/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg true --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/weaver/parallel-misc-1.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-30 09:02:05,579 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-30 09:02:05,644 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 [2023-11-30 09:02:05,667 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-30 09:02:05,668 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-30 09:02:05,668 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-30 09:02:05,668 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-30 09:02:05,669 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-30 09:02:05,669 INFO L153 SettingsManager]: * Use SBE=true [2023-11-30 09:02:05,672 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-30 09:02:05,673 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-30 09:02:05,673 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-30 09:02:05,673 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-30 09:02:05,674 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-30 09:02:05,674 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-30 09:02:05,674 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-30 09:02:05,674 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-30 09:02:05,674 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-30 09:02:05,675 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-30 09:02:05,675 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-30 09:02:05,675 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-30 09:02:05,675 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-30 09:02:05,676 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-30 09:02:05,676 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-30 09:02:05,676 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-30 09:02:05,676 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 09:02:05,676 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-30 09:02:05,676 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-30 09:02:05,677 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-30 09:02:05,677 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-30 09:02:05,677 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-30 09:02:05,678 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-30 09:02:05,678 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-30 09:02:05,678 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-11-30 09:02:05,862 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-30 09:02:05,880 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-30 09:02:05,882 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-30 09:02:05,882 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-30 09:02:05,883 INFO L274 PluginConnector]: CDTParser initialized [2023-11-30 09:02:05,883 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-misc-1.wvr.c [2023-11-30 09:02:06,842 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-30 09:02:07,003 INFO L384 CDTParser]: Found 1 translation units. [2023-11-30 09:02:07,003 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-1.wvr.c [2023-11-30 09:02:07,008 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38377feef/d8d733101b9b4f15985eb9141ff7a84b/FLAG21a3f5569 [2023-11-30 09:02:07,016 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38377feef/d8d733101b9b4f15985eb9141ff7a84b [2023-11-30 09:02:07,018 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-30 09:02:07,019 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-30 09:02:07,019 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-30 09:02:07,020 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-30 09:02:07,022 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-30 09:02:07,023 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 09:02:07" (1/1) ... [2023-11-30 09:02:07,023 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61504300 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:02:07, skipping insertion in model container [2023-11-30 09:02:07,023 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 09:02:07" (1/1) ... [2023-11-30 09:02:07,042 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-30 09:02:07,181 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 09:02:07,187 INFO L202 MainTranslator]: Completed pre-run [2023-11-30 09:02:07,204 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 09:02:07,212 INFO L206 MainTranslator]: Completed translation [2023-11-30 09:02:07,213 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:02:07 WrapperNode [2023-11-30 09:02:07,213 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-30 09:02:07,214 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-30 09:02:07,214 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-30 09:02:07,214 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-30 09:02:07,218 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:02:07" (1/1) ... [2023-11-30 09:02:07,224 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:02:07" (1/1) ... [2023-11-30 09:02:07,249 INFO L138 Inliner]: procedures = 23, calls = 42, calls flagged for inlining = 18, calls inlined = 32, statements flattened = 409 [2023-11-30 09:02:07,250 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-30 09:02:07,250 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-30 09:02:07,250 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-30 09:02:07,250 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-30 09:02:07,256 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:02:07" (1/1) ... [2023-11-30 09:02:07,257 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:02:07" (1/1) ... [2023-11-30 09:02:07,260 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:02:07" (1/1) ... [2023-11-30 09:02:07,260 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:02:07" (1/1) ... [2023-11-30 09:02:07,267 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:02:07" (1/1) ... [2023-11-30 09:02:07,279 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:02:07" (1/1) ... [2023-11-30 09:02:07,281 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:02:07" (1/1) ... [2023-11-30 09:02:07,282 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:02:07" (1/1) ... [2023-11-30 09:02:07,285 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-30 09:02:07,286 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-30 09:02:07,286 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-30 09:02:07,286 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-30 09:02:07,286 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:02:07" (1/1) ... [2023-11-30 09:02:07,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 09:02:07,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:02:07,341 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) [2023-11-30 09:02:07,373 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 [2023-11-30 09:02:07,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-30 09:02:07,378 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-30 09:02:07,378 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-30 09:02:07,378 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-30 09:02:07,378 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-30 09:02:07,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-30 09:02:07,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-30 09:02:07,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-30 09:02:07,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-30 09:02:07,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-30 09:02:07,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-30 09:02:07,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-30 09:02:07,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-30 09:02:07,380 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-30 09:02:07,487 INFO L241 CfgBuilder]: Building ICFG [2023-11-30 09:02:07,489 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-30 09:02:07,927 INFO L282 CfgBuilder]: Performing block encoding [2023-11-30 09:02:07,951 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-30 09:02:07,951 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-30 09:02:07,953 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 09:02:07 BoogieIcfgContainer [2023-11-30 09:02:07,953 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-30 09:02:07,954 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-30 09:02:07,954 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-30 09:02:07,956 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-30 09:02:07,956 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 09:02:07" (1/3) ... [2023-11-30 09:02:07,957 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e5bad02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 09:02:07, skipping insertion in model container [2023-11-30 09:02:07,957 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:02:07" (2/3) ... [2023-11-30 09:02:07,957 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e5bad02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 09:02:07, skipping insertion in model container [2023-11-30 09:02:07,957 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 09:02:07" (3/3) ... [2023-11-30 09:02:07,958 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-misc-1.wvr.c [2023-11-30 09:02:07,972 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-30 09:02:07,972 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 54 error locations. [2023-11-30 09:02:07,972 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-30 09:02:08,092 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-30 09:02:08,130 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 558 places, 595 transitions, 1204 flow [2023-11-30 09:02:08,289 INFO L124 PetriNetUnfolderBase]: 44/593 cut-off events. [2023-11-30 09:02:08,289 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-30 09:02:08,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 602 conditions, 593 events. 44/593 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1849 event pairs, 0 based on Foata normal form. 0/495 useless extension candidates. Maximal degree in co-relation 457. Up to 2 conditions per place. [2023-11-30 09:02:08,307 INFO L82 GeneralOperation]: Start removeDead. Operand has 558 places, 595 transitions, 1204 flow [2023-11-30 09:02:08,320 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 535 places, 571 transitions, 1151 flow [2023-11-30 09:02:08,332 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 09:02:08,337 INFO L362 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@59c5e23b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 09:02:08,338 INFO L363 AbstractCegarLoop]: Starting to check reachability of 108 error locations. [2023-11-30 09:02:08,350 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 09:02:08,350 INFO L124 PetriNetUnfolderBase]: 3/93 cut-off events. [2023-11-30 09:02:08,350 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 09:02:08,350 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:02:08,351 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:02:08,352 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err20ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (and 105 more)] === [2023-11-30 09:02:08,356 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:02:08,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1995313530, now seen corresponding path program 1 times [2023-11-30 09:02:08,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:02:08,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921070225] [2023-11-30 09:02:08,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:02:08,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:02:08,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:02:08,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:02:08,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:02:08,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921070225] [2023-11-30 09:02:08,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921070225] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:02:08,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 09:02:08,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 09:02:08,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477856716] [2023-11-30 09:02:08,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:02:08,583 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 09:02:08,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:02:08,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 09:02:08,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 09:02:08,611 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 553 out of 595 [2023-11-30 09:02:08,616 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 535 places, 571 transitions, 1151 flow. Second operand has 4 states, 4 states have (on average 554.5) internal successors, (2218), 4 states have internal predecessors, (2218), 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) [2023-11-30 09:02:08,617 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:02:08,617 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 553 of 595 [2023-11-30 09:02:08,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:02:08,754 INFO L124 PetriNetUnfolderBase]: 22/561 cut-off events. [2023-11-30 09:02:08,755 INFO L125 PetriNetUnfolderBase]: For 6/7 co-relation queries the response was YES. [2023-11-30 09:02:08,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 596 conditions, 561 events. 22/561 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1766 event pairs, 0 based on Foata normal form. 27/493 useless extension candidates. Maximal degree in co-relation 440. Up to 19 conditions per place. [2023-11-30 09:02:08,765 INFO L140 encePairwiseOnDemand]: 566/595 looper letters, 21 selfloop transitions, 5 changer transitions 3/558 dead transitions. [2023-11-30 09:02:08,765 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 539 places, 558 transitions, 1177 flow [2023-11-30 09:02:08,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 09:02:08,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 09:02:08,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2816 transitions. [2023-11-30 09:02:08,783 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9465546218487395 [2023-11-30 09:02:08,783 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2816 transitions. [2023-11-30 09:02:08,784 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2816 transitions. [2023-11-30 09:02:08,787 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:02:08,788 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2816 transitions. [2023-11-30 09:02:08,795 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 563.2) internal successors, (2816), 5 states have internal predecessors, (2816), 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) [2023-11-30 09:02:08,802 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 595.0) internal successors, (3570), 6 states have internal predecessors, (3570), 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) [2023-11-30 09:02:08,804 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 595.0) internal successors, (3570), 6 states have internal predecessors, (3570), 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) [2023-11-30 09:02:08,807 INFO L307 CegarLoopForPetriNet]: 535 programPoint places, 4 predicate places. [2023-11-30 09:02:08,807 INFO L500 AbstractCegarLoop]: Abstraction has has 539 places, 558 transitions, 1177 flow [2023-11-30 09:02:08,809 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 554.5) internal successors, (2218), 4 states have internal predecessors, (2218), 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) [2023-11-30 09:02:08,809 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:02:08,809 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:02:08,809 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-30 09:02:08,809 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err20ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (and 105 more)] === [2023-11-30 09:02:08,810 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:02:08,810 INFO L85 PathProgramCache]: Analyzing trace with hash -176016919, now seen corresponding path program 1 times [2023-11-30 09:02:08,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:02:08,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964841785] [2023-11-30 09:02:08,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:02:08,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:02:08,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:02:08,999 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:02:08,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:02:08,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964841785] [2023-11-30 09:02:09,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964841785] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 09:02:09,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [574097346] [2023-11-30 09:02:09,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:02:09,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:02:09,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:02:09,002 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) [2023-11-30 09:02:09,039 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-30 09:02:09,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:02:09,089 INFO L262 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-30 09:02:09,093 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:02:09,175 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:02:09,176 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 09:02:09,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [574097346] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:02:09,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 09:02:09,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-30 09:02:09,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492679471] [2023-11-30 09:02:09,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:02:09,177 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 09:02:09,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:02:09,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 09:02:09,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-30 09:02:09,182 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 553 out of 595 [2023-11-30 09:02:09,185 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 539 places, 558 transitions, 1177 flow. Second operand has 6 states, 6 states have (on average 555.1666666666666) internal successors, (3331), 6 states have internal predecessors, (3331), 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) [2023-11-30 09:02:09,185 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:02:09,185 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 553 of 595 [2023-11-30 09:02:09,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:02:09,393 INFO L124 PetriNetUnfolderBase]: 22/560 cut-off events. [2023-11-30 09:02:09,393 INFO L125 PetriNetUnfolderBase]: For 22/25 co-relation queries the response was YES. [2023-11-30 09:02:09,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 620 conditions, 560 events. 22/560 cut-off events. For 22/25 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1767 event pairs, 0 based on Foata normal form. 0/466 useless extension candidates. Maximal degree in co-relation 441. Up to 18 conditions per place. [2023-11-30 09:02:09,403 INFO L140 encePairwiseOnDemand]: 589/595 looper letters, 17 selfloop transitions, 8 changer transitions 3/557 dead transitions. [2023-11-30 09:02:09,404 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 544 places, 557 transitions, 1223 flow [2023-11-30 09:02:09,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 09:02:09,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 09:02:09,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 3897 transitions. [2023-11-30 09:02:09,409 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9356542617046819 [2023-11-30 09:02:09,409 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 3897 transitions. [2023-11-30 09:02:09,409 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 3897 transitions. [2023-11-30 09:02:09,411 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:02:09,411 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 3897 transitions. [2023-11-30 09:02:09,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 556.7142857142857) internal successors, (3897), 7 states have internal predecessors, (3897), 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) [2023-11-30 09:02:09,422 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 595.0) internal successors, (4760), 8 states have internal predecessors, (4760), 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) [2023-11-30 09:02:09,424 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 595.0) internal successors, (4760), 8 states have internal predecessors, (4760), 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) [2023-11-30 09:02:09,425 INFO L307 CegarLoopForPetriNet]: 535 programPoint places, 9 predicate places. [2023-11-30 09:02:09,425 INFO L500 AbstractCegarLoop]: Abstraction has has 544 places, 557 transitions, 1223 flow [2023-11-30 09:02:09,426 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 555.1666666666666) internal successors, (3331), 6 states have internal predecessors, (3331), 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) [2023-11-30 09:02:09,427 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:02:09,427 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:02:09,447 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-30 09:02:09,632 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:02:09,633 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err20ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (and 105 more)] === [2023-11-30 09:02:09,634 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:02:09,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1161555919, now seen corresponding path program 1 times [2023-11-30 09:02:09,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:02:09,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928907738] [2023-11-30 09:02:09,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:02:09,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:02:09,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:02:09,747 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:02:09,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:02:09,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928907738] [2023-11-30 09:02:09,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928907738] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 09:02:09,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1752905745] [2023-11-30 09:02:09,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:02:09,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:02:09,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:02:09,759 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) [2023-11-30 09:02:09,798 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-30 09:02:09,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:02:09,848 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-30 09:02:09,850 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:02:09,881 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:02:09,882 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 09:02:09,927 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:02:09,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1752905745] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 09:02:09,928 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 09:02:09,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-11-30 09:02:09,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303259285] [2023-11-30 09:02:09,928 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 09:02:09,928 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-30 09:02:09,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:02:09,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-30 09:02:09,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-11-30 09:02:09,934 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 553 out of 595 [2023-11-30 09:02:09,938 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 544 places, 557 transitions, 1223 flow. Second operand has 12 states, 12 states have (on average 555.8333333333334) internal successors, (6670), 12 states have internal predecessors, (6670), 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) [2023-11-30 09:02:09,938 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:02:09,939 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 553 of 595 [2023-11-30 09:02:09,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:02:10,109 INFO L124 PetriNetUnfolderBase]: 25/595 cut-off events. [2023-11-30 09:02:10,110 INFO L125 PetriNetUnfolderBase]: For 67/72 co-relation queries the response was YES. [2023-11-30 09:02:10,114 INFO L83 FinitePrefix]: Finished finitePrefix Result has 759 conditions, 595 events. 25/595 cut-off events. For 67/72 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 2002 event pairs, 0 based on Foata normal form. 0/498 useless extension candidates. Maximal degree in co-relation 523. Up to 44 conditions per place. [2023-11-30 09:02:10,118 INFO L140 encePairwiseOnDemand]: 588/595 looper letters, 33 selfloop transitions, 18 changer transitions 3/583 dead transitions. [2023-11-30 09:02:10,118 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 557 places, 583 transitions, 1481 flow [2023-11-30 09:02:10,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-30 09:02:10,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-11-30 09:02:10,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 7796 transitions. [2023-11-30 09:02:10,127 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9358943577430973 [2023-11-30 09:02:10,127 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 7796 transitions. [2023-11-30 09:02:10,127 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 7796 transitions. [2023-11-30 09:02:10,130 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:02:10,130 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 7796 transitions. [2023-11-30 09:02:10,140 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 556.8571428571429) internal successors, (7796), 14 states have internal predecessors, (7796), 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) [2023-11-30 09:02:10,149 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 595.0) internal successors, (8925), 15 states have internal predecessors, (8925), 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) [2023-11-30 09:02:10,151 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 595.0) internal successors, (8925), 15 states have internal predecessors, (8925), 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) [2023-11-30 09:02:10,152 INFO L307 CegarLoopForPetriNet]: 535 programPoint places, 22 predicate places. [2023-11-30 09:02:10,152 INFO L500 AbstractCegarLoop]: Abstraction has has 557 places, 583 transitions, 1481 flow [2023-11-30 09:02:10,154 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 555.8333333333334) internal successors, (6670), 12 states have internal predecessors, (6670), 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) [2023-11-30 09:02:10,154 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:02:10,154 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:02:10,175 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-30 09:02:10,372 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-30 09:02:10,372 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err20ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err20ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (and 105 more)] === [2023-11-30 09:02:10,373 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:02:10,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1974724371, now seen corresponding path program 1 times [2023-11-30 09:02:10,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:02:10,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774800654] [2023-11-30 09:02:10,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:02:10,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:02:10,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:02:10,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:02:10,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:02:10,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774800654] [2023-11-30 09:02:10,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774800654] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:02:10,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 09:02:10,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 09:02:10,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713654548] [2023-11-30 09:02:10,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:02:10,419 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 09:02:10,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:02:10,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 09:02:10,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-30 09:02:10,421 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 471 out of 595 [2023-11-30 09:02:10,422 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 557 places, 583 transitions, 1481 flow. Second operand has 4 states, 4 states have (on average 472.5) internal successors, (1890), 4 states have internal predecessors, (1890), 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) [2023-11-30 09:02:10,422 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:02:10,422 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 471 of 595 [2023-11-30 09:02:10,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:02:10,773 INFO L124 PetriNetUnfolderBase]: 188/1583 cut-off events. [2023-11-30 09:02:10,774 INFO L125 PetriNetUnfolderBase]: For 1314/1314 co-relation queries the response was YES. [2023-11-30 09:02:10,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2769 conditions, 1583 events. 188/1583 cut-off events. For 1314/1314 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 11059 event pairs, 52 based on Foata normal form. 0/1321 useless extension candidates. Maximal degree in co-relation 2449. Up to 188 conditions per place. [2023-11-30 09:02:10,802 INFO L140 encePairwiseOnDemand]: 563/595 looper letters, 121 selfloop transitions, 20 changer transitions 3/625 dead transitions. [2023-11-30 09:02:10,802 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 556 places, 625 transitions, 1865 flow [2023-11-30 09:02:10,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 09:02:10,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 09:02:10,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2037 transitions. [2023-11-30 09:02:10,806 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8558823529411764 [2023-11-30 09:02:10,806 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 2037 transitions. [2023-11-30 09:02:10,806 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 2037 transitions. [2023-11-30 09:02:10,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:02:10,807 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 2037 transitions. [2023-11-30 09:02:10,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 509.25) internal successors, (2037), 4 states have internal predecessors, (2037), 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) [2023-11-30 09:02:10,812 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 595.0) internal successors, (2975), 5 states have internal predecessors, (2975), 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) [2023-11-30 09:02:10,813 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 595.0) internal successors, (2975), 5 states have internal predecessors, (2975), 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) [2023-11-30 09:02:10,814 INFO L307 CegarLoopForPetriNet]: 535 programPoint places, 21 predicate places. [2023-11-30 09:02:10,814 INFO L500 AbstractCegarLoop]: Abstraction has has 556 places, 625 transitions, 1865 flow [2023-11-30 09:02:10,814 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 472.5) internal successors, (1890), 4 states have internal predecessors, (1890), 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) [2023-11-30 09:02:10,814 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:02:10,815 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:02:10,815 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-30 09:02:10,815 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err21ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err20ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (and 105 more)] === [2023-11-30 09:02:10,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:02:10,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1086911921, now seen corresponding path program 1 times [2023-11-30 09:02:10,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:02:10,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558715891] [2023-11-30 09:02:10,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:02:10,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:02:10,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:02:10,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:02:10,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:02:10,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558715891] [2023-11-30 09:02:10,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558715891] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:02:10,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 09:02:10,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 09:02:10,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140895101] [2023-11-30 09:02:10,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:02:10,913 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 09:02:10,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:02:10,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 09:02:10,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-30 09:02:10,916 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 469 out of 595 [2023-11-30 09:02:10,917 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 556 places, 625 transitions, 1865 flow. Second operand has 6 states, 6 states have (on average 471.3333333333333) internal successors, (2828), 6 states have internal predecessors, (2828), 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) [2023-11-30 09:02:10,918 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:02:10,918 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 469 of 595 [2023-11-30 09:02:10,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:02:11,484 INFO L124 PetriNetUnfolderBase]: 369/2122 cut-off events. [2023-11-30 09:02:11,484 INFO L125 PetriNetUnfolderBase]: For 3598/3602 co-relation queries the response was YES. [2023-11-30 09:02:11,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5575 conditions, 2122 events. 369/2122 cut-off events. For 3598/3602 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 14327 event pairs, 28 based on Foata normal form. 0/1800 useless extension candidates. Maximal degree in co-relation 5236. Up to 475 conditions per place. [2023-11-30 09:02:11,530 INFO L140 encePairwiseOnDemand]: 570/595 looper letters, 267 selfloop transitions, 33 changer transitions 3/791 dead transitions. [2023-11-30 09:02:11,530 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 563 places, 791 transitions, 3199 flow [2023-11-30 09:02:11,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-30 09:02:11,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-30 09:02:11,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 3976 transitions. [2023-11-30 09:02:11,536 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8352941176470589 [2023-11-30 09:02:11,536 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 3976 transitions. [2023-11-30 09:02:11,536 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 3976 transitions. [2023-11-30 09:02:11,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:02:11,538 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 3976 transitions. [2023-11-30 09:02:11,542 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 497.0) internal successors, (3976), 8 states have internal predecessors, (3976), 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) [2023-11-30 09:02:11,547 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 595.0) internal successors, (5355), 9 states have internal predecessors, (5355), 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) [2023-11-30 09:02:11,547 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 595.0) internal successors, (5355), 9 states have internal predecessors, (5355), 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) [2023-11-30 09:02:11,548 INFO L307 CegarLoopForPetriNet]: 535 programPoint places, 28 predicate places. [2023-11-30 09:02:11,548 INFO L500 AbstractCegarLoop]: Abstraction has has 563 places, 791 transitions, 3199 flow [2023-11-30 09:02:11,548 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 471.3333333333333) internal successors, (2828), 6 states have internal predecessors, (2828), 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) [2023-11-30 09:02:11,549 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:02:11,549 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:02:11,549 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-30 09:02:11,549 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err20ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (and 105 more)] === [2023-11-30 09:02:11,549 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:02:11,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1806460337, now seen corresponding path program 1 times [2023-11-30 09:02:11,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:02:11,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648880009] [2023-11-30 09:02:11,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:02:11,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:02:11,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:02:11,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:02:11,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:02:11,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648880009] [2023-11-30 09:02:11,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648880009] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:02:11,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 09:02:11,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-30 09:02:11,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319922095] [2023-11-30 09:02:11,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:02:11,774 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-30 09:02:11,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:02:11,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-30 09:02:11,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-30 09:02:11,780 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 513 out of 595 [2023-11-30 09:02:11,783 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 563 places, 791 transitions, 3199 flow. Second operand has 9 states, 9 states have (on average 516.7777777777778) internal successors, (4651), 9 states have internal predecessors, (4651), 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) [2023-11-30 09:02:11,783 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:02:11,783 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 513 of 595 [2023-11-30 09:02:11,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:02:12,702 INFO L124 PetriNetUnfolderBase]: 563/4975 cut-off events. [2023-11-30 09:02:12,703 INFO L125 PetriNetUnfolderBase]: For 6439/6461 co-relation queries the response was YES. [2023-11-30 09:02:12,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10499 conditions, 4975 events. 563/4975 cut-off events. For 6439/6461 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 43631 event pairs, 62 based on Foata normal form. 1/4097 useless extension candidates. Maximal degree in co-relation 8511. Up to 824 conditions per place. [2023-11-30 09:02:12,756 INFO L140 encePairwiseOnDemand]: 577/595 looper letters, 96 selfloop transitions, 16 changer transitions 4/821 dead transitions. [2023-11-30 09:02:12,756 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 577 places, 821 transitions, 3707 flow [2023-11-30 09:02:12,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-30 09:02:12,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-30 09:02:12,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 7770 transitions. [2023-11-30 09:02:12,766 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8705882352941177 [2023-11-30 09:02:12,766 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 7770 transitions. [2023-11-30 09:02:12,766 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 7770 transitions. [2023-11-30 09:02:12,769 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:02:12,769 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 7770 transitions. [2023-11-30 09:02:12,777 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 518.0) internal successors, (7770), 15 states have internal predecessors, (7770), 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) [2023-11-30 09:02:12,786 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 595.0) internal successors, (9520), 16 states have internal predecessors, (9520), 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) [2023-11-30 09:02:12,787 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 595.0) internal successors, (9520), 16 states have internal predecessors, (9520), 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) [2023-11-30 09:02:12,788 INFO L307 CegarLoopForPetriNet]: 535 programPoint places, 42 predicate places. [2023-11-30 09:02:12,788 INFO L500 AbstractCegarLoop]: Abstraction has has 577 places, 821 transitions, 3707 flow [2023-11-30 09:02:12,789 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 516.7777777777778) internal successors, (4651), 9 states have internal predecessors, (4651), 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) [2023-11-30 09:02:12,789 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:02:12,789 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:02:12,789 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-30 09:02:12,789 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err20ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err20ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (and 105 more)] === [2023-11-30 09:02:12,789 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:02:12,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1164818354, now seen corresponding path program 1 times [2023-11-30 09:02:12,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:02:12,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526122076] [2023-11-30 09:02:12,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:02:12,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:02:12,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:02:12,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:02:12,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:02:12,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526122076] [2023-11-30 09:02:12,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526122076] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:02:12,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 09:02:12,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 09:02:12,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432511782] [2023-11-30 09:02:12,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:02:12,837 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 09:02:12,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:02:12,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 09:02:12,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-30 09:02:12,838 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 471 out of 595 [2023-11-30 09:02:12,839 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 577 places, 821 transitions, 3707 flow. Second operand has 4 states, 4 states have (on average 472.75) internal successors, (1891), 4 states have internal predecessors, (1891), 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) [2023-11-30 09:02:12,839 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:02:12,839 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 471 of 595 [2023-11-30 09:02:12,839 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:02:13,949 INFO L124 PetriNetUnfolderBase]: 954/5920 cut-off events. [2023-11-30 09:02:13,949 INFO L125 PetriNetUnfolderBase]: For 28269/32693 co-relation queries the response was YES. [2023-11-30 09:02:14,000 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15715 conditions, 5920 events. 954/5920 cut-off events. For 28269/32693 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 61259 event pairs, 216 based on Foata normal form. 1/4728 useless extension candidates. Maximal degree in co-relation 9094. Up to 1226 conditions per place. [2023-11-30 09:02:14,041 INFO L140 encePairwiseOnDemand]: 563/595 looper letters, 153 selfloop transitions, 20 changer transitions 4/867 dead transitions. [2023-11-30 09:02:14,042 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 576 places, 867 transitions, 4235 flow [2023-11-30 09:02:14,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 09:02:14,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 09:02:14,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2037 transitions. [2023-11-30 09:02:14,045 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8558823529411764 [2023-11-30 09:02:14,045 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 2037 transitions. [2023-11-30 09:02:14,045 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 2037 transitions. [2023-11-30 09:02:14,047 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:02:14,047 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 2037 transitions. [2023-11-30 09:02:14,051 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 509.25) internal successors, (2037), 4 states have internal predecessors, (2037), 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) [2023-11-30 09:02:14,053 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 595.0) internal successors, (2975), 5 states have internal predecessors, (2975), 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) [2023-11-30 09:02:14,053 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 595.0) internal successors, (2975), 5 states have internal predecessors, (2975), 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) [2023-11-30 09:02:14,054 INFO L307 CegarLoopForPetriNet]: 535 programPoint places, 41 predicate places. [2023-11-30 09:02:14,055 INFO L500 AbstractCegarLoop]: Abstraction has has 576 places, 867 transitions, 4235 flow [2023-11-30 09:02:14,055 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 472.75) internal successors, (1891), 4 states have internal predecessors, (1891), 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) [2023-11-30 09:02:14,055 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:02:14,055 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:02:14,055 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-30 09:02:14,055 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err21ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err20ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (and 105 more)] === [2023-11-30 09:02:14,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:02:14,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1749632265, now seen corresponding path program 1 times [2023-11-30 09:02:14,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:02:14,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736333062] [2023-11-30 09:02:14,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:02:14,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:02:14,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:02:14,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:02:14,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:02:14,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736333062] [2023-11-30 09:02:14,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736333062] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:02:14,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 09:02:14,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 09:02:14,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112186073] [2023-11-30 09:02:14,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:02:14,143 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 09:02:14,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:02:14,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 09:02:14,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-30 09:02:14,148 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 469 out of 595 [2023-11-30 09:02:14,149 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 576 places, 867 transitions, 4235 flow. Second operand has 6 states, 6 states have (on average 471.5) internal successors, (2829), 6 states have internal predecessors, (2829), 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) [2023-11-30 09:02:14,151 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:02:14,151 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 469 of 595 [2023-11-30 09:02:14,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:02:16,887 INFO L124 PetriNetUnfolderBase]: 1666/10788 cut-off events. [2023-11-30 09:02:16,887 INFO L125 PetriNetUnfolderBase]: For 56925/94253 co-relation queries the response was YES. [2023-11-30 09:02:16,998 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30392 conditions, 10788 events. 1666/10788 cut-off events. For 56925/94253 co-relation queries the response was YES. Maximal size of possible extension queue 426. Compared 127189 event pairs, 298 based on Foata normal form. 23/8633 useless extension candidates. Maximal degree in co-relation 13520. Up to 2012 conditions per place. [2023-11-30 09:02:17,041 INFO L140 encePairwiseOnDemand]: 570/595 looper letters, 317 selfloop transitions, 33 changer transitions 4/1050 dead transitions. [2023-11-30 09:02:17,041 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 583 places, 1050 transitions, 6052 flow [2023-11-30 09:02:17,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-30 09:02:17,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-30 09:02:17,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 3975 transitions. [2023-11-30 09:02:17,046 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8350840336134454 [2023-11-30 09:02:17,046 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 3975 transitions. [2023-11-30 09:02:17,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 3975 transitions. [2023-11-30 09:02:17,047 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:02:17,047 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 3975 transitions. [2023-11-30 09:02:17,050 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 496.875) internal successors, (3975), 8 states have internal predecessors, (3975), 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) [2023-11-30 09:02:17,055 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 595.0) internal successors, (5355), 9 states have internal predecessors, (5355), 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) [2023-11-30 09:02:17,055 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 595.0) internal successors, (5355), 9 states have internal predecessors, (5355), 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) [2023-11-30 09:02:17,057 INFO L307 CegarLoopForPetriNet]: 535 programPoint places, 48 predicate places. [2023-11-30 09:02:17,057 INFO L500 AbstractCegarLoop]: Abstraction has has 583 places, 1050 transitions, 6052 flow [2023-11-30 09:02:17,058 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 471.5) internal successors, (2829), 6 states have internal predecessors, (2829), 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) [2023-11-30 09:02:17,058 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:02:17,058 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:02:17,058 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-30 09:02:17,058 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err20ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (and 105 more)] === [2023-11-30 09:02:17,059 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:02:17,059 INFO L85 PathProgramCache]: Analyzing trace with hash -454982890, now seen corresponding path program 1 times [2023-11-30 09:02:17,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:02:17,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235204667] [2023-11-30 09:02:17,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:02:17,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:02:17,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:02:17,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:02:17,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:02:17,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235204667] [2023-11-30 09:02:17,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235204667] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:02:17,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 09:02:17,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-30 09:02:17,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887490792] [2023-11-30 09:02:17,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:02:17,210 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-30 09:02:17,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:02:17,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-30 09:02:17,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-30 09:02:17,212 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 513 out of 595 [2023-11-30 09:02:17,215 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 583 places, 1050 transitions, 6052 flow. Second operand has 9 states, 9 states have (on average 516.8888888888889) internal successors, (4652), 9 states have internal predecessors, (4652), 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) [2023-11-30 09:02:17,217 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:02:17,217 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 513 of 595 [2023-11-30 09:02:17,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:02:19,714 INFO L124 PetriNetUnfolderBase]: 1467/11334 cut-off events. [2023-11-30 09:02:19,714 INFO L125 PetriNetUnfolderBase]: For 349525/463441 co-relation queries the response was YES. [2023-11-30 09:02:19,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30592 conditions, 11334 events. 1467/11334 cut-off events. For 349525/463441 co-relation queries the response was YES. Maximal size of possible extension queue 310. Compared 133564 event pairs, 204 based on Foata normal form. 18/9229 useless extension candidates. Maximal degree in co-relation 19035. Up to 2107 conditions per place. [2023-11-30 09:02:19,893 INFO L140 encePairwiseOnDemand]: 577/595 looper letters, 140 selfloop transitions, 17 changer transitions 4/1062 dead transitions. [2023-11-30 09:02:19,893 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 597 places, 1062 transitions, 6609 flow [2023-11-30 09:02:19,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-30 09:02:19,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-30 09:02:19,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 7769 transitions. [2023-11-30 09:02:19,902 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8704761904761905 [2023-11-30 09:02:19,902 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 7769 transitions. [2023-11-30 09:02:19,903 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 7769 transitions. [2023-11-30 09:02:19,904 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:02:19,904 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 7769 transitions. [2023-11-30 09:02:19,911 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 517.9333333333333) internal successors, (7769), 15 states have internal predecessors, (7769), 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) [2023-11-30 09:02:19,918 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 595.0) internal successors, (9520), 16 states have internal predecessors, (9520), 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) [2023-11-30 09:02:19,919 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 595.0) internal successors, (9520), 16 states have internal predecessors, (9520), 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) [2023-11-30 09:02:19,920 INFO L307 CegarLoopForPetriNet]: 535 programPoint places, 62 predicate places. [2023-11-30 09:02:19,920 INFO L500 AbstractCegarLoop]: Abstraction has has 597 places, 1062 transitions, 6609 flow [2023-11-30 09:02:19,920 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 516.8888888888889) internal successors, (4652), 9 states have internal predecessors, (4652), 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) [2023-11-30 09:02:19,921 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:02:19,921 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:02:19,921 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-30 09:02:19,921 INFO L425 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err22ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err20ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (and 105 more)] === [2023-11-30 09:02:19,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:02:19,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1158292445, now seen corresponding path program 1 times [2023-11-30 09:02:19,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:02:19,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163266284] [2023-11-30 09:02:19,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:02:19,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:02:19,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:02:19,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:02:19,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:02:19,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163266284] [2023-11-30 09:02:19,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163266284] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:02:19,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 09:02:19,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 09:02:19,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517669981] [2023-11-30 09:02:19,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:02:19,974 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 09:02:19,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:02:19,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 09:02:19,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-30 09:02:19,977 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 469 out of 595 [2023-11-30 09:02:19,979 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 597 places, 1062 transitions, 6609 flow. Second operand has 6 states, 6 states have (on average 471.3333333333333) internal successors, (2828), 6 states have internal predecessors, (2828), 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) [2023-11-30 09:02:19,979 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:02:19,979 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 469 of 595 [2023-11-30 09:02:19,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:02:22,592 INFO L124 PetriNetUnfolderBase]: 1436/10613 cut-off events. [2023-11-30 09:02:22,592 INFO L125 PetriNetUnfolderBase]: For 197986/495673 co-relation queries the response was YES. [2023-11-30 09:02:22,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31553 conditions, 10613 events. 1436/10613 cut-off events. For 197986/495673 co-relation queries the response was YES. Maximal size of possible extension queue 303. Compared 123435 event pairs, 214 based on Foata normal form. 690/9322 useless extension candidates. Maximal degree in co-relation 19238. Up to 1963 conditions per place. [2023-11-30 09:02:22,843 INFO L140 encePairwiseOnDemand]: 572/595 looper letters, 329 selfloop transitions, 33 changer transitions 4/1063 dead transitions. [2023-11-30 09:02:22,843 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 604 places, 1063 transitions, 7390 flow [2023-11-30 09:02:22,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-30 09:02:22,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-30 09:02:22,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 3938 transitions. [2023-11-30 09:02:22,851 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8273109243697478 [2023-11-30 09:02:22,851 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 3938 transitions. [2023-11-30 09:02:22,852 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 3938 transitions. [2023-11-30 09:02:22,855 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:02:22,855 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 3938 transitions. [2023-11-30 09:02:22,861 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 492.25) internal successors, (3938), 8 states have internal predecessors, (3938), 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) [2023-11-30 09:02:22,866 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 595.0) internal successors, (5355), 9 states have internal predecessors, (5355), 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) [2023-11-30 09:02:22,866 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 595.0) internal successors, (5355), 9 states have internal predecessors, (5355), 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) [2023-11-30 09:02:22,867 INFO L307 CegarLoopForPetriNet]: 535 programPoint places, 69 predicate places. [2023-11-30 09:02:22,867 INFO L500 AbstractCegarLoop]: Abstraction has has 604 places, 1063 transitions, 7390 flow [2023-11-30 09:02:22,867 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 471.3333333333333) internal successors, (2828), 6 states have internal predecessors, (2828), 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) [2023-11-30 09:02:22,867 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:02:22,868 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:02:22,868 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-30 09:02:22,868 INFO L425 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err23ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err20ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (and 105 more)] === [2023-11-30 09:02:22,868 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:02:22,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1547328897, now seen corresponding path program 1 times [2023-11-30 09:02:22,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:02:22,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551445230] [2023-11-30 09:02:22,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:02:22,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:02:22,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:02:22,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:02:22,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:02:22,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551445230] [2023-11-30 09:02:22,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551445230] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:02:22,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 09:02:22,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 09:02:22,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124900162] [2023-11-30 09:02:22,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:02:22,915 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 09:02:22,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:02:22,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 09:02:22,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-30 09:02:22,917 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 471 out of 595 [2023-11-30 09:02:22,918 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 604 places, 1063 transitions, 7390 flow. Second operand has 4 states, 4 states have (on average 473.5) internal successors, (1894), 4 states have internal predecessors, (1894), 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) [2023-11-30 09:02:22,918 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:02:22,918 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 471 of 595 [2023-11-30 09:02:22,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:02:25,528 INFO L124 PetriNetUnfolderBase]: 1427/11293 cut-off events. [2023-11-30 09:02:25,529 INFO L125 PetriNetUnfolderBase]: For 233210/790287 co-relation queries the response was YES. [2023-11-30 09:02:25,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35140 conditions, 11293 events. 1427/11293 cut-off events. For 233210/790287 co-relation queries the response was YES. Maximal size of possible extension queue 313. Compared 133496 event pairs, 233 based on Foata normal form. 881/10097 useless extension candidates. Maximal degree in co-relation 22078. Up to 2119 conditions per place. [2023-11-30 09:02:25,966 INFO L140 encePairwiseOnDemand]: 575/595 looper letters, 337 selfloop transitions, 34 changer transitions 4/1076 dead transitions. [2023-11-30 09:02:25,967 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 607 places, 1076 transitions, 8593 flow [2023-11-30 09:02:25,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 09:02:25,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 09:02:25,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2025 transitions. [2023-11-30 09:02:25,970 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8508403361344538 [2023-11-30 09:02:25,970 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 2025 transitions. [2023-11-30 09:02:25,970 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 2025 transitions. [2023-11-30 09:02:25,970 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:02:25,970 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 2025 transitions. [2023-11-30 09:02:25,972 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 506.25) internal successors, (2025), 4 states have internal predecessors, (2025), 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) [2023-11-30 09:02:25,976 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 595.0) internal successors, (2975), 5 states have internal predecessors, (2975), 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) [2023-11-30 09:02:25,977 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 595.0) internal successors, (2975), 5 states have internal predecessors, (2975), 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) [2023-11-30 09:02:25,977 INFO L307 CegarLoopForPetriNet]: 535 programPoint places, 72 predicate places. [2023-11-30 09:02:25,977 INFO L500 AbstractCegarLoop]: Abstraction has has 607 places, 1076 transitions, 8593 flow [2023-11-30 09:02:25,977 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 473.5) internal successors, (1894), 4 states have internal predecessors, (1894), 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) [2023-11-30 09:02:25,977 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:02:25,978 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:02:25,978 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-30 09:02:25,978 INFO L425 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err20ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (and 105 more)] === [2023-11-30 09:02:25,978 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:02:25,978 INFO L85 PathProgramCache]: Analyzing trace with hash -566557970, now seen corresponding path program 1 times [2023-11-30 09:02:25,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:02:25,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780127254] [2023-11-30 09:02:25,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:02:25,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:02:26,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:02:26,567 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:02:26,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:02:26,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780127254] [2023-11-30 09:02:26,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780127254] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 09:02:26,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [497021543] [2023-11-30 09:02:26,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:02:26,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:02:26,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:02:26,574 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) [2023-11-30 09:02:26,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-30 09:02:26,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:02:26,664 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-30 09:02:26,667 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:02:26,824 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-30 09:02:27,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-30 09:02:27,096 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-30 09:02:27,132 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-11-30 09:02:27,141 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:02:27,141 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 09:02:27,513 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_140 (Array Int Int))) (< 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_140) |c_ULTIMATE.start_create_fresh_int_array_#res#1.base|) |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|) 9223372039002259456))) is different from false [2023-11-30 09:02:27,589 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-30 09:02:27,589 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 25 [2023-11-30 09:02:27,596 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-30 09:02:27,597 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 34 [2023-11-30 09:02:27,787 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:02:27,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [497021543] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 09:02:27,788 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 09:02:27,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17, 17] total 46 [2023-11-30 09:02:27,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447986270] [2023-11-30 09:02:27,788 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 09:02:27,788 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2023-11-30 09:02:27,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:02:27,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2023-11-30 09:02:27,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=1877, Unknown=33, NotChecked=88, Total=2162 [2023-11-30 09:02:27,798 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 403 out of 595 [2023-11-30 09:02:27,810 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 607 places, 1076 transitions, 8593 flow. Second operand has 47 states, 47 states have (on average 405.8936170212766) internal successors, (19077), 47 states have internal predecessors, (19077), 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) [2023-11-30 09:02:27,810 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:02:27,810 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 403 of 595 [2023-11-30 09:02:27,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:02:42,075 INFO L124 PetriNetUnfolderBase]: 10018/59172 cut-off events. [2023-11-30 09:02:42,076 INFO L125 PetriNetUnfolderBase]: For 185586/390441 co-relation queries the response was YES. [2023-11-30 09:02:42,827 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148083 conditions, 59172 events. 10018/59172 cut-off events. For 185586/390441 co-relation queries the response was YES. Maximal size of possible extension queue 1058. Compared 859073 event pairs, 3038 based on Foata normal form. 247/47854 useless extension candidates. Maximal degree in co-relation 129056. Up to 8298 conditions per place. [2023-11-30 09:02:43,072 INFO L140 encePairwiseOnDemand]: 547/595 looper letters, 748 selfloop transitions, 121 changer transitions 5/1486 dead transitions. [2023-11-30 09:02:43,072 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 640 places, 1486 transitions, 14267 flow [2023-11-30 09:02:43,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-11-30 09:02:43,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2023-11-30 09:02:43,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 14279 transitions. [2023-11-30 09:02:43,111 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7058329214038557 [2023-11-30 09:02:43,111 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 14279 transitions. [2023-11-30 09:02:43,111 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 14279 transitions. [2023-11-30 09:02:43,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:02:43,114 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 14279 transitions. [2023-11-30 09:02:43,127 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 34 states have (on average 419.97058823529414) internal successors, (14279), 34 states have internal predecessors, (14279), 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) [2023-11-30 09:02:43,140 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 35 states, 35 states have (on average 595.0) internal successors, (20825), 35 states have internal predecessors, (20825), 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) [2023-11-30 09:02:43,142 INFO L81 ComplementDD]: Finished complementDD. Result has 35 states, 35 states have (on average 595.0) internal successors, (20825), 35 states have internal predecessors, (20825), 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) [2023-11-30 09:02:43,143 INFO L307 CegarLoopForPetriNet]: 535 programPoint places, 105 predicate places. [2023-11-30 09:02:43,143 INFO L500 AbstractCegarLoop]: Abstraction has has 640 places, 1486 transitions, 14267 flow [2023-11-30 09:02:43,146 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 405.8936170212766) internal successors, (19077), 47 states have internal predecessors, (19077), 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) [2023-11-30 09:02:43,147 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:02:43,147 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:02:43,157 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-30 09:02:43,351 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:02:43,351 INFO L425 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err23ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err20ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (and 105 more)] === [2023-11-30 09:02:43,351 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:02:43,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1644025815, now seen corresponding path program 1 times [2023-11-30 09:02:43,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:02:43,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998061653] [2023-11-30 09:02:43,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:02:43,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:02:43,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:02:43,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:02:43,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:02:43,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998061653] [2023-11-30 09:02:43,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998061653] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:02:43,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 09:02:43,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 09:02:43,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206706786] [2023-11-30 09:02:43,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:02:43,637 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 09:02:43,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:02:43,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 09:02:43,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-30 09:02:43,638 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 471 out of 595 [2023-11-30 09:02:43,639 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 640 places, 1486 transitions, 14267 flow. Second operand has 4 states, 4 states have (on average 473.75) internal successors, (1895), 4 states have internal predecessors, (1895), 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) [2023-11-30 09:02:43,639 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:02:43,639 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 471 of 595 [2023-11-30 09:02:43,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:02:58,311 INFO L124 PetriNetUnfolderBase]: 10017/65691 cut-off events. [2023-11-30 09:02:58,311 INFO L125 PetriNetUnfolderBase]: For 217170/379401 co-relation queries the response was YES. [2023-11-30 09:02:59,781 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168448 conditions, 65691 events. 10017/65691 cut-off events. For 217170/379401 co-relation queries the response was YES. Maximal size of possible extension queue 989. Compared 971997 event pairs, 2820 based on Foata normal form. 432/52973 useless extension candidates. Maximal degree in co-relation 147585. Up to 10112 conditions per place. [2023-11-30 09:03:00,108 INFO L140 encePairwiseOnDemand]: 575/595 looper letters, 642 selfloop transitions, 59 changer transitions 5/1501 dead transitions. [2023-11-30 09:03:00,108 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 639 places, 1501 transitions, 16177 flow [2023-11-30 09:03:00,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 09:03:00,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 09:03:00,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2013 transitions. [2023-11-30 09:03:00,112 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8457983193277311 [2023-11-30 09:03:00,112 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 2013 transitions. [2023-11-30 09:03:00,112 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 2013 transitions. [2023-11-30 09:03:00,113 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:03:00,113 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 2013 transitions. [2023-11-30 09:03:00,116 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 503.25) internal successors, (2013), 4 states have internal predecessors, (2013), 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) [2023-11-30 09:03:00,118 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 595.0) internal successors, (2975), 5 states have internal predecessors, (2975), 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) [2023-11-30 09:03:00,119 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 595.0) internal successors, (2975), 5 states have internal predecessors, (2975), 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) [2023-11-30 09:03:00,119 INFO L307 CegarLoopForPetriNet]: 535 programPoint places, 104 predicate places. [2023-11-30 09:03:00,119 INFO L500 AbstractCegarLoop]: Abstraction has has 639 places, 1501 transitions, 16177 flow [2023-11-30 09:03:00,120 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 473.75) internal successors, (1895), 4 states have internal predecessors, (1895), 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) [2023-11-30 09:03:00,120 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:03:00,120 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:03:00,120 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-30 09:03:00,120 INFO L425 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err22ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err20ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (and 105 more)] === [2023-11-30 09:03:00,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:03:00,121 INFO L85 PathProgramCache]: Analyzing trace with hash 300327959, now seen corresponding path program 1 times [2023-11-30 09:03:00,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:03:00,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520202403] [2023-11-30 09:03:00,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:03:00,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:03:00,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:03:00,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:03:00,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:03:00,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520202403] [2023-11-30 09:03:00,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520202403] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:03:00,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 09:03:00,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 09:03:00,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675647988] [2023-11-30 09:03:00,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:03:00,197 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 09:03:00,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:03:00,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 09:03:00,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-30 09:03:00,199 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 469 out of 595 [2023-11-30 09:03:00,200 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 639 places, 1501 transitions, 16177 flow. Second operand has 6 states, 6 states have (on average 471.5) internal successors, (2829), 6 states have internal predecessors, (2829), 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) [2023-11-30 09:03:00,200 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:03:00,200 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 469 of 595 [2023-11-30 09:03:00,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:03:17,840 INFO L124 PetriNetUnfolderBase]: 10361/65608 cut-off events. [2023-11-30 09:03:17,841 INFO L125 PetriNetUnfolderBase]: For 245384/383821 co-relation queries the response was YES. [2023-11-30 09:03:18,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187670 conditions, 65608 events. 10361/65608 cut-off events. For 245384/383821 co-relation queries the response was YES. Maximal size of possible extension queue 1046. Compared 967590 event pairs, 3037 based on Foata normal form. 93/52883 useless extension candidates. Maximal degree in co-relation 165315. Up to 9561 conditions per place. [2023-11-30 09:03:19,466 INFO L140 encePairwiseOnDemand]: 572/595 looper letters, 401 selfloop transitions, 33 changer transitions 5/1505 dead transitions. [2023-11-30 09:03:19,466 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 646 places, 1505 transitions, 17219 flow [2023-11-30 09:03:19,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-30 09:03:19,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-30 09:03:19,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 3937 transitions. [2023-11-30 09:03:19,469 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8271008403361344 [2023-11-30 09:03:19,469 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 3937 transitions. [2023-11-30 09:03:19,469 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 3937 transitions. [2023-11-30 09:03:19,469 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:03:19,470 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 3937 transitions. [2023-11-30 09:03:19,473 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 492.125) internal successors, (3937), 8 states have internal predecessors, (3937), 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) [2023-11-30 09:03:19,476 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 595.0) internal successors, (5355), 9 states have internal predecessors, (5355), 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) [2023-11-30 09:03:19,477 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 595.0) internal successors, (5355), 9 states have internal predecessors, (5355), 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) [2023-11-30 09:03:19,477 INFO L307 CegarLoopForPetriNet]: 535 programPoint places, 111 predicate places. [2023-11-30 09:03:19,477 INFO L500 AbstractCegarLoop]: Abstraction has has 646 places, 1505 transitions, 17219 flow [2023-11-30 09:03:19,477 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 471.5) internal successors, (2829), 6 states have internal predecessors, (2829), 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) [2023-11-30 09:03:19,478 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:03:19,478 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:03:19,478 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-30 09:03:19,478 INFO L425 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err24ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err20ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (and 105 more)] === [2023-11-30 09:03:19,478 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:03:19,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1843064299, now seen corresponding path program 1 times [2023-11-30 09:03:19,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:03:19,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646049547] [2023-11-30 09:03:19,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:03:19,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:03:19,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:03:19,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:03:19,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:03:19,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646049547] [2023-11-30 09:03:19,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646049547] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:03:19,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 09:03:19,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-30 09:03:19,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143151654] [2023-11-30 09:03:19,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:03:19,559 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-30 09:03:19,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:03:19,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-30 09:03:19,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-30 09:03:19,562 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 448 out of 595 [2023-11-30 09:03:19,563 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 646 places, 1505 transitions, 17219 flow. Second operand has 8 states, 8 states have (on average 450.25) internal successors, (3602), 8 states have internal predecessors, (3602), 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) [2023-11-30 09:03:19,563 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:03:19,563 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 448 of 595 [2023-11-30 09:03:19,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:03:40,194 INFO L124 PetriNetUnfolderBase]: 13889/82100 cut-off events. [2023-11-30 09:03:40,194 INFO L125 PetriNetUnfolderBase]: For 364877/617688 co-relation queries the response was YES. [2023-11-30 09:03:42,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 248381 conditions, 82100 events. 13889/82100 cut-off events. For 364877/617688 co-relation queries the response was YES. Maximal size of possible extension queue 1405. Compared 1251321 event pairs, 4372 based on Foata normal form. 936/67080 useless extension candidates. Maximal degree in co-relation 223148. Up to 11213 conditions per place. [2023-11-30 09:03:42,639 INFO L140 encePairwiseOnDemand]: 562/595 looper letters, 939 selfloop transitions, 181 changer transitions 5/1869 dead transitions. [2023-11-30 09:03:42,639 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 657 places, 1869 transitions, 25677 flow [2023-11-30 09:03:42,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-30 09:03:42,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-30 09:03:42,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 5623 transitions. [2023-11-30 09:03:42,644 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7875350140056022 [2023-11-30 09:03:42,644 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 5623 transitions. [2023-11-30 09:03:42,644 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 5623 transitions. [2023-11-30 09:03:42,645 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:03:42,645 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 5623 transitions. [2023-11-30 09:03:42,651 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 468.5833333333333) internal successors, (5623), 12 states have internal predecessors, (5623), 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) [2023-11-30 09:03:42,655 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 595.0) internal successors, (7735), 13 states have internal predecessors, (7735), 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) [2023-11-30 09:03:42,656 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 595.0) internal successors, (7735), 13 states have internal predecessors, (7735), 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) [2023-11-30 09:03:42,656 INFO L307 CegarLoopForPetriNet]: 535 programPoint places, 122 predicate places. [2023-11-30 09:03:42,656 INFO L500 AbstractCegarLoop]: Abstraction has has 657 places, 1869 transitions, 25677 flow [2023-11-30 09:03:42,657 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 450.25) internal successors, (3602), 8 states have internal predecessors, (3602), 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) [2023-11-30 09:03:42,657 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:03:42,657 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:03:42,657 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-30 09:03:42,657 INFO L425 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err23ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err20ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (and 105 more)] === [2023-11-30 09:03:42,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:03:42,657 INFO L85 PathProgramCache]: Analyzing trace with hash 720233830, now seen corresponding path program 1 times [2023-11-30 09:03:42,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:03:42,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181819439] [2023-11-30 09:03:42,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:03:42,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:03:42,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:03:42,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:03:42,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:03:42,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181819439] [2023-11-30 09:03:42,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181819439] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:03:42,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 09:03:42,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 09:03:42,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384931820] [2023-11-30 09:03:42,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:03:42,700 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 09:03:42,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:03:42,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 09:03:42,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-30 09:03:42,702 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 471 out of 595 [2023-11-30 09:03:42,703 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 657 places, 1869 transitions, 25677 flow. Second operand has 4 states, 4 states have (on average 473.75) internal successors, (1895), 4 states have internal predecessors, (1895), 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) [2023-11-30 09:03:42,703 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:03:42,703 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 471 of 595 [2023-11-30 09:03:42,703 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:04:10,236 INFO L124 PetriNetUnfolderBase]: 13368/81608 cut-off events. [2023-11-30 09:04:10,236 INFO L125 PetriNetUnfolderBase]: For 293602/375623 co-relation queries the response was YES. [2023-11-30 09:04:12,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 267131 conditions, 81608 events. 13368/81608 cut-off events. For 293602/375623 co-relation queries the response was YES. Maximal size of possible extension queue 1406. Compared 1252144 event pairs, 4318 based on Foata normal form. 94/66292 useless extension candidates. Maximal degree in co-relation 240430. Up to 11212 conditions per place. [2023-11-30 09:04:12,519 INFO L140 encePairwiseOnDemand]: 575/595 looper letters, 504 selfloop transitions, 34 changer transitions 5/1900 dead transitions. [2023-11-30 09:04:12,519 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 660 places, 1900 transitions, 28054 flow [2023-11-30 09:04:12,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 09:04:12,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 09:04:12,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2025 transitions. [2023-11-30 09:04:12,521 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8508403361344538 [2023-11-30 09:04:12,521 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 2025 transitions. [2023-11-30 09:04:12,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 2025 transitions. [2023-11-30 09:04:12,521 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:04:12,521 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 2025 transitions. [2023-11-30 09:04:12,522 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 506.25) internal successors, (2025), 4 states have internal predecessors, (2025), 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) [2023-11-30 09:04:12,524 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 595.0) internal successors, (2975), 5 states have internal predecessors, (2975), 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) [2023-11-30 09:04:12,524 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 595.0) internal successors, (2975), 5 states have internal predecessors, (2975), 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) [2023-11-30 09:04:12,524 INFO L307 CegarLoopForPetriNet]: 535 programPoint places, 125 predicate places. [2023-11-30 09:04:12,524 INFO L500 AbstractCegarLoop]: Abstraction has has 660 places, 1900 transitions, 28054 flow [2023-11-30 09:04:12,525 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 473.75) internal successors, (1895), 4 states have internal predecessors, (1895), 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) [2023-11-30 09:04:12,525 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:04:12,525 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:04:12,525 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-30 09:04:12,525 INFO L425 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err20ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (and 105 more)] === [2023-11-30 09:04:12,525 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:04:12,525 INFO L85 PathProgramCache]: Analyzing trace with hash -2039203411, now seen corresponding path program 1 times [2023-11-30 09:04:12,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:04:12,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182227996] [2023-11-30 09:04:12,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:04:12,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:04:12,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:04:13,695 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:04:13,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:04:13,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182227996] [2023-11-30 09:04:13,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182227996] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 09:04:13,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1518472543] [2023-11-30 09:04:13,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:04:13,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:04:13,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:04:13,724 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) [2023-11-30 09:04:13,739 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-30 09:04:13,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:04:13,814 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 33 conjunts are in the unsatisfiable core [2023-11-30 09:04:13,817 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:04:14,101 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-30 09:04:14,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-30 09:04:14,476 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-30 09:04:14,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-30 09:04:14,539 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-30 09:04:14,567 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-11-30 09:04:14,599 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:04:14,599 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 09:04:14,695 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_203 (Array Int Int))) (< 0 (+ 9223372039002259456 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_203) c_~A~0.base) (+ c_~A~0.offset (* c_~i~0 4)))))) is different from false [2023-11-30 09:04:15,014 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_203 (Array Int Int)) (v_ArrVal_202 (Array Int Int))) (< 0 (+ (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_202) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_203) |c_ULTIMATE.start_main_#t~ret26#1.base|) |c_ULTIMATE.start_main_#t~ret26#1.offset|) 9223372039002259456))) is different from false [2023-11-30 09:04:15,031 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_203 (Array Int Int)) (v_ArrVal_202 (Array Int Int))) (< 0 (+ (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_202) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_203) |c_ULTIMATE.start_create_fresh_int_array_#res#1.base|) |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|) 9223372039002259456))) is different from false [2023-11-30 09:04:15,114 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-30 09:04:15,114 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 28 [2023-11-30 09:04:15,119 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-30 09:04:15,119 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 72 treesize of output 68 [2023-11-30 09:04:15,124 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 52 [2023-11-30 09:04:15,126 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 24 [2023-11-30 09:04:15,451 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:04:15,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1518472543] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 09:04:15,452 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 09:04:15,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 19, 19] total 57 [2023-11-30 09:04:15,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117996005] [2023-11-30 09:04:15,452 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 09:04:15,453 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2023-11-30 09:04:15,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:04:15,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2023-11-30 09:04:15,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=2726, Unknown=58, NotChecked=324, Total=3306 [2023-11-30 09:04:15,472 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 386 out of 595 [2023-11-30 09:04:15,479 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 660 places, 1900 transitions, 28054 flow. Second operand has 58 states, 58 states have (on average 389.12068965517244) internal successors, (22569), 58 states have internal predecessors, (22569), 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) [2023-11-30 09:04:15,480 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:04:15,480 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 386 of 595 [2023-11-30 09:04:15,480 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:05:11,055 INFO L124 PetriNetUnfolderBase]: 33539/167896 cut-off events. [2023-11-30 09:05:11,055 INFO L125 PetriNetUnfolderBase]: For 720073/1042391 co-relation queries the response was YES. [2023-11-30 09:05:15,437 INFO L83 FinitePrefix]: Finished finitePrefix Result has 605418 conditions, 167896 events. 33539/167896 cut-off events. For 720073/1042391 co-relation queries the response was YES. Maximal size of possible extension queue 3205. Compared 2777641 event pairs, 7656 based on Foata normal form. 811/137194 useless extension candidates. Maximal degree in co-relation 298590. Up to 23286 conditions per place. [2023-11-30 09:05:16,468 INFO L140 encePairwiseOnDemand]: 541/595 looper letters, 1803 selfloop transitions, 225 changer transitions 5/2644 dead transitions. [2023-11-30 09:05:16,468 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 699 places, 2644 transitions, 47812 flow [2023-11-30 09:05:16,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-11-30 09:05:16,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2023-11-30 09:05:16,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 16052 transitions. [2023-11-30 09:05:16,476 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.674453781512605 [2023-11-30 09:05:16,476 INFO L72 ComplementDD]: Start complementDD. Operand 40 states and 16052 transitions. [2023-11-30 09:05:16,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 16052 transitions. [2023-11-30 09:05:16,478 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:05:16,478 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 40 states and 16052 transitions. [2023-11-30 09:05:16,486 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 41 states, 40 states have (on average 401.3) internal successors, (16052), 40 states have internal predecessors, (16052), 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) [2023-11-30 09:05:16,648 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 41 states, 41 states have (on average 595.0) internal successors, (24395), 41 states have internal predecessors, (24395), 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) [2023-11-30 09:05:16,650 INFO L81 ComplementDD]: Finished complementDD. Result has 41 states, 41 states have (on average 595.0) internal successors, (24395), 41 states have internal predecessors, (24395), 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) [2023-11-30 09:05:16,650 INFO L307 CegarLoopForPetriNet]: 535 programPoint places, 164 predicate places. [2023-11-30 09:05:16,650 INFO L500 AbstractCegarLoop]: Abstraction has has 699 places, 2644 transitions, 47812 flow [2023-11-30 09:05:16,653 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 58 states have (on average 389.12068965517244) internal successors, (22569), 58 states have internal predecessors, (22569), 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) [2023-11-30 09:05:16,653 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:05:16,653 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:05:16,657 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-30 09:05:16,856 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-30 09:05:16,857 INFO L425 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err25ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err20ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (and 105 more)] === [2023-11-30 09:05:16,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:05:16,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1300419916, now seen corresponding path program 1 times [2023-11-30 09:05:16,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:05:16,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246182337] [2023-11-30 09:05:16,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:05:16,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:05:16,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:05:16,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:05:16,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:05:16,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246182337] [2023-11-30 09:05:16,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246182337] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:05:16,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 09:05:16,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-30 09:05:16,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927432969] [2023-11-30 09:05:16,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:05:16,958 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-30 09:05:16,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:05:16,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-30 09:05:16,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-30 09:05:16,961 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 448 out of 595 [2023-11-30 09:05:16,962 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 699 places, 2644 transitions, 47812 flow. Second operand has 8 states, 8 states have (on average 450.375) internal successors, (3603), 8 states have internal predecessors, (3603), 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) [2023-11-30 09:05:16,962 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:05:16,962 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 448 of 595 [2023-11-30 09:05:16,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:06:19,557 INFO L124 PetriNetUnfolderBase]: 33123/170942 cut-off events. [2023-11-30 09:06:19,557 INFO L125 PetriNetUnfolderBase]: For 890344/1433016 co-relation queries the response was YES. [2023-11-30 09:06:24,897 INFO L83 FinitePrefix]: Finished finitePrefix Result has 640340 conditions, 170942 events. 33123/170942 cut-off events. For 890344/1433016 co-relation queries the response was YES. Maximal size of possible extension queue 3118. Compared 2847009 event pairs, 7468 based on Foata normal form. 1518/140737 useless extension candidates. Maximal degree in co-relation 325536. Up to 22924 conditions per place. [2023-11-30 09:06:25,936 INFO L140 encePairwiseOnDemand]: 556/595 looper letters, 1544 selfloop transitions, 350 changer transitions 5/2768 dead transitions. [2023-11-30 09:06:25,936 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 710 places, 2768 transitions, 56100 flow [2023-11-30 09:06:25,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-30 09:06:25,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-30 09:06:25,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 5621 transitions. [2023-11-30 09:06:25,939 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7872549019607843 [2023-11-30 09:06:25,939 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 5621 transitions. [2023-11-30 09:06:25,939 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 5621 transitions. [2023-11-30 09:06:25,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:06:25,940 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 5621 transitions. [2023-11-30 09:06:25,943 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 468.4166666666667) internal successors, (5621), 12 states have internal predecessors, (5621), 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) [2023-11-30 09:06:25,945 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 595.0) internal successors, (7735), 13 states have internal predecessors, (7735), 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) [2023-11-30 09:06:25,946 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 595.0) internal successors, (7735), 13 states have internal predecessors, (7735), 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) [2023-11-30 09:06:25,946 INFO L307 CegarLoopForPetriNet]: 535 programPoint places, 175 predicate places. [2023-11-30 09:06:25,946 INFO L500 AbstractCegarLoop]: Abstraction has has 710 places, 2768 transitions, 56100 flow [2023-11-30 09:06:25,947 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 450.375) internal successors, (3603), 8 states have internal predecessors, (3603), 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) [2023-11-30 09:06:25,947 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:06:25,947 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:06:25,947 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-30 09:06:25,948 INFO L425 AbstractCegarLoop]: === Iteration 19 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err20ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (and 105 more)] === [2023-11-30 09:06:25,948 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:06:25,948 INFO L85 PathProgramCache]: Analyzing trace with hash -2111668589, now seen corresponding path program 1 times [2023-11-30 09:06:25,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:06:25,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857673970] [2023-11-30 09:06:25,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:06:25,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:06:25,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:06:27,117 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:06:27,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:06:27,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857673970] [2023-11-30 09:06:27,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857673970] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 09:06:27,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [467037251] [2023-11-30 09:06:27,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:06:27,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:06:27,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:06:27,152 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 09:06:27,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-30 09:06:27,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:06:27,302 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 33 conjunts are in the unsatisfiable core [2023-11-30 09:06:27,305 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:06:27,752 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-30 09:06:28,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-30 09:06:28,064 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-30 09:06:28,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-30 09:06:28,114 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-30 09:06:28,150 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-11-30 09:06:28,194 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:06:28,195 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 09:06:28,536 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_238 (Array Int Int)) (v_ArrVal_237 (Array Int Int))) (< 0 (+ (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_237) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_238) c_~A~0.base) c_~A~0.offset) 9223372039002259456))) is different from false [2023-11-30 09:06:28,541 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_238 (Array Int Int)) (v_ArrVal_237 (Array Int Int))) (< 0 (+ (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_237) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_238) |c_ULTIMATE.start_main_#t~ret26#1.base|) |c_ULTIMATE.start_main_#t~ret26#1.offset|) 9223372039002259456))) is different from false [2023-11-30 09:06:28,547 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_238 (Array Int Int)) (v_ArrVal_237 (Array Int Int))) (< 0 (+ (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_237) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_238) |c_ULTIMATE.start_create_fresh_int_array_#res#1.base|) |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|) 9223372039002259456))) is different from false [2023-11-30 09:06:28,618 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-30 09:06:28,618 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 28 [2023-11-30 09:06:28,630 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-30 09:06:28,630 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 72 treesize of output 68 [2023-11-30 09:06:28,634 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 26 [2023-11-30 09:06:28,637 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 50 [2023-11-30 09:06:29,021 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:06:29,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [467037251] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 09:06:29,021 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 09:06:29,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 19, 19] total 57 [2023-11-30 09:06:29,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591165603] [2023-11-30 09:06:29,021 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 09:06:29,022 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2023-11-30 09:06:29,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:06:29,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2023-11-30 09:06:29,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=196, Invalid=2742, Unknown=44, NotChecked=324, Total=3306 [2023-11-30 09:06:29,030 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 386 out of 595 [2023-11-30 09:06:29,053 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 710 places, 2768 transitions, 56100 flow. Second operand has 58 states, 58 states have (on average 389.17241379310343) internal successors, (22572), 58 states have internal predecessors, (22572), 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) [2023-11-30 09:06:29,058 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:06:29,058 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 386 of 595 [2023-11-30 09:06:29,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand