/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/parallel-misc-5.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.empire2-owicki-f61efc6-m [2025-03-15 02:36:10,885 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-15 02:36:10,966 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 02:36:11,004 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-15 02:36:11,005 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-15 02:36:11,005 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-15 02:36:11,006 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-15 02:36:11,006 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-15 02:36:11,006 INFO L153 SettingsManager]: * Use SBE=true [2025-03-15 02:36:11,006 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-15 02:36:11,006 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-15 02:36:11,007 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-15 02:36:11,007 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-15 02:36:11,007 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-15 02:36:11,007 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-15 02:36:11,007 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-15 02:36:11,007 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-15 02:36:11,007 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-15 02:36:11,007 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-15 02:36:11,007 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-15 02:36:11,007 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-15 02:36:11,007 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-03-15 02:36:11,007 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-15 02:36:11,007 INFO L153 SettingsManager]: * To the following directory=./dump/ [2025-03-15 02:36:11,007 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-15 02:36:11,007 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-15 02:36:11,008 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-15 02:36:11,008 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-15 02:36:11,008 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-15 02:36:11,008 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-15 02:36:11,008 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-15 02:36:11,008 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-15 02:36:11,008 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 02:36:11,258 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-15 02:36:11,264 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-15 02:36:11,266 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-15 02:36:11,266 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-15 02:36:11,267 INFO L274 PluginConnector]: CDTParser initialized [2025-03-15 02:36:11,267 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-misc-5.wvr.c [2025-03-15 02:36:12,531 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42d5de6db/1fd0f69d478743578bc708be5db72fdd/FLAG1ef1f5953 [2025-03-15 02:36:12,734 INFO L384 CDTParser]: Found 1 translation units. [2025-03-15 02:36:12,734 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-5.wvr.c [2025-03-15 02:36:12,743 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42d5de6db/1fd0f69d478743578bc708be5db72fdd/FLAG1ef1f5953 [2025-03-15 02:36:12,759 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42d5de6db/1fd0f69d478743578bc708be5db72fdd [2025-03-15 02:36:12,762 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-15 02:36:12,763 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-03-15 02:36:12,764 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-15 02:36:12,764 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-15 02:36:12,768 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-15 02:36:12,768 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 02:36:12" (1/1) ... [2025-03-15 02:36:12,769 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a484853 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:36:12, skipping insertion in model container [2025-03-15 02:36:12,769 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 02:36:12" (1/1) ... [2025-03-15 02:36:12,784 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-15 02:36:12,916 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-15 02:36:12,923 INFO L200 MainTranslator]: Completed pre-run [2025-03-15 02:36:12,943 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-15 02:36:12,956 INFO L204 MainTranslator]: Completed translation [2025-03-15 02:36:12,956 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:36:12 WrapperNode [2025-03-15 02:36:12,956 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-15 02:36:12,957 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-15 02:36:12,957 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-15 02:36:12,957 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-15 02:36:12,962 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:36:12" (1/1) ... [2025-03-15 02:36:12,966 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:36:12" (1/1) ... [2025-03-15 02:36:12,984 INFO L138 Inliner]: procedures = 21, calls = 31, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 147 [2025-03-15 02:36:12,984 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-15 02:36:12,987 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-15 02:36:12,987 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-15 02:36:12,987 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-15 02:36:12,992 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:36:12" (1/1) ... [2025-03-15 02:36:12,992 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:36:12" (1/1) ... [2025-03-15 02:36:12,998 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:36:12" (1/1) ... [2025-03-15 02:36:12,998 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:36:12" (1/1) ... [2025-03-15 02:36:13,001 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:36:12" (1/1) ... [2025-03-15 02:36:13,002 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:36:12" (1/1) ... [2025-03-15 02:36:13,007 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:36:12" (1/1) ... [2025-03-15 02:36:13,008 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:36:12" (1/1) ... [2025-03-15 02:36:13,008 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:36:12" (1/1) ... [2025-03-15 02:36:13,009 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-15 02:36:13,013 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-03-15 02:36:13,013 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-03-15 02:36:13,013 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-03-15 02:36:13,017 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:36:12" (1/1) ... [2025-03-15 02:36:13,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-15 02:36:13,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 02:36:13,045 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 02:36:13,049 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 02:36:13,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-15 02:36:13,068 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-15 02:36:13,068 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-15 02:36:13,069 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-15 02:36:13,069 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-15 02:36:13,069 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-03-15 02:36:13,069 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-03-15 02:36:13,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-15 02:36:13,069 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-15 02:36:13,069 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-15 02:36:13,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-15 02:36:13,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-15 02:36:13,070 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 02:36:13,147 INFO L234 CfgBuilder]: Building ICFG [2025-03-15 02:36:13,148 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-15 02:36:13,346 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-15 02:36:13,346 INFO L283 CfgBuilder]: Performing block encoding [2025-03-15 02:36:13,474 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-15 02:36:13,474 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-15 02:36:13,475 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 02:36:13 BoogieIcfgContainer [2025-03-15 02:36:13,475 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-03-15 02:36:13,477 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-15 02:36:13,478 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-15 02:36:13,481 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-15 02:36:13,481 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 02:36:12" (1/3) ... [2025-03-15 02:36:13,481 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66afa158 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 02:36:13, skipping insertion in model container [2025-03-15 02:36:13,481 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:36:12" (2/3) ... [2025-03-15 02:36:13,482 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66afa158 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 02:36:13, skipping insertion in model container [2025-03-15 02:36:13,483 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 02:36:13" (3/3) ... [2025-03-15 02:36:13,483 INFO L128 eAbstractionObserver]: Analyzing ICFG parallel-misc-5.wvr.c [2025-03-15 02:36:13,495 INFO L303 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-15 02:36:13,497 INFO L169 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-misc-5.wvr.c that has 4 procedures, 117 locations, 1 initial locations, 2 loop locations, and 16 error locations. [2025-03-15 02:36:13,497 INFO L581 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-15 02:36:13,580 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-03-15 02:36:13,616 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-15 02:36:13,625 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;@42116599, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-15 02:36:13,626 INFO L334 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2025-03-15 02:36:13,662 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-15 02:36:13,663 INFO L124 PetriNetUnfolderBase]: 2/66 cut-off events. [2025-03-15 02:36:13,665 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-15 02:36:13,665 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:36:13,666 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] [2025-03-15 02:36:13,667 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2025-03-15 02:36:13,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:36:13,672 INFO L85 PathProgramCache]: Analyzing trace with hash -2067718523, now seen corresponding path program 1 times [2025-03-15 02:36:13,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:36:13,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464677497] [2025-03-15 02:36:13,677 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:36:13,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:36:13,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:36:13,951 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 02:36:13,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:36:13,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464677497] [2025-03-15 02:36:13,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464677497] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:36:13,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:36:13,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-15 02:36:13,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676401051] [2025-03-15 02:36:13,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:36:13,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-15 02:36:13,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:36:13,975 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-15 02:36:13,975 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-15 02:36:13,978 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 121 [2025-03-15 02:36:13,982 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 121 transitions, 263 flow. Second operand has 4 states, 4 states have (on average 86.25) internal successors, (345), 4 states have internal predecessors, (345), 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 02:36:13,982 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:36:13,982 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 121 [2025-03-15 02:36:13,983 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:36:14,256 INFO L124 PetriNetUnfolderBase]: 363/1113 cut-off events. [2025-03-15 02:36:14,256 INFO L125 PetriNetUnfolderBase]: For 126/126 co-relation queries the response was YES. [2025-03-15 02:36:14,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1863 conditions, 1113 events. 363/1113 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 9387 event pairs, 303 based on Foata normal form. 2/764 useless extension candidates. Maximal degree in co-relation 1682. Up to 578 conditions per place. [2025-03-15 02:36:14,273 INFO L140 encePairwiseOnDemand]: 112/121 looper letters, 25 selfloop transitions, 3 changer transitions 4/106 dead transitions. [2025-03-15 02:36:14,273 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 106 transitions, 290 flow [2025-03-15 02:36:14,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-15 02:36:14,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-15 02:36:14,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 372 transitions. [2025-03-15 02:36:14,283 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.768595041322314 [2025-03-15 02:36:14,285 INFO L298 CegarLoopForPetriNet]: 126 programPoint places, -11 predicate places. [2025-03-15 02:36:14,286 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 106 transitions, 290 flow [2025-03-15 02:36:14,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 86.25) internal successors, (345), 4 states have internal predecessors, (345), 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 02:36:14,286 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:36:14,286 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] [2025-03-15 02:36:14,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-15 02:36:14,286 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2025-03-15 02:36:14,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:36:14,287 INFO L85 PathProgramCache]: Analyzing trace with hash -2067718522, now seen corresponding path program 1 times [2025-03-15 02:36:14,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:36:14,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404099501] [2025-03-15 02:36:14,287 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:36:14,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:36:14,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:36:14,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:36:14,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:36:14,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404099501] [2025-03-15 02:36:14,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404099501] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:36:14,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:36:14,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-15 02:36:14,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536486145] [2025-03-15 02:36:14,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:36:14,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-15 02:36:14,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:36:14,510 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-15 02:36:14,510 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-15 02:36:14,511 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 121 [2025-03-15 02:36:14,512 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 106 transitions, 290 flow. Second operand has 5 states, 5 states have (on average 85.0) internal successors, (425), 5 states have internal predecessors, (425), 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 02:36:14,512 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:36:14,512 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 121 [2025-03-15 02:36:14,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:36:14,785 INFO L124 PetriNetUnfolderBase]: 844/1687 cut-off events. [2025-03-15 02:36:14,786 INFO L125 PetriNetUnfolderBase]: For 382/410 co-relation queries the response was YES. [2025-03-15 02:36:14,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4207 conditions, 1687 events. 844/1687 cut-off events. For 382/410 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 10573 event pairs, 106 based on Foata normal form. 0/948 useless extension candidates. Maximal degree in co-relation 3749. Up to 1136 conditions per place. [2025-03-15 02:36:14,799 INFO L140 encePairwiseOnDemand]: 104/121 looper letters, 32 selfloop transitions, 13 changer transitions 6/124 dead transitions. [2025-03-15 02:36:14,799 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 124 transitions, 477 flow [2025-03-15 02:36:14,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-15 02:36:14,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-15 02:36:14,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 469 transitions. [2025-03-15 02:36:14,802 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.775206611570248 [2025-03-15 02:36:14,802 INFO L298 CegarLoopForPetriNet]: 126 programPoint places, -7 predicate places. [2025-03-15 02:36:14,802 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 124 transitions, 477 flow [2025-03-15 02:36:14,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.0) internal successors, (425), 5 states have internal predecessors, (425), 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 02:36:14,805 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:36:14,805 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] [2025-03-15 02:36:14,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-15 02:36:14,805 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2025-03-15 02:36:14,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:36:14,806 INFO L85 PathProgramCache]: Analyzing trace with hash -2067718520, now seen corresponding path program 1 times [2025-03-15 02:36:14,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:36:14,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866693903] [2025-03-15 02:36:14,806 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:36:14,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:36:14,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:36:14,940 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 02:36:14,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:36:14,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866693903] [2025-03-15 02:36:14,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866693903] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:36:14,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:36:14,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-15 02:36:14,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62617862] [2025-03-15 02:36:14,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:36:14,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-15 02:36:14,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:36:14,941 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-15 02:36:14,941 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-15 02:36:14,942 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 121 [2025-03-15 02:36:14,942 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 124 transitions, 477 flow. Second operand has 5 states, 5 states have (on average 83.4) internal successors, (417), 5 states have internal predecessors, (417), 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 02:36:14,942 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:36:14,942 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 121 [2025-03-15 02:36:14,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:36:15,260 INFO L124 PetriNetUnfolderBase]: 1126/2178 cut-off events. [2025-03-15 02:36:15,260 INFO L125 PetriNetUnfolderBase]: For 819/851 co-relation queries the response was YES. [2025-03-15 02:36:15,267 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7101 conditions, 2178 events. 1126/2178 cut-off events. For 819/851 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 13752 event pairs, 46 based on Foata normal form. 0/1232 useless extension candidates. Maximal degree in co-relation 6616. Up to 1528 conditions per place. [2025-03-15 02:36:15,287 INFO L140 encePairwiseOnDemand]: 112/121 looper letters, 66 selfloop transitions, 9 changer transitions 10/156 dead transitions. [2025-03-15 02:36:15,287 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 156 transitions, 861 flow [2025-03-15 02:36:15,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-15 02:36:15,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-15 02:36:15,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 460 transitions. [2025-03-15 02:36:15,290 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7603305785123967 [2025-03-15 02:36:15,290 INFO L298 CegarLoopForPetriNet]: 126 programPoint places, -3 predicate places. [2025-03-15 02:36:15,290 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 156 transitions, 861 flow [2025-03-15 02:36:15,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 83.4) internal successors, (417), 5 states have internal predecessors, (417), 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 02:36:15,291 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:36:15,291 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] [2025-03-15 02:36:15,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-15 02:36:15,292 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2025-03-15 02:36:15,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:36:15,292 INFO L85 PathProgramCache]: Analyzing trace with hash -2067718521, now seen corresponding path program 1 times [2025-03-15 02:36:15,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:36:15,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261404974] [2025-03-15 02:36:15,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:36:15,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:36:15,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:36:15,357 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 02:36:15,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:36:15,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261404974] [2025-03-15 02:36:15,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261404974] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:36:15,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:36:15,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-15 02:36:15,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634464226] [2025-03-15 02:36:15,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:36:15,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-15 02:36:15,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:36:15,358 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-15 02:36:15,358 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-15 02:36:15,358 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 121 [2025-03-15 02:36:15,359 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 156 transitions, 861 flow. Second operand has 4 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 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 02:36:15,359 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:36:15,359 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 121 [2025-03-15 02:36:15,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:36:15,572 INFO L124 PetriNetUnfolderBase]: 972/1909 cut-off events. [2025-03-15 02:36:15,573 INFO L125 PetriNetUnfolderBase]: For 1181/1225 co-relation queries the response was YES. [2025-03-15 02:36:15,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7396 conditions, 1909 events. 972/1909 cut-off events. For 1181/1225 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 11623 event pairs, 44 based on Foata normal form. 0/1127 useless extension candidates. Maximal degree in co-relation 6852. Up to 1325 conditions per place. [2025-03-15 02:36:15,591 INFO L140 encePairwiseOnDemand]: 117/121 looper letters, 61 selfloop transitions, 3 changer transitions 10/152 dead transitions. [2025-03-15 02:36:15,591 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 152 transitions, 973 flow [2025-03-15 02:36:15,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-15 02:36:15,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-15 02:36:15,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 369 transitions. [2025-03-15 02:36:15,593 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.762396694214876 [2025-03-15 02:36:15,593 INFO L298 CegarLoopForPetriNet]: 126 programPoint places, -1 predicate places. [2025-03-15 02:36:15,594 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 152 transitions, 973 flow [2025-03-15 02:36:15,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 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 02:36:15,594 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:36:15,594 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] [2025-03-15 02:36:15,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-15 02:36:15,594 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2025-03-15 02:36:15,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:36:15,595 INFO L85 PathProgramCache]: Analyzing trace with hash -38960065, now seen corresponding path program 1 times [2025-03-15 02:36:15,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:36:15,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575350014] [2025-03-15 02:36:15,595 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:36:15,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:36:15,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:36:15,665 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 02:36:15,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:36:15,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575350014] [2025-03-15 02:36:15,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575350014] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:36:15,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:36:15,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-15 02:36:15,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250251217] [2025-03-15 02:36:15,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:36:15,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-15 02:36:15,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:36:15,667 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-15 02:36:15,667 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-15 02:36:15,668 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 121 [2025-03-15 02:36:15,668 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 152 transitions, 973 flow. Second operand has 4 states, 4 states have (on average 87.5) internal successors, (350), 4 states have internal predecessors, (350), 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 02:36:15,668 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:36:15,668 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 121 [2025-03-15 02:36:15,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:36:15,845 INFO L124 PetriNetUnfolderBase]: 842/1739 cut-off events. [2025-03-15 02:36:15,846 INFO L125 PetriNetUnfolderBase]: For 1689/1745 co-relation queries the response was YES. [2025-03-15 02:36:15,849 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7579 conditions, 1739 events. 842/1739 cut-off events. For 1689/1745 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 10617 event pairs, 44 based on Foata normal form. 0/1069 useless extension candidates. Maximal degree in co-relation 6998. Up to 1155 conditions per place. [2025-03-15 02:36:15,866 INFO L140 encePairwiseOnDemand]: 117/121 looper letters, 57 selfloop transitions, 3 changer transitions 10/148 dead transitions. [2025-03-15 02:36:15,866 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 148 transitions, 1069 flow [2025-03-15 02:36:15,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-15 02:36:15,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-15 02:36:15,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 368 transitions. [2025-03-15 02:36:15,869 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7603305785123967 [2025-03-15 02:36:15,869 INFO L298 CegarLoopForPetriNet]: 126 programPoint places, 1 predicate places. [2025-03-15 02:36:15,870 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 148 transitions, 1069 flow [2025-03-15 02:36:15,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.5) internal successors, (350), 4 states have internal predecessors, (350), 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 02:36:15,870 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:36:15,870 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] [2025-03-15 02:36:15,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-15 02:36:15,870 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2025-03-15 02:36:15,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:36:15,871 INFO L85 PathProgramCache]: Analyzing trace with hash -38960064, now seen corresponding path program 1 times [2025-03-15 02:36:15,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:36:15,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924857428] [2025-03-15 02:36:15,871 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:36:15,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:36:15,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:36:16,002 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 02:36:16,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:36:16,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924857428] [2025-03-15 02:36:16,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924857428] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:36:16,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:36:16,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-15 02:36:16,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396467210] [2025-03-15 02:36:16,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:36:16,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-15 02:36:16,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:36:16,003 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-15 02:36:16,003 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-15 02:36:16,004 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 121 [2025-03-15 02:36:16,004 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 148 transitions, 1069 flow. Second operand has 5 states, 5 states have (on average 86.2) internal successors, (431), 5 states have internal predecessors, (431), 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 02:36:16,004 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:36:16,004 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 121 [2025-03-15 02:36:16,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:36:16,218 INFO L124 PetriNetUnfolderBase]: 682/1481 cut-off events. [2025-03-15 02:36:16,218 INFO L125 PetriNetUnfolderBase]: For 2005/2069 co-relation queries the response was YES. [2025-03-15 02:36:16,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7350 conditions, 1481 events. 682/1481 cut-off events. For 2005/2069 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 8988 event pairs, 54 based on Foata normal form. 17/960 useless extension candidates. Maximal degree in co-relation 6964. Up to 984 conditions per place. [2025-03-15 02:36:16,234 INFO L140 encePairwiseOnDemand]: 110/121 looper letters, 62 selfloop transitions, 7 changer transitions 10/156 dead transitions. [2025-03-15 02:36:16,235 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 156 transitions, 1333 flow [2025-03-15 02:36:16,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-15 02:36:16,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-15 02:36:16,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 464 transitions. [2025-03-15 02:36:16,238 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7669421487603306 [2025-03-15 02:36:16,238 INFO L298 CegarLoopForPetriNet]: 126 programPoint places, 5 predicate places. [2025-03-15 02:36:16,238 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 156 transitions, 1333 flow [2025-03-15 02:36:16,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 86.2) internal successors, (431), 5 states have internal predecessors, (431), 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 02:36:16,239 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:36:16,239 INFO L221 CegarLoopForPetriNet]: trace histogram [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] [2025-03-15 02:36:16,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-15 02:36:16,239 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2025-03-15 02:36:16,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:36:16,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1137094442, now seen corresponding path program 1 times [2025-03-15 02:36:16,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:36:16,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154684686] [2025-03-15 02:36:16,242 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:36:16,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:36:16,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:36:16,342 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:36:16,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:36:16,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154684686] [2025-03-15 02:36:16,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154684686] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-15 02:36:16,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1729776563] [2025-03-15 02:36:16,343 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:36:16,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 02:36:16,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 02:36:16,345 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 02:36:16,347 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 02:36:16,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:36:16,401 INFO L256 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-15 02:36:16,405 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-15 02:36:16,502 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:36:16,502 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-15 02:36:16,590 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:36:16,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1729776563] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-15 02:36:16,591 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-15 02:36:16,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2025-03-15 02:36:16,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301261927] [2025-03-15 02:36:16,591 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-15 02:36:16,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-15 02:36:16,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:36:16,592 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-15 02:36:16,592 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2025-03-15 02:36:16,592 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 121 [2025-03-15 02:36:16,594 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 156 transitions, 1333 flow. Second operand has 13 states, 13 states have (on average 85.15384615384616) internal successors, (1107), 13 states have internal predecessors, (1107), 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 02:36:16,594 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:36:16,594 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 121 [2025-03-15 02:36:16,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:36:17,170 INFO L124 PetriNetUnfolderBase]: 1698/4240 cut-off events. [2025-03-15 02:36:17,170 INFO L125 PetriNetUnfolderBase]: For 9866/9908 co-relation queries the response was YES. [2025-03-15 02:36:17,179 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20603 conditions, 4240 events. 1698/4240 cut-off events. For 9866/9908 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 33671 event pairs, 32 based on Foata normal form. 0/2933 useless extension candidates. Maximal degree in co-relation 19632. Up to 2353 conditions per place. [2025-03-15 02:36:17,206 INFO L140 encePairwiseOnDemand]: 100/121 looper letters, 115 selfloop transitions, 81 changer transitions 36/305 dead transitions. [2025-03-15 02:36:17,206 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 305 transitions, 3998 flow [2025-03-15 02:36:17,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-15 02:36:17,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-03-15 02:36:17,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1032 transitions. [2025-03-15 02:36:17,209 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7753568745304282 [2025-03-15 02:36:17,209 INFO L298 CegarLoopForPetriNet]: 126 programPoint places, 15 predicate places. [2025-03-15 02:36:17,209 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 305 transitions, 3998 flow [2025-03-15 02:36:17,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 85.15384615384616) internal successors, (1107), 13 states have internal predecessors, (1107), 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 02:36:17,210 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:36:17,210 INFO L221 CegarLoopForPetriNet]: trace histogram [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] [2025-03-15 02:36:17,231 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 02:36:17,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 02:36:17,431 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2025-03-15 02:36:17,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:36:17,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1826316821, now seen corresponding path program 1 times [2025-03-15 02:36:17,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:36:17,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085280641] [2025-03-15 02:36:17,432 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:36:17,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:36:17,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:36:17,533 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-15 02:36:17,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:36:17,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085280641] [2025-03-15 02:36:17,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085280641] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:36:17,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:36:17,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-15 02:36:17,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563927243] [2025-03-15 02:36:17,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:36:17,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-15 02:36:17,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:36:17,535 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-15 02:36:17,535 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-15 02:36:17,535 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 121 [2025-03-15 02:36:17,536 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 305 transitions, 3998 flow. Second operand has 5 states, 5 states have (on average 83.8) internal successors, (419), 5 states have internal predecessors, (419), 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 02:36:17,536 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:36:17,536 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 121 [2025-03-15 02:36:17,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:36:18,169 INFO L124 PetriNetUnfolderBase]: 1912/5465 cut-off events. [2025-03-15 02:36:18,169 INFO L125 PetriNetUnfolderBase]: For 18350/18400 co-relation queries the response was YES. [2025-03-15 02:36:18,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27390 conditions, 5465 events. 1912/5465 cut-off events. For 18350/18400 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 49024 event pairs, 58 based on Foata normal form. 0/4003 useless extension candidates. Maximal degree in co-relation 25632. Up to 2762 conditions per place. [2025-03-15 02:36:18,215 INFO L140 encePairwiseOnDemand]: 113/121 looper letters, 293 selfloop transitions, 22 changer transitions 62/448 dead transitions. [2025-03-15 02:36:18,215 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 448 transitions, 7149 flow [2025-03-15 02:36:18,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-15 02:36:18,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-15 02:36:18,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 457 transitions. [2025-03-15 02:36:18,217 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7553719008264462 [2025-03-15 02:36:18,219 INFO L298 CegarLoopForPetriNet]: 126 programPoint places, 19 predicate places. [2025-03-15 02:36:18,219 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 448 transitions, 7149 flow [2025-03-15 02:36:18,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 83.8) internal successors, (419), 5 states have internal predecessors, (419), 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 02:36:18,219 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:36:18,220 INFO L221 CegarLoopForPetriNet]: trace histogram [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] [2025-03-15 02:36:18,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-15 02:36:18,220 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2025-03-15 02:36:18,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:36:18,221 INFO L85 PathProgramCache]: Analyzing trace with hash -340226050, now seen corresponding path program 1 times [2025-03-15 02:36:18,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:36:18,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88121687] [2025-03-15 02:36:18,221 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:36:18,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:36:18,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:36:18,399 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 02:36:18,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:36:18,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88121687] [2025-03-15 02:36:18,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88121687] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:36:18,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:36:18,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-15 02:36:18,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724204303] [2025-03-15 02:36:18,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:36:18,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-15 02:36:18,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:36:18,401 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-15 02:36:18,401 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2025-03-15 02:36:18,401 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 121 [2025-03-15 02:36:18,402 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 448 transitions, 7149 flow. Second operand has 6 states, 6 states have (on average 85.16666666666667) internal successors, (511), 6 states have internal predecessors, (511), 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 02:36:18,402 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:36:18,402 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 121 [2025-03-15 02:36:18,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:36:19,625 INFO L124 PetriNetUnfolderBase]: 3550/10275 cut-off events. [2025-03-15 02:36:19,625 INFO L125 PetriNetUnfolderBase]: For 45470/45528 co-relation queries the response was YES. [2025-03-15 02:36:19,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54783 conditions, 10275 events. 3550/10275 cut-off events. For 45470/45528 co-relation queries the response was YES. Maximal size of possible extension queue 433. Compared 104807 event pairs, 26 based on Foata normal form. 0/7557 useless extension candidates. Maximal degree in co-relation 51364. Up to 4981 conditions per place. [2025-03-15 02:36:19,752 INFO L140 encePairwiseOnDemand]: 102/121 looper letters, 425 selfloop transitions, 163 changer transitions 118/779 dead transitions. [2025-03-15 02:36:19,752 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 779 transitions, 14748 flow [2025-03-15 02:36:19,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-15 02:36:19,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-15 02:36:19,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 568 transitions. [2025-03-15 02:36:19,754 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7823691460055097 [2025-03-15 02:36:19,755 INFO L298 CegarLoopForPetriNet]: 126 programPoint places, 24 predicate places. [2025-03-15 02:36:19,755 INFO L471 AbstractCegarLoop]: Abstraction has has 150 places, 779 transitions, 14748 flow [2025-03-15 02:36:19,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 85.16666666666667) internal successors, (511), 6 states have internal predecessors, (511), 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 02:36:19,755 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:36:19,756 INFO L221 CegarLoopForPetriNet]: trace histogram [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] [2025-03-15 02:36:19,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-15 02:36:19,756 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2025-03-15 02:36:19,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:36:19,756 INFO L85 PathProgramCache]: Analyzing trace with hash -340226047, now seen corresponding path program 1 times [2025-03-15 02:36:19,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:36:19,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876418568] [2025-03-15 02:36:19,757 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:36:19,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:36:19,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:36:19,804 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 02:36:19,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:36:19,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876418568] [2025-03-15 02:36:19,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876418568] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:36:19,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:36:19,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-15 02:36:19,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352594182] [2025-03-15 02:36:19,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:36:19,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-15 02:36:19,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:36:19,805 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-15 02:36:19,805 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-15 02:36:19,805 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 121 [2025-03-15 02:36:19,806 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 779 transitions, 14748 flow. Second operand has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 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 02:36:19,806 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:36:19,806 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 121 [2025-03-15 02:36:19,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:36:20,913 INFO L124 PetriNetUnfolderBase]: 3167/9550 cut-off events. [2025-03-15 02:36:20,913 INFO L125 PetriNetUnfolderBase]: For 53622/53686 co-relation queries the response was YES. [2025-03-15 02:36:20,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53362 conditions, 9550 events. 3167/9550 cut-off events. For 53622/53686 co-relation queries the response was YES. Maximal size of possible extension queue 396. Compared 97602 event pairs, 26 based on Foata normal form. 0/7207 useless extension candidates. Maximal degree in co-relation 49698. Up to 4454 conditions per place. [2025-03-15 02:36:20,990 INFO L140 encePairwiseOnDemand]: 117/121 looper letters, 494 selfloop transitions, 20 changer transitions 118/754 dead transitions. [2025-03-15 02:36:20,991 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 754 transitions, 15508 flow [2025-03-15 02:36:20,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-15 02:36:20,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-15 02:36:20,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 303 transitions. [2025-03-15 02:36:20,992 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8347107438016529 [2025-03-15 02:36:20,992 INFO L298 CegarLoopForPetriNet]: 126 programPoint places, 25 predicate places. [2025-03-15 02:36:20,992 INFO L471 AbstractCegarLoop]: Abstraction has has 151 places, 754 transitions, 15508 flow [2025-03-15 02:36:20,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 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 02:36:20,992 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:36:20,993 INFO L221 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 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] [2025-03-15 02:36:20,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-15 02:36:20,993 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2025-03-15 02:36:20,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:36:20,993 INFO L85 PathProgramCache]: Analyzing trace with hash -475375313, now seen corresponding path program 1 times [2025-03-15 02:36:20,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:36:20,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156090453] [2025-03-15 02:36:20,993 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:36:20,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:36:21,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:36:21,043 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-03-15 02:36:21,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:36:21,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156090453] [2025-03-15 02:36:21,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156090453] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:36:21,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:36:21,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-15 02:36:21,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962927739] [2025-03-15 02:36:21,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:36:21,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-15 02:36:21,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:36:21,044 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-15 02:36:21,044 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-15 02:36:21,044 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 121 [2025-03-15 02:36:21,045 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 754 transitions, 15508 flow. Second operand has 4 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 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 02:36:21,045 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:36:21,045 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 121 [2025-03-15 02:36:21,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:36:22,218 INFO L124 PetriNetUnfolderBase]: 2868/8951 cut-off events. [2025-03-15 02:36:22,218 INFO L125 PetriNetUnfolderBase]: For 62884/62954 co-relation queries the response was YES. [2025-03-15 02:36:22,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52453 conditions, 8951 events. 2868/8951 cut-off events. For 62884/62954 co-relation queries the response was YES. Maximal size of possible extension queue 364. Compared 91304 event pairs, 26 based on Foata normal form. 0/6905 useless extension candidates. Maximal degree in co-relation 48540. Up to 4053 conditions per place. [2025-03-15 02:36:22,299 INFO L140 encePairwiseOnDemand]: 117/121 looper letters, 490 selfloop transitions, 3 changer transitions 118/729 dead transitions. [2025-03-15 02:36:22,300 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 729 transitions, 16176 flow [2025-03-15 02:36:22,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-15 02:36:22,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-15 02:36:22,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 366 transitions. [2025-03-15 02:36:22,301 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.756198347107438 [2025-03-15 02:36:22,301 INFO L298 CegarLoopForPetriNet]: 126 programPoint places, 27 predicate places. [2025-03-15 02:36:22,301 INFO L471 AbstractCegarLoop]: Abstraction has has 153 places, 729 transitions, 16176 flow [2025-03-15 02:36:22,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 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 02:36:22,302 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:36:22,302 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] [2025-03-15 02:36:22,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-15 02:36:22,302 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2025-03-15 02:36:22,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:36:22,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1266676536, now seen corresponding path program 1 times [2025-03-15 02:36:22,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:36:22,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686808894] [2025-03-15 02:36:22,303 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:36:22,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:36:22,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:36:22,366 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:36:22,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:36:22,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686808894] [2025-03-15 02:36:22,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686808894] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:36:22,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:36:22,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-15 02:36:22,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153987893] [2025-03-15 02:36:22,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:36:22,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-15 02:36:22,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:36:22,367 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-15 02:36:22,367 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-03-15 02:36:22,368 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 121 [2025-03-15 02:36:22,368 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 729 transitions, 16176 flow. Second operand has 5 states, 5 states have (on average 90.8) internal successors, (454), 5 states have internal predecessors, (454), 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 02:36:22,368 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:36:22,368 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 121 [2025-03-15 02:36:22,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:36:24,486 INFO L124 PetriNetUnfolderBase]: 4284/14103 cut-off events. [2025-03-15 02:36:24,486 INFO L125 PetriNetUnfolderBase]: For 123362/123440 co-relation queries the response was YES. [2025-03-15 02:36:24,515 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84711 conditions, 14103 events. 4284/14103 cut-off events. For 123362/123440 co-relation queries the response was YES. Maximal size of possible extension queue 546. Compared 154396 event pairs, 42 based on Foata normal form. 0/10966 useless extension candidates. Maximal degree in co-relation 78651. Up to 6020 conditions per place. [2025-03-15 02:36:24,608 INFO L140 encePairwiseOnDemand]: 107/121 looper letters, 443 selfloop transitions, 329 changer transitions 174/1024 dead transitions. [2025-03-15 02:36:24,608 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 1024 transitions, 25291 flow [2025-03-15 02:36:24,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-15 02:36:24,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-15 02:36:24,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 512 transitions. [2025-03-15 02:36:24,609 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8462809917355372 [2025-03-15 02:36:24,609 INFO L298 CegarLoopForPetriNet]: 126 programPoint places, 31 predicate places. [2025-03-15 02:36:24,610 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 1024 transitions, 25291 flow [2025-03-15 02:36:24,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 90.8) internal successors, (454), 5 states have internal predecessors, (454), 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 02:36:24,610 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:36:24,610 INFO L221 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 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] [2025-03-15 02:36:24,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-15 02:36:24,610 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2025-03-15 02:36:24,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:36:24,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1721057231, now seen corresponding path program 1 times [2025-03-15 02:36:24,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:36:24,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206652695] [2025-03-15 02:36:24,613 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:36:24,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:36:24,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:36:24,699 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-03-15 02:36:24,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:36:24,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206652695] [2025-03-15 02:36:24,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206652695] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:36:24,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:36:24,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-15 02:36:24,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463127377] [2025-03-15 02:36:24,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:36:24,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-15 02:36:24,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:36:24,700 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-15 02:36:24,700 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-15 02:36:24,700 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 121 [2025-03-15 02:36:24,700 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 1024 transitions, 25291 flow. Second operand has 5 states, 5 states have (on average 86.6) internal successors, (433), 5 states have internal predecessors, (433), 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 02:36:24,701 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:36:24,701 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 121 [2025-03-15 02:36:24,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:36:26,447 INFO L124 PetriNetUnfolderBase]: 4253/14727 cut-off events. [2025-03-15 02:36:26,448 INFO L125 PetriNetUnfolderBase]: For 156117/156201 co-relation queries the response was YES. [2025-03-15 02:36:26,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91885 conditions, 14727 events. 4253/14727 cut-off events. For 156117/156201 co-relation queries the response was YES. Maximal size of possible extension queue 602. Compared 165825 event pairs, 48 based on Foata normal form. 84/11627 useless extension candidates. Maximal degree in co-relation 84400. Up to 6128 conditions per place. [2025-03-15 02:36:26,736 INFO L140 encePairwiseOnDemand]: 111/121 looper letters, 803 selfloop transitions, 29 changer transitions 216/1186 dead transitions. [2025-03-15 02:36:26,737 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 1186 transitions, 31846 flow [2025-03-15 02:36:26,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-15 02:36:26,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-15 02:36:26,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 462 transitions. [2025-03-15 02:36:26,738 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7636363636363637 [2025-03-15 02:36:26,738 INFO L298 CegarLoopForPetriNet]: 126 programPoint places, 35 predicate places. [2025-03-15 02:36:26,738 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 1186 transitions, 31846 flow [2025-03-15 02:36:26,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 86.6) internal successors, (433), 5 states have internal predecessors, (433), 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 02:36:26,739 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:36:26,739 INFO L221 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 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] [2025-03-15 02:36:26,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-15 02:36:26,739 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2025-03-15 02:36:26,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:36:26,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1940311222, now seen corresponding path program 1 times [2025-03-15 02:36:26,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:36:26,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880199025] [2025-03-15 02:36:26,739 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:36:26,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:36:26,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:36:26,883 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:36:26,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:36:26,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880199025] [2025-03-15 02:36:26,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880199025] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-15 02:36:26,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1924627663] [2025-03-15 02:36:26,884 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:36:26,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 02:36:26,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 02:36:26,886 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 02:36:26,887 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 02:36:26,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:36:26,938 INFO L256 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-15 02:36:26,940 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-15 02:36:27,053 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-15 02:36:27,053 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-15 02:36:27,159 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-15 02:36:27,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1924627663] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-15 02:36:27,159 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-15 02:36:27,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2025-03-15 02:36:27,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219353235] [2025-03-15 02:36:27,160 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-15 02:36:27,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-15 02:36:27,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:36:27,160 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-15 02:36:27,162 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2025-03-15 02:36:27,162 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 121 [2025-03-15 02:36:27,163 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 1186 transitions, 31846 flow. Second operand has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 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 02:36:27,163 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:36:27,163 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 121 [2025-03-15 02:36:27,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:36:34,973 INFO L124 PetriNetUnfolderBase]: 13294/46882 cut-off events. [2025-03-15 02:36:34,973 INFO L125 PetriNetUnfolderBase]: For 585945/586011 co-relation queries the response was YES. [2025-03-15 02:36:35,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 303531 conditions, 46882 events. 13294/46882 cut-off events. For 585945/586011 co-relation queries the response was YES. Maximal size of possible extension queue 1502. Compared 631483 event pairs, 142 based on Foata normal form. 386/37193 useless extension candidates. Maximal degree in co-relation 281134. Up to 18884 conditions per place. [2025-03-15 02:36:35,677 INFO L140 encePairwiseOnDemand]: 102/121 looper letters, 2319 selfloop transitions, 1050 changer transitions 712/4152 dead transitions. [2025-03-15 02:36:35,677 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 4152 transitions, 122154 flow [2025-03-15 02:36:35,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-03-15 02:36:35,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2025-03-15 02:36:35,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1787 transitions. [2025-03-15 02:36:35,680 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7772944758590692 [2025-03-15 02:36:35,680 INFO L298 CegarLoopForPetriNet]: 126 programPoint places, 53 predicate places. [2025-03-15 02:36:35,681 INFO L471 AbstractCegarLoop]: Abstraction has has 179 places, 4152 transitions, 122154 flow [2025-03-15 02:36:35,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 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 02:36:35,681 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:36:35,681 INFO L221 CegarLoopForPetriNet]: trace histogram [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] [2025-03-15 02:36:35,687 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-15 02:36:35,881 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,SelfDestructingSolverStorable13 [2025-03-15 02:36:35,882 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2025-03-15 02:36:35,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:36:35,882 INFO L85 PathProgramCache]: Analyzing trace with hash -868547474, now seen corresponding path program 1 times [2025-03-15 02:36:35,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:36:35,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986721441] [2025-03-15 02:36:35,883 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:36:35,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:36:35,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:36:36,001 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-03-15 02:36:36,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:36:36,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986721441] [2025-03-15 02:36:36,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986721441] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:36:36,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:36:36,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-15 02:36:36,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433154974] [2025-03-15 02:36:36,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:36:36,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-15 02:36:36,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:36:36,003 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-15 02:36:36,003 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-15 02:36:36,003 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 121 [2025-03-15 02:36:36,004 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 4152 transitions, 122154 flow. Second operand has 6 states, 6 states have (on average 86.33333333333333) internal successors, (518), 6 states have internal predecessors, (518), 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 02:36:36,004 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:36:36,004 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 121 [2025-03-15 02:36:36,004 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:36:53,180 INFO L124 PetriNetUnfolderBase]: 14373/51051 cut-off events. [2025-03-15 02:36:53,181 INFO L125 PetriNetUnfolderBase]: For 709167/709237 co-relation queries the response was YES. [2025-03-15 02:36:53,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 347282 conditions, 51051 events. 14373/51051 cut-off events. For 709167/709237 co-relation queries the response was YES. Maximal size of possible extension queue 1603. Compared 690523 event pairs, 148 based on Foata normal form. 238/39955 useless extension candidates. Maximal degree in co-relation 323555. Up to 20460 conditions per place. [2025-03-15 02:36:53,836 INFO L140 encePairwiseOnDemand]: 111/121 looper letters, 3201 selfloop transitions, 207 changer transitions 728/4573 dead transitions. [2025-03-15 02:36:53,836 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 4573 transitions, 143957 flow [2025-03-15 02:36:53,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-15 02:36:53,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-15 02:36:53,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 561 transitions. [2025-03-15 02:36:53,837 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7727272727272727 [2025-03-15 02:36:53,838 INFO L298 CegarLoopForPetriNet]: 126 programPoint places, 58 predicate places. [2025-03-15 02:36:53,838 INFO L471 AbstractCegarLoop]: Abstraction has has 184 places, 4573 transitions, 143957 flow [2025-03-15 02:36:53,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 86.33333333333333) internal successors, (518), 6 states have internal predecessors, (518), 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 02:36:53,838 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:36:53,838 INFO L221 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 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] [2025-03-15 02:36:53,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-15 02:36:53,838 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2025-03-15 02:36:53,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:36:53,839 INFO L85 PathProgramCache]: Analyzing trace with hash -168198778, now seen corresponding path program 2 times [2025-03-15 02:36:53,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:36:53,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609092223] [2025-03-15 02:36:53,839 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-15 02:36:53,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:36:53,848 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-15 02:36:53,848 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-15 02:36:53,947 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:36:53,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:36:53,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609092223] [2025-03-15 02:36:53,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609092223] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-15 02:36:53,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1737934452] [2025-03-15 02:36:53,948 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-15 02:36:53,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 02:36:53,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 02:36:53,950 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 02:36:53,951 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 02:36:54,001 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-15 02:36:54,001 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-15 02:36:54,002 INFO L256 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-15 02:36:54,004 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-15 02:36:54,087 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:36:54,087 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-15 02:36:54,354 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:36:54,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1737934452] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-15 02:36:54,355 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-15 02:36:54,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 18 [2025-03-15 02:36:54,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495734720] [2025-03-15 02:36:54,355 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-15 02:36:54,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-03-15 02:36:54,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:36:54,358 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-03-15 02:36:54,358 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2025-03-15 02:36:54,358 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 121 [2025-03-15 02:36:54,360 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 4573 transitions, 143957 flow. Second operand has 19 states, 19 states have (on average 84.78947368421052) internal successors, (1611), 19 states have internal predecessors, (1611), 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 02:36:54,360 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:36:54,360 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 121 [2025-03-15 02:36:54,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:37:57,123 INFO L124 PetriNetUnfolderBase]: 37773/149756 cut-off events. [2025-03-15 02:37:57,124 INFO L125 PetriNetUnfolderBase]: For 2533563/2533639 co-relation queries the response was YES. [2025-03-15 02:37:57,851 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1004014 conditions, 149756 events. 37773/149756 cut-off events. For 2533563/2533639 co-relation queries the response was YES. Maximal size of possible extension queue 3478. Compared 2385229 event pairs, 166 based on Foata normal form. 0/124020 useless extension candidates. Maximal degree in co-relation 908792. Up to 55311 conditions per place. [2025-03-15 02:37:59,236 INFO L140 encePairwiseOnDemand]: 102/121 looper letters, 5934 selfloop transitions, 5502 changer transitions 2794/14303 dead transitions. [2025-03-15 02:37:59,236 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 14303 transitions, 483904 flow [2025-03-15 02:37:59,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-15 02:37:59,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2025-03-15 02:37:59,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1619 transitions. [2025-03-15 02:37:59,239 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7870685464268352 [2025-03-15 02:37:59,239 INFO L298 CegarLoopForPetriNet]: 126 programPoint places, 74 predicate places. [2025-03-15 02:37:59,239 INFO L471 AbstractCegarLoop]: Abstraction has has 200 places, 14303 transitions, 483904 flow [2025-03-15 02:37:59,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 84.78947368421052) internal successors, (1611), 19 states have internal predecessors, (1611), 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 02:37:59,240 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:37:59,240 INFO L221 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 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] [2025-03-15 02:37:59,246 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-15 02:37:59,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 02:37:59,444 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2025-03-15 02:37:59,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:37:59,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1811844314, now seen corresponding path program 2 times [2025-03-15 02:37:59,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:37:59,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207952863] [2025-03-15 02:37:59,445 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-15 02:37:59,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:37:59,456 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-15 02:37:59,456 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-15 02:37:59,538 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-03-15 02:37:59,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:37:59,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207952863] [2025-03-15 02:37:59,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207952863] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-15 02:37:59,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [380136988] [2025-03-15 02:37:59,539 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-15 02:37:59,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 02:37:59,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 02:37:59,541 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 02:37:59,542 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 02:37:59,585 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-15 02:37:59,586 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-15 02:37:59,586 INFO L256 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-15 02:37:59,588 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-15 02:37:59,677 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-03-15 02:37:59,677 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-15 02:37:59,759 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-03-15 02:37:59,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [380136988] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-15 02:37:59,760 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-15 02:37:59,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2025-03-15 02:37:59,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740055514] [2025-03-15 02:37:59,760 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-15 02:37:59,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-03-15 02:37:59,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:37:59,761 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-03-15 02:37:59,761 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2025-03-15 02:37:59,761 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 121 [2025-03-15 02:37:59,763 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 14303 transitions, 483904 flow. Second operand has 15 states, 15 states have (on average 86.6) internal successors, (1299), 15 states have internal predecessors, (1299), 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 02:37:59,763 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:37:59,763 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 121 [2025-03-15 02:37:59,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand