 12 changer transitions 17/416 dead transitions. [2025-03-15 02:51:17,497 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 416 transitions, 3770 flow [2025-03-15 02:51:17,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-15 02:51:17,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-15 02:51:17,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1699 transitions. [2025-03-15 02:51:17,499 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7403050108932462 [2025-03-15 02:51:17,500 INFO L298 CegarLoopForPetriNet]: 256 programPoint places, 26 predicate places. [2025-03-15 02:51:17,500 INFO L471 AbstractCegarLoop]: Abstraction has has 282 places, 416 transitions, 3770 flow [2025-03-15 02:51:17,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 180.5) internal successors, (1083), 6 states have internal predecessors, (1083), 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 02:51:17,501 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:51:17,501 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, 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, 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 02:51:17,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-15 02:51:17,501 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:51:17,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:51:17,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1901282481, now seen corresponding path program 1 times [2025-03-15 02:51:17,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:51:17,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610614114] [2025-03-15 02:51:17,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:51:17,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:51:17,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:51:17,563 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 02:51:17,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:51:17,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610614114] [2025-03-15 02:51:17,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610614114] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:51:17,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:51:17,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-15 02:51:17,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375764166] [2025-03-15 02:51:17,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:51:17,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-15 02:51:17,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:51:17,564 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-15 02:51:17,564 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-15 02:51:17,564 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 255 [2025-03-15 02:51:17,565 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 416 transitions, 3770 flow. Second operand has 3 states, 3 states have (on average 204.66666666666666) internal successors, (614), 3 states have internal predecessors, (614), 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 02:51:17,565 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:51:17,565 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 255 [2025-03-15 02:51:17,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:51:23,470 INFO L124 PetriNetUnfolderBase]: 28935/45605 cut-off events. [2025-03-15 02:51:23,470 INFO L125 PetriNetUnfolderBase]: For 125781/143321 co-relation queries the response was YES. [2025-03-15 02:51:23,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 307937 conditions, 45605 events. 28935/45605 cut-off events. For 125781/143321 co-relation queries the response was YES. Maximal size of possible extension queue 2440. Compared 379493 event pairs, 5434 based on Foata normal form. 1/22959 useless extension candidates. Maximal degree in co-relation 260918. Up to 31068 conditions per place. [2025-03-15 02:51:24,003 INFO L140 encePairwiseOnDemand]: 251/255 looper letters, 181 selfloop transitions, 5 changer transitions 21/499 dead transitions. [2025-03-15 02:51:24,003 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 499 transitions, 5527 flow [2025-03-15 02:51:24,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-15 02:51:24,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-15 02:51:24,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 675 transitions. [2025-03-15 02:51:24,005 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8823529411764706 [2025-03-15 02:51:24,006 INFO L298 CegarLoopForPetriNet]: 256 programPoint places, 28 predicate places. [2025-03-15 02:51:24,006 INFO L471 AbstractCegarLoop]: Abstraction has has 284 places, 499 transitions, 5527 flow [2025-03-15 02:51:24,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 204.66666666666666) internal successors, (614), 3 states have internal predecessors, (614), 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 02:51:24,006 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:51:24,006 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, 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, 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 02:51:24,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-15 02:51:24,006 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:51:24,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:51:24,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1901282483, now seen corresponding path program 1 times [2025-03-15 02:51:24,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:51:24,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503735880] [2025-03-15 02:51:24,007 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:51:24,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:51:24,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:51:24,066 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 02:51:24,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:51:24,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503735880] [2025-03-15 02:51:24,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503735880] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:51:24,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:51:24,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-15 02:51:24,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401060215] [2025-03-15 02:51:24,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:51:24,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-15 02:51:24,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:51:24,067 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-15 02:51:24,068 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-15 02:51:24,068 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 200 out of 255 [2025-03-15 02:51:24,070 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 499 transitions, 5527 flow. Second operand has 4 states, 4 states have (on average 202.5) internal successors, (810), 4 states have internal predecessors, (810), 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 02:51:24,070 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:51:24,070 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 200 of 255 [2025-03-15 02:51:24,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:51:29,593 INFO L124 PetriNetUnfolderBase]: 24584/39161 cut-off events. [2025-03-15 02:51:29,594 INFO L125 PetriNetUnfolderBase]: For 146045/164900 co-relation queries the response was YES. [2025-03-15 02:51:29,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 287640 conditions, 39161 events. 24584/39161 cut-off events. For 146045/164900 co-relation queries the response was YES. Maximal size of possible extension queue 2075. Compared 322752 event pairs, 4986 based on Foata normal form. 1/20285 useless extension candidates. Maximal degree in co-relation 243511. Up to 26307 conditions per place. [2025-03-15 02:51:30,096 INFO L140 encePairwiseOnDemand]: 251/255 looper letters, 175 selfloop transitions, 3 changer transitions 21/491 dead transitions. [2025-03-15 02:51:30,096 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 491 transitions, 5755 flow [2025-03-15 02:51:30,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-15 02:51:30,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-15 02:51:30,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 839 transitions. [2025-03-15 02:51:30,102 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8225490196078431 [2025-03-15 02:51:30,102 INFO L298 CegarLoopForPetriNet]: 256 programPoint places, 30 predicate places. [2025-03-15 02:51:30,102 INFO L471 AbstractCegarLoop]: Abstraction has has 286 places, 491 transitions, 5755 flow [2025-03-15 02:51:30,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 202.5) internal successors, (810), 4 states have internal predecessors, (810), 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 02:51:30,103 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:51:30,103 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, 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, 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 02:51:30,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-15 02:51:30,103 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:51:30,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:51:30,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1901282482, now seen corresponding path program 1 times [2025-03-15 02:51:30,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:51:30,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568134755] [2025-03-15 02:51:30,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:51:30,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:51:30,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:51:30,191 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 02:51:30,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:51:30,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568134755] [2025-03-15 02:51:30,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568134755] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:51:30,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:51:30,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-15 02:51:30,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649745235] [2025-03-15 02:51:30,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:51:30,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-15 02:51:30,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:51:30,192 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-15 02:51:30,192 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-15 02:51:30,193 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 255 [2025-03-15 02:51:30,194 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 491 transitions, 5755 flow. Second operand has 6 states, 6 states have (on average 180.5) internal successors, (1083), 6 states have internal predecessors, (1083), 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 02:51:30,194 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:51:30,194 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 255 [2025-03-15 02:51:30,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:51:36,499 INFO L124 PetriNetUnfolderBase]: 25767/41357 cut-off events. [2025-03-15 02:51:36,500 INFO L125 PetriNetUnfolderBase]: For 211551/239126 co-relation queries the response was YES. [2025-03-15 02:51:36,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 328757 conditions, 41357 events. 25767/41357 cut-off events. For 211551/239126 co-relation queries the response was YES. Maximal size of possible extension queue 2039. Compared 341428 event pairs, 5274 based on Foata normal form. 398/22120 useless extension candidates. Maximal degree in co-relation 285525. Up to 27452 conditions per place. [2025-03-15 02:51:37,171 INFO L140 encePairwiseOnDemand]: 237/255 looper letters, 310 selfloop transitions, 18 changer transitions 39/543 dead transitions. [2025-03-15 02:51:37,171 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 543 transitions, 7559 flow [2025-03-15 02:51:37,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-15 02:51:37,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-15 02:51:37,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1681 transitions. [2025-03-15 02:51:37,174 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7324618736383443 [2025-03-15 02:51:37,175 INFO L298 CegarLoopForPetriNet]: 256 programPoint places, 38 predicate places. [2025-03-15 02:51:37,175 INFO L471 AbstractCegarLoop]: Abstraction has has 294 places, 543 transitions, 7559 flow [2025-03-15 02:51:37,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 180.5) internal successors, (1083), 6 states have internal predecessors, (1083), 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 02:51:37,176 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:51:37,176 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, 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, 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 02:51:37,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-15 02:51:37,176 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:51:37,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:51:37,177 INFO L85 PathProgramCache]: Analyzing trace with hash -62736268, now seen corresponding path program 1 times [2025-03-15 02:51:37,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:51:37,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6305823] [2025-03-15 02:51:37,177 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:51:37,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:51:37,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:51:37,480 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:51:37,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:51:37,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6305823] [2025-03-15 02:51:37,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6305823] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-15 02:51:37,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [108573705] [2025-03-15 02:51:37,481 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:51:37,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 02:51:37,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 02:51:37,483 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-15 02:51:37,486 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-15 02:51:37,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:51:37,573 INFO L256 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-15 02:51:37,577 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-15 02:51:37,682 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-15 02:51:37,682 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-15 02:51:37,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [108573705] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:51:37,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-15 02:51:37,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2025-03-15 02:51:37,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766553848] [2025-03-15 02:51:37,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:51:37,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-15 02:51:37,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:51:37,683 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-15 02:51:37,683 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2025-03-15 02:51:37,683 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 255 [2025-03-15 02:51:37,684 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 294 places, 543 transitions, 7559 flow. Second operand has 5 states, 5 states have (on average 198.4) internal successors, (992), 5 states have internal predecessors, (992), 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 02:51:37,684 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:51:37,684 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 255 [2025-03-15 02:51:37,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:51:43,780 INFO L124 PetriNetUnfolderBase]: 23442/38391 cut-off events. [2025-03-15 02:51:43,780 INFO L125 PetriNetUnfolderBase]: For 240247/258555 co-relation queries the response was YES. [2025-03-15 02:51:43,895 INFO L83 FinitePrefix]: Finished finitePrefix Result has 327018 conditions, 38391 events. 23442/38391 cut-off events. For 240247/258555 co-relation queries the response was YES. Maximal size of possible extension queue 1899. Compared 321931 event pairs, 4200 based on Foata normal form. 15/20804 useless extension candidates. Maximal degree in co-relation 288091. Up to 24996 conditions per place. [2025-03-15 02:51:44,273 INFO L140 encePairwiseOnDemand]: 245/255 looper letters, 240 selfloop transitions, 23 changer transitions 39/586 dead transitions. [2025-03-15 02:51:44,273 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 586 transitions, 9067 flow [2025-03-15 02:51:44,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-15 02:51:44,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-15 02:51:44,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1241 transitions. [2025-03-15 02:51:44,275 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8111111111111111 [2025-03-15 02:51:44,276 INFO L298 CegarLoopForPetriNet]: 256 programPoint places, 42 predicate places. [2025-03-15 02:51:44,276 INFO L471 AbstractCegarLoop]: Abstraction has has 298 places, 586 transitions, 9067 flow [2025-03-15 02:51:44,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 198.4) internal successors, (992), 5 states have internal predecessors, (992), 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 02:51:44,276 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:51:44,276 INFO L221 CegarLoopForPetriNet]: trace histogram [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, 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, 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 02:51:44,282 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-15 02:51:44,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 02:51:44,477 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:51:44,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:51:44,477 INFO L85 PathProgramCache]: Analyzing trace with hash -664324002, now seen corresponding path program 1 times [2025-03-15 02:51:44,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:51:44,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848352699] [2025-03-15 02:51:44,478 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:51:44,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:51:44,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:51:44,537 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-15 02:51:44,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:51:44,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848352699] [2025-03-15 02:51:44,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848352699] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-15 02:51:44,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [595534324] [2025-03-15 02:51:44,537 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:51:44,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 02:51:44,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 02:51:44,541 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-15 02:51:44,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-15 02:51:44,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:51:44,624 INFO L256 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-15 02:51:44,626 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-15 02:51:44,767 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:51:44,768 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-15 02:51:45,091 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:51:45,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [595534324] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-15 02:51:45,091 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-15 02:51:45,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 9, 9] total 18 [2025-03-15 02:51:45,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906441297] [2025-03-15 02:51:45,091 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-15 02:51:45,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-03-15 02:51:45,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:51:45,092 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-03-15 02:51:45,092 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2025-03-15 02:51:45,093 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 255 [2025-03-15 02:51:45,095 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 586 transitions, 9067 flow. Second operand has 19 states, 19 states have (on average 164.1578947368421) internal successors, (3119), 19 states have internal predecessors, (3119), 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 02:51:45,095 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:51:45,095 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 255 [2025-03-15 02:51:45,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:51:59,213 INFO L124 PetriNetUnfolderBase]: 47188/77091 cut-off events. [2025-03-15 02:51:59,214 INFO L125 PetriNetUnfolderBase]: For 578038/633530 co-relation queries the response was YES. [2025-03-15 02:51:59,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 711576 conditions, 77091 events. 47188/77091 cut-off events. For 578038/633530 co-relation queries the response was YES. Maximal size of possible extension queue 2645. Compared 691520 event pairs, 7711 based on Foata normal form. 1534/43723 useless extension candidates. Maximal degree in co-relation 404299. Up to 49847 conditions per place. [2025-03-15 02:52:00,419 INFO L140 encePairwiseOnDemand]: 230/255 looper letters, 721 selfloop transitions, 69 changer transitions 55/983 dead transitions. [2025-03-15 02:52:00,419 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 983 transitions, 19380 flow [2025-03-15 02:52:00,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-03-15 02:52:00,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2025-03-15 02:52:00,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3984 transitions. [2025-03-15 02:52:00,424 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.6792838874680307 [2025-03-15 02:52:00,424 INFO L298 CegarLoopForPetriNet]: 256 programPoint places, 64 predicate places. [2025-03-15 02:52:00,424 INFO L471 AbstractCegarLoop]: Abstraction has has 320 places, 983 transitions, 19380 flow [2025-03-15 02:52:00,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 164.1578947368421) internal successors, (3119), 19 states have internal predecessors, (3119), 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 02:52:00,425 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:52:00,425 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, 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, 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] [2025-03-15 02:52:00,432 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-15 02:52:00,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2025-03-15 02:52:00,626 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:52:00,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:52:00,627 INFO L85 PathProgramCache]: Analyzing trace with hash 449052885, now seen corresponding path program 1 times [2025-03-15 02:52:00,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:52:00,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375944181] [2025-03-15 02:52:00,627 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:52:00,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:52:00,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:52:00,733 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-15 02:52:00,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:52:00,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375944181] [2025-03-15 02:52:00,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375944181] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:52:00,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:52:00,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-15 02:52:00,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135341323] [2025-03-15 02:52:00,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:52:00,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-15 02:52:00,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:52:00,734 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-15 02:52:00,734 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-15 02:52:00,734 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 255 [2025-03-15 02:52:00,735 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 983 transitions, 19380 flow. Second operand has 5 states, 5 states have (on average 171.0) internal successors, (855), 5 states have internal predecessors, (855), 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 02:52:00,735 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:52:00,735 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 255 [2025-03-15 02:52:00,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:52:13,022 INFO L124 PetriNetUnfolderBase]: 39070/64620 cut-off events. [2025-03-15 02:52:13,022 INFO L125 PetriNetUnfolderBase]: For 563924/608942 co-relation queries the response was YES. [2025-03-15 02:52:13,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 627228 conditions, 64620 events. 39070/64620 cut-off events. For 563924/608942 co-relation queries the response was YES. Maximal size of possible extension queue 2196. Compared 572960 event pairs, 6410 based on Foata normal form. 29/36955 useless extension candidates. Maximal degree in co-relation 384719. Up to 40940 conditions per place. [2025-03-15 02:52:14,021 INFO L140 encePairwiseOnDemand]: 245/255 looper letters, 550 selfloop transitions, 5 changer transitions 55/961 dead transitions. [2025-03-15 02:52:14,021 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 961 transitions, 20018 flow [2025-03-15 02:52:14,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-15 02:52:14,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-15 02:52:14,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1058 transitions. [2025-03-15 02:52:14,023 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.6915032679738562 [2025-03-15 02:52:14,024 INFO L298 CegarLoopForPetriNet]: 256 programPoint places, 68 predicate places. [2025-03-15 02:52:14,024 INFO L471 AbstractCegarLoop]: Abstraction has has 324 places, 961 transitions, 20018 flow [2025-03-15 02:52:14,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 171.0) internal successors, (855), 5 states have internal predecessors, (855), 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 02:52:14,024 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:52:14,024 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, 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, 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] [2025-03-15 02:52:14,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-15 02:52:14,024 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:52:14,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:52:14,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1035738692, now seen corresponding path program 1 times [2025-03-15 02:52:14,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:52:14,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879503331] [2025-03-15 02:52:14,025 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:52:14,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:52:14,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:52:14,069 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-15 02:52:14,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:52:14,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879503331] [2025-03-15 02:52:14,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879503331] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:52:14,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:52:14,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-15 02:52:14,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159681797] [2025-03-15 02:52:14,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:52:14,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-15 02:52:14,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:52:14,070 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-15 02:52:14,071 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-15 02:52:14,071 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 255 [2025-03-15 02:52:14,071 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 961 transitions, 20018 flow. Second operand has 3 states, 3 states have (on average 206.0) internal successors, (618), 3 states have internal predecessors, (618), 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 02:52:14,071 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:52:14,071 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 255 [2025-03-15 02:52:14,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:52:25,681 INFO L124 PetriNetUnfolderBase]: 38474/60073 cut-off events. [2025-03-15 02:52:25,681 INFO L125 PetriNetUnfolderBase]: For 552362/630363 co-relation queries the response was YES. [2025-03-15 02:52:25,925 INFO L83 FinitePrefix]: Finished finitePrefix Result has 648895 conditions, 60073 events. 38474/60073 cut-off events. For 552362/630363 co-relation queries the response was YES. Maximal size of possible extension queue 2002. Compared 475104 event pairs, 9398 based on Foata normal form. 84/33712 useless extension candidates. Maximal degree in co-relation 381947. Up to 39857 conditions per place. [2025-03-15 02:52:26,674 INFO L140 encePairwiseOnDemand]: 245/255 looper letters, 592 selfloop transitions, 79 changer transitions 63/1115 dead transitions. [2025-03-15 02:52:26,675 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 1115 transitions, 25860 flow [2025-03-15 02:52:26,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-15 02:52:26,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-15 02:52:26,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 668 transitions. [2025-03-15 02:52:26,676 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.873202614379085 [2025-03-15 02:52:26,676 INFO L298 CegarLoopForPetriNet]: 256 programPoint places, 69 predicate places. [2025-03-15 02:52:26,676 INFO L471 AbstractCegarLoop]: Abstraction has has 325 places, 1115 transitions, 25860 flow [2025-03-15 02:52:26,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 206.0) internal successors, (618), 3 states have internal predecessors, (618), 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 02:52:26,677 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:52:26,677 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, 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, 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] [2025-03-15 02:52:26,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-15 02:52:26,677 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:52:26,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:52:26,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1035738693, now seen corresponding path program 1 times [2025-03-15 02:52:26,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:52:26,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233965612] [2025-03-15 02:52:26,677 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:52:26,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:52:26,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:52:26,785 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:52:26,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:52:26,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233965612] [2025-03-15 02:52:26,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233965612] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-15 02:52:26,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [667914174] [2025-03-15 02:52:26,786 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:52:26,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 02:52:26,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 02:52:26,788 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-15 02:52:26,789 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-15 02:52:26,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:52:26,865 INFO L256 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-15 02:52:26,867 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-15 02:52:26,964 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-15 02:52:26,964 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-15 02:52:26,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [667914174] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:52:26,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-15 02:52:26,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2025-03-15 02:52:26,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631485988] [2025-03-15 02:52:26,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:52:26,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-15 02:52:26,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:52:26,965 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-15 02:52:26,965 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2025-03-15 02:52:26,965 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 255 [2025-03-15 02:52:26,966 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 1115 transitions, 25860 flow. Second operand has 5 states, 5 states have (on average 198.6) internal successors, (993), 5 states have internal predecessors, (993), 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 02:52:26,966 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:52:26,966 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 255 [2025-03-15 02:52:26,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:52:37,280 INFO L124 PetriNetUnfolderBase]: 30123/51404 cut-off events. [2025-03-15 02:52:37,280 INFO L125 PetriNetUnfolderBase]: For 676774/733492 co-relation queries the response was YES. [2025-03-15 02:52:37,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 546149 conditions, 51404 events. 30123/51404 cut-off events. For 676774/733492 co-relation queries the response was YES. Maximal size of possible extension queue 1656. Compared 449828 event pairs, 5983 based on Foata normal form. 152/30931 useless extension candidates. Maximal degree in co-relation 310717. Up to 31243 conditions per place. [2025-03-15 02:52:38,136 INFO L140 encePairwiseOnDemand]: 244/255 looper letters, 706 selfloop transitions, 71 changer transitions 63/1212 dead transitions. [2025-03-15 02:52:38,136 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 1212 transitions, 30452 flow [2025-03-15 02:52:38,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-15 02:52:38,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-15 02:52:38,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1235 transitions. [2025-03-15 02:52:38,138 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8071895424836601 [2025-03-15 02:52:38,138 INFO L298 CegarLoopForPetriNet]: 256 programPoint places, 72 predicate places. [2025-03-15 02:52:38,138 INFO L471 AbstractCegarLoop]: Abstraction has has 328 places, 1212 transitions, 30452 flow [2025-03-15 02:52:38,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 198.6) internal successors, (993), 5 states have internal predecessors, (993), 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 02:52:38,139 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:52:38,139 INFO L221 CegarLoopForPetriNet]: trace histogram [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, 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, 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] [2025-03-15 02:52:38,144 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-15 02:52:38,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2025-03-15 02:52:38,339 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:52:38,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:52:38,340 INFO L85 PathProgramCache]: Analyzing trace with hash 647425757, now seen corresponding path program 1 times [2025-03-15 02:52:38,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:52:38,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86425554] [2025-03-15 02:52:38,340 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:52:38,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:52:38,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:52:38,383 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-15 02:52:38,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:52:38,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86425554] [2025-03-15 02:52:38,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86425554] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:52:38,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:52:38,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-15 02:52:38,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103079006] [2025-03-15 02:52:38,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:52:38,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-15 02:52:38,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:52:38,385 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-15 02:52:38,385 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-15 02:52:38,385 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 255 [2025-03-15 02:52:38,386 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 328 places, 1212 transitions, 30452 flow. Second operand has 3 states, 3 states have (on average 205.66666666666666) internal successors, (617), 3 states have internal predecessors, (617), 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 02:52:38,386 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:52:38,386 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 255 [2025-03-15 02:52:38,386 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:52:48,396 INFO L124 PetriNetUnfolderBase]: 26577/46453 cut-off events. [2025-03-15 02:52:48,396 INFO L125 PetriNetUnfolderBase]: For 761512/829825 co-relation queries the response was YES. [2025-03-15 02:52:48,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 512977 conditions, 46453 events. 26577/46453 cut-off events. For 761512/829825 co-relation queries the response was YES. Maximal size of possible extension queue 1484. Compared 409889 event pairs, 4954 based on Foata normal form. 65/28620 useless extension candidates. Maximal degree in co-relation 265523. Up to 31772 conditions per place. [2025-03-15 02:52:49,166 INFO L140 encePairwiseOnDemand]: 253/255 looper letters, 757 selfloop transitions, 1 changer transitions 63/1201 dead transitions. [2025-03-15 02:52:49,167 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 329 places, 1201 transitions, 31708 flow [2025-03-15 02:52:49,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-15 02:52:49,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-15 02:52:49,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 640 transitions. [2025-03-15 02:52:49,168 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8366013071895425 [2025-03-15 02:52:49,168 INFO L298 CegarLoopForPetriNet]: 256 programPoint places, 73 predicate places. [2025-03-15 02:52:49,168 INFO L471 AbstractCegarLoop]: Abstraction has has 329 places, 1201 transitions, 31708 flow [2025-03-15 02:52:49,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 205.66666666666666) internal successors, (617), 3 states have internal predecessors, (617), 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 02:52:49,168 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:52:49,168 INFO L221 CegarLoopForPetriNet]: trace histogram [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, 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, 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] [2025-03-15 02:52:49,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-15 02:52:49,169 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:52:49,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:52:49,169 INFO L85 PathProgramCache]: Analyzing trace with hash 647425758, now seen corresponding path program 1 times [2025-03-15 02:52:49,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:52:49,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396962890] [2025-03-15 02:52:49,169 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:52:49,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:52:49,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:52:49,376 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-15 02:52:49,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:52:49,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396962890] [2025-03-15 02:52:49,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396962890] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-15 02:52:49,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1862768875] [2025-03-15 02:52:49,377 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:52:49,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 02:52:49,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 02:52:49,379 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-15 02:52:49,381 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-15 02:52:49,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:52:49,466 INFO L256 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-15 02:52:49,467 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-15 02:52:49,590 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:52:49,590 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-15 02:52:49,761 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:52:49,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1862768875] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-15 02:52:49,761 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-15 02:52:49,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 9, 9] total 18 [2025-03-15 02:52:49,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579376784] [2025-03-15 02:52:49,762 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-15 02:52:49,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-03-15 02:52:49,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:52:49,763 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-03-15 02:52:49,763 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2025-03-15 02:52:49,763 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 255 [2025-03-15 02:52:49,765 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 1201 transitions, 31708 flow. Second operand has 19 states, 19 states have (on average 164.26315789473685) internal successors, (3121), 19 states have internal predecessors, (3121), 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 02:52:49,765 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:52:49,765 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 255 [2025-03-15 02:52:49,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:53:12,915 INFO L124 PetriNetUnfolderBase]: 53907/93510 cut-off events. [2025-03-15 02:53:12,916 INFO L125 PetriNetUnfolderBase]: For 1667641/1817880 co-relation queries the response was YES. [2025-03-15 02:53:13,637 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1096647 conditions, 93510 events. 53907/93510 cut-off events. For 1667641/1817880 co-relation queries the response was YES. Maximal size of possible extension queue 2716. Compared 894453 event pairs, 8555 based on Foata normal form. 2787/61044 useless extension candidates. Maximal degree in co-relation 405113. Up to 64724 conditions per place. [2025-03-15 02:53:15,247 INFO L140 encePairwiseOnDemand]: 231/255 looper letters, 1695 selfloop transitions, 188 changer transitions 95/2133 dead transitions. [2025-03-15 02:53:15,247 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 351 places, 2133 transitions, 67588 flow [2025-03-15 02:53:15,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-03-15 02:53:15,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2025-03-15 02:53:15,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3907 transitions. [2025-03-15 02:53:15,250 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.66615515771526 [2025-03-15 02:53:15,251 INFO L298 CegarLoopForPetriNet]: 256 programPoint places, 95 predicate places. [2025-03-15 02:53:15,251 INFO L471 AbstractCegarLoop]: Abstraction has has 351 places, 2133 transitions, 67588 flow [2025-03-15 02:53:15,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 164.26315789473685) internal successors, (3121), 19 states have internal predecessors, (3121), 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 02:53:15,255 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:53:15,255 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, 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, 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, 1, 1, 1, 1, 1] [2025-03-15 02:53:15,262 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-03-15 02:53:15,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 02:53:15,456 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:53:15,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:53:15,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1958256985, now seen corresponding path program 1 times [2025-03-15 02:53:15,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:53:15,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512888400] [2025-03-15 02:53:15,459 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:53:15,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:53:15,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:53:15,561 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-15 02:53:15,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:53:15,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512888400] [2025-03-15 02:53:15,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512888400] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:53:15,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:53:15,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-15 02:53:15,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736902709] [2025-03-15 02:53:15,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:53:15,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-15 02:53:15,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:53:15,562 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-15 02:53:15,562 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-15 02:53:15,562 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 255 [2025-03-15 02:53:15,563 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 351 places, 2133 transitions, 67588 flow. Second operand has 3 states, 3 states have (on average 205.0) internal successors, (615), 3 states have internal predecessors, (615), 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 02:53:15,563 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:53:15,563 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 255 [2025-03-15 02:53:15,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:53:37,163 INFO L124 PetriNetUnfolderBase]: 35645/64113 cut-off events. [2025-03-15 02:53:37,163 INFO L125 PetriNetUnfolderBase]: For 1244870/1332847 co-relation queries the response was YES. [2025-03-15 02:53:37,601 INFO L83 FinitePrefix]: Finished finitePrefix Result has 767839 conditions, 64113 events. 35645/64113 cut-off events. For 1244870/1332847 co-relation queries the response was YES. Maximal size of possible extension queue 1846. Compared 607100 event pairs, 6278 based on Foata normal form. 979/42698 useless extension candidates. Maximal degree in co-relation 304352. Up to 43295 conditions per place. [2025-03-15 02:53:38,705 INFO L140 encePairwiseOnDemand]: 248/255 looper letters, 1286 selfloop transitions, 23 changer transitions 81/1779 dead transitions. [2025-03-15 02:53:38,705 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 352 places, 1779 transitions, 57445 flow [2025-03-15 02:53:38,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-15 02:53:38,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-15 02:53:38,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 660 transitions. [2025-03-15 02:53:38,706 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8627450980392157 [2025-03-15 02:53:38,706 INFO L298 CegarLoopForPetriNet]: 256 programPoint places, 96 predicate places. [2025-03-15 02:53:38,706 INFO L471 AbstractCegarLoop]: Abstraction has has 352 places, 1779 transitions, 57445 flow [2025-03-15 02:53:38,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 205.0) internal successors, (615), 3 states have internal predecessors, (615), 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 02:53:38,707 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:53:38,707 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 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, 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, 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 02:53:38,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-03-15 02:53:38,707 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:53:38,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:53:38,708 INFO L85 PathProgramCache]: Analyzing trace with hash 3721112, now seen corresponding path program 1 times [2025-03-15 02:53:38,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:53:38,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568782096] [2025-03-15 02:53:38,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:53:38,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:53:38,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:53:38,762 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-15 02:53:38,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:53:38,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568782096] [2025-03-15 02:53:38,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568782096] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-15 02:53:38,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720288363] [2025-03-15 02:53:38,762 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:53:38,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 02:53:38,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 02:53:38,769 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-15 02:53:38,770 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-15 02:53:38,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:53:38,850 INFO L256 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-15 02:53:38,852 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-15 02:53:38,952 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-15 02:53:38,952 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-15 02:53:38,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1720288363] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:53:38,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-15 02:53:38,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2025-03-15 02:53:38,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112276997] [2025-03-15 02:53:38,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:53:38,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-15 02:53:38,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:53:38,953 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-15 02:53:38,953 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-15 02:53:38,953 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 255 [2025-03-15 02:53:38,954 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 352 places, 1779 transitions, 57445 flow. Second operand has 4 states, 4 states have (on average 204.75) internal successors, (819), 4 states have internal predecessors, (819), 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 02:53:38,954 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:53:38,954 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 255 [2025-03-15 02:53:38,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:53:56,331 INFO L124 PetriNetUnfolderBase]: 32374/59839 cut-off events. [2025-03-15 02:53:56,332 INFO L125 PetriNetUnfolderBase]: For 1298483/1395240 co-relation queries the response was YES. [2025-03-15 02:53:56,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 737945 conditions, 59839 events. 32374/59839 cut-off events. For 1298483/1395240 co-relation queries the response was YES. Maximal size of possible extension queue 1729. Compared 577942 event pairs, 6167 based on Foata normal form. 76/40150 useless extension candidates. Maximal degree in co-relation 279552. Up to 39392 conditions per place. [2025-03-15 02:53:57,645 INFO L140 encePairwiseOnDemand]: 252/255 looper letters, 1135 selfloop transitions, 23 changer transitions 81/1625 dead transitions. [2025-03-15 02:53:57,645 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 354 places, 1625 transitions, 54026 flow [2025-03-15 02:53:57,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-15 02:53:57,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-15 02:53:57,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 859 transitions. [2025-03-15 02:53:57,647 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.842156862745098 [2025-03-15 02:53:57,647 INFO L298 CegarLoopForPetriNet]: 256 programPoint places, 98 predicate places. [2025-03-15 02:53:57,647 INFO L471 AbstractCegarLoop]: Abstraction has has 354 places, 1625 transitions, 54026 flow [2025-03-15 02:53:57,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 204.75) internal successors, (819), 4 states have internal predecessors, (819), 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 02:53:57,648 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:53:57,648 INFO L221 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1] [2025-03-15 02:53:57,654 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-03-15 02:53:57,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 02:53:57,848 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:53:57,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:53:57,849 INFO L85 PathProgramCache]: Analyzing trace with hash 33703623, now seen corresponding path program 1 times [2025-03-15 02:53:57,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:53:57,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151472703] [2025-03-15 02:53:57,849 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:53:57,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:53:57,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:53:57,967 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:53:57,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:53:57,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151472703] [2025-03-15 02:53:57,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151472703] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-15 02:53:57,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1934063854] [2025-03-15 02:53:57,967 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:53:57,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 02:53:57,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 02:53:57,969 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-15 02:53:57,971 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-15 02:53:58,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:53:58,055 INFO L256 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-15 02:53:58,056 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-15 02:53:58,109 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:53:58,109 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-15 02:53:58,235 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:53:58,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1934063854] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-15 02:53:58,235 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-15 02:53:58,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2025-03-15 02:53:58,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264225161] [2025-03-15 02:53:58,235 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-15 02:53:58,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-03-15 02:53:58,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:53:58,236 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-03-15 02:53:58,236 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2025-03-15 02:53:58,237 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 255 [2025-03-15 02:53:58,240 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 354 places, 1625 transitions, 54026 flow. Second operand has 24 states, 24 states have (on average 183.375) internal successors, (4401), 24 states have internal predecessors, (4401), 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 02:53:58,240 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:53:58,240 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 255 [2025-03-15 02:53:58,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:54:14,961 INFO L124 PetriNetUnfolderBase]: 32379/59783 cut-off events. [2025-03-15 02:54:14,961 INFO L125 PetriNetUnfolderBase]: For 1426292/1537671 co-relation queries the response was YES. [2025-03-15 02:54:15,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 771639 conditions, 59783 events. 32379/59783 cut-off events. For 1426292/1537671 co-relation queries the response was YES. Maximal size of possible extension queue 1741. Compared 575699 event pairs, 6124 based on Foata normal form. 67/40219 useless extension candidates. Maximal degree in co-relation 292284. Up to 39379 conditions per place. [2025-03-15 02:54:16,540 INFO L140 encePairwiseOnDemand]: 242/255 looper letters, 1383 selfloop transitions, 167 changer transitions 81/1841 dead transitions. [2025-03-15 02:54:16,540 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 385 places, 1841 transitions, 60860 flow [2025-03-15 02:54:16,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2025-03-15 02:54:16,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2025-03-15 02:54:16,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 5993 transitions. [2025-03-15 02:54:16,543 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.734436274509804 [2025-03-15 02:54:16,544 INFO L298 CegarLoopForPetriNet]: 256 programPoint places, 129 predicate places. [2025-03-15 02:54:16,544 INFO L471 AbstractCegarLoop]: Abstraction has has 385 places, 1841 transitions, 60860 flow [2025-03-15 02:54:16,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 183.375) internal successors, (4401), 24 states have internal predecessors, (4401), 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 02:54:16,545 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:54:16,545 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 02:54:16,551 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-03-15 02:54:16,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 02:54:16,746 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:54:16,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:54:16,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1785136008, now seen corresponding path program 1 times [2025-03-15 02:54:16,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:54:16,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064896846] [2025-03-15 02:54:16,747 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:54:16,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:54:16,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:54:17,452 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:54:17,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:54:17,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064896846] [2025-03-15 02:54:17,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064896846] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-15 02:54:17,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [857781297] [2025-03-15 02:54:17,452 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:54:17,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 02:54:17,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 02:54:17,455 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-15 02:54:17,456 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-15 02:54:17,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:54:17,542 INFO L256 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-03-15 02:54:17,543 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-15 02:54:18,050 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:54:18,050 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-15 02:54:18,113 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-15 02:54:18,116 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 18 [2025-03-15 02:54:18,816 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:54:18,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [857781297] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-15 02:54:18,816 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-15 02:54:18,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 11, 11] total 36 [2025-03-15 02:54:18,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237777196] [2025-03-15 02:54:18,816 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-15 02:54:18,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2025-03-15 02:54:18,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:54:18,817 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2025-03-15 02:54:18,818 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=1153, Unknown=0, NotChecked=0, Total=1332 [2025-03-15 02:54:18,819 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 255 [2025-03-15 02:54:18,822 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 385 places, 1841 transitions, 60860 flow. Second operand has 37 states, 37 states have (on average 135.94594594594594) internal successors, (5030), 37 states have internal predecessors, (5030), 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 02:54:18,822 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:54:18,822 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 255 [2025-03-15 02:54:18,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand