/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/popl20-commit-1.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-30 09:24:12,004 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-30 09:24:12,072 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 09:24:12,095 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-30 09:24:12,096 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-30 09:24:12,096 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-30 09:24:12,097 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-30 09:24:12,097 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-30 09:24:12,097 INFO L153 SettingsManager]: * Use SBE=true [2023-11-30 09:24:12,100 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-30 09:24:12,101 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-30 09:24:12,101 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-30 09:24:12,101 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-30 09:24:12,102 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-30 09:24:12,102 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-30 09:24:12,102 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-30 09:24:12,102 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-30 09:24:12,102 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-30 09:24:12,103 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-30 09:24:12,103 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-30 09:24:12,103 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-30 09:24:12,103 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-30 09:24:12,104 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-30 09:24:12,104 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-30 09:24:12,104 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-30 09:24:12,105 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 09:24:12,105 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-30 09:24:12,105 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-30 09:24:12,105 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-30 09:24:12,105 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-30 09:24:12,106 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-30 09:24:12,106 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-30 09:24:12,106 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-30 09:24:12,106 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-11-30 09:24:12,292 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-30 09:24:12,308 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-30 09:24:12,310 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-30 09:24:12,310 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-30 09:24:12,312 INFO L274 PluginConnector]: CDTParser initialized [2023-11-30 09:24:12,313 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-commit-1.wvr.c [2023-11-30 09:24:13,262 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-30 09:24:13,432 INFO L384 CDTParser]: Found 1 translation units. [2023-11-30 09:24:13,433 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-commit-1.wvr.c [2023-11-30 09:24:13,439 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/730dd953c/a6a56c71192b497a915a13a9079be3ea/FLAGb3e3fbd55 [2023-11-30 09:24:13,452 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/730dd953c/a6a56c71192b497a915a13a9079be3ea [2023-11-30 09:24:13,455 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-30 09:24:13,456 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-30 09:24:13,458 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-30 09:24:13,458 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-30 09:24:13,462 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-30 09:24:13,462 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 09:24:13" (1/1) ... [2023-11-30 09:24:13,463 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77c43dd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:24:13, skipping insertion in model container [2023-11-30 09:24:13,464 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 09:24:13" (1/1) ... [2023-11-30 09:24:13,491 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-30 09:24:13,622 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 09:24:13,629 INFO L202 MainTranslator]: Completed pre-run [2023-11-30 09:24:13,648 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 09:24:13,653 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-30 09:24:13,654 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-30 09:24:13,658 INFO L206 MainTranslator]: Completed translation [2023-11-30 09:24:13,658 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:24:13 WrapperNode [2023-11-30 09:24:13,658 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-30 09:24:13,659 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-30 09:24:13,659 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-30 09:24:13,659 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-30 09:24:13,663 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:24:13" (1/1) ... [2023-11-30 09:24:13,669 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:24:13" (1/1) ... [2023-11-30 09:24:13,696 INFO L138 Inliner]: procedures = 25, calls = 69, calls flagged for inlining = 21, calls inlined = 25, statements flattened = 376 [2023-11-30 09:24:13,696 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-30 09:24:13,697 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-30 09:24:13,697 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-30 09:24:13,697 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-30 09:24:13,705 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:24:13" (1/1) ... [2023-11-30 09:24:13,705 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:24:13" (1/1) ... [2023-11-30 09:24:13,708 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:24:13" (1/1) ... [2023-11-30 09:24:13,708 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:24:13" (1/1) ... [2023-11-30 09:24:13,715 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:24:13" (1/1) ... [2023-11-30 09:24:13,735 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:24:13" (1/1) ... [2023-11-30 09:24:13,737 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:24:13" (1/1) ... [2023-11-30 09:24:13,738 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:24:13" (1/1) ... [2023-11-30 09:24:13,740 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-30 09:24:13,741 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-30 09:24:13,741 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-30 09:24:13,741 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-30 09:24:13,742 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:24:13" (1/1) ... [2023-11-30 09:24:13,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 09:24:13,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:24:13,764 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 09:24:13,768 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 09:24:13,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-30 09:24:13,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-30 09:24:13,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-30 09:24:13,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-30 09:24:13,782 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-30 09:24:13,782 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-30 09:24:13,782 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-30 09:24:13,782 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-30 09:24:13,782 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-30 09:24:13,782 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-30 09:24:13,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-30 09:24:13,782 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-30 09:24:13,782 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-30 09:24:13,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-30 09:24:13,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-30 09:24:13,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-30 09:24:13,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-30 09:24:13,784 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 09:24:13,857 INFO L241 CfgBuilder]: Building ICFG [2023-11-30 09:24:13,859 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-30 09:24:14,218 INFO L282 CfgBuilder]: Performing block encoding [2023-11-30 09:24:14,446 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-30 09:24:14,447 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-30 09:24:14,448 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 09:24:14 BoogieIcfgContainer [2023-11-30 09:24:14,448 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-30 09:24:14,449 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-30 09:24:14,450 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-30 09:24:14,451 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-30 09:24:14,452 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 09:24:13" (1/3) ... [2023-11-30 09:24:14,452 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29984e57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 09:24:14, skipping insertion in model container [2023-11-30 09:24:14,452 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:24:13" (2/3) ... [2023-11-30 09:24:14,452 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29984e57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 09:24:14, skipping insertion in model container [2023-11-30 09:24:14,452 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 09:24:14" (3/3) ... [2023-11-30 09:24:14,453 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-commit-1.wvr.c [2023-11-30 09:24:14,464 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-30 09:24:14,464 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-11-30 09:24:14,464 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-30 09:24:14,553 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-30 09:24:14,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 291 places, 300 transitions, 621 flow [2023-11-30 09:24:14,646 INFO L124 PetriNetUnfolderBase]: 19/297 cut-off events. [2023-11-30 09:24:14,646 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-30 09:24:14,652 INFO L83 FinitePrefix]: Finished finitePrefix Result has 310 conditions, 297 events. 19/297 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 238 event pairs, 0 based on Foata normal form. 0/256 useless extension candidates. Maximal degree in co-relation 252. Up to 2 conditions per place. [2023-11-30 09:24:14,652 INFO L82 GeneralOperation]: Start removeDead. Operand has 291 places, 300 transitions, 621 flow [2023-11-30 09:24:14,656 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 265 places, 273 transitions, 561 flow [2023-11-30 09:24:14,667 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 09:24:14,674 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;@61eac525, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 09:24:14,675 INFO L363 AbstractCegarLoop]: Starting to check reachability of 41 error locations. [2023-11-30 09:24:14,683 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 09:24:14,683 INFO L124 PetriNetUnfolderBase]: 3/73 cut-off events. [2023-11-30 09:24:14,683 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 09:24:14,683 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:24:14,684 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] [2023-11-30 09:24:14,684 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2023-11-30 09:24:14,687 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:24:14,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1770888974, now seen corresponding path program 1 times [2023-11-30 09:24:14,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:24:14,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946044452] [2023-11-30 09:24:14,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:24:14,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:24:14,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:24:14,991 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 09:24:14,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:24:14,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946044452] [2023-11-30 09:24:14,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946044452] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:24:14,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 09:24:14,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 09:24:14,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847553561] [2023-11-30 09:24:14,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:24:15,000 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 09:24:15,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:24:15,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 09:24:15,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 09:24:15,042 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 214 out of 300 [2023-11-30 09:24:15,047 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 265 places, 273 transitions, 561 flow. Second operand has 4 states, 4 states have (on average 215.5) internal successors, (862), 4 states have internal predecessors, (862), 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 09:24:15,047 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:24:15,047 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 214 of 300 [2023-11-30 09:24:15,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:24:15,584 INFO L124 PetriNetUnfolderBase]: 770/2006 cut-off events. [2023-11-30 09:24:15,584 INFO L125 PetriNetUnfolderBase]: For 230/230 co-relation queries the response was YES. [2023-11-30 09:24:15,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3315 conditions, 2006 events. 770/2006 cut-off events. For 230/230 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 13535 event pairs, 455 based on Foata normal form. 282/1662 useless extension candidates. Maximal degree in co-relation 2902. Up to 1116 conditions per place. [2023-11-30 09:24:15,601 INFO L140 encePairwiseOnDemand]: 259/300 looper letters, 75 selfloop transitions, 15 changer transitions 6/280 dead transitions. [2023-11-30 09:24:15,601 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 280 transitions, 755 flow [2023-11-30 09:24:15,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 09:24:15,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 09:24:15,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1189 transitions. [2023-11-30 09:24:15,615 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7926666666666666 [2023-11-30 09:24:15,616 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1189 transitions. [2023-11-30 09:24:15,616 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1189 transitions. [2023-11-30 09:24:15,618 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:24:15,620 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1189 transitions. [2023-11-30 09:24:15,625 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 237.8) internal successors, (1189), 5 states have internal predecessors, (1189), 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 09:24:15,633 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 300.0) internal successors, (1800), 6 states have internal predecessors, (1800), 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 09:24:15,634 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 300.0) internal successors, (1800), 6 states have internal predecessors, (1800), 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 09:24:15,638 INFO L307 CegarLoopForPetriNet]: 265 programPoint places, -4 predicate places. [2023-11-30 09:24:15,638 INFO L500 AbstractCegarLoop]: Abstraction has has 261 places, 280 transitions, 755 flow [2023-11-30 09:24:15,639 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 215.5) internal successors, (862), 4 states have internal predecessors, (862), 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 09:24:15,639 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:24:15,639 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] [2023-11-30 09:24:15,639 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-30 09:24:15,640 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2023-11-30 09:24:15,640 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:24:15,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1127049115, now seen corresponding path program 1 times [2023-11-30 09:24:15,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:24:15,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6616711] [2023-11-30 09:24:15,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:24:15,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:24:15,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:24:15,744 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 09:24:15,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:24:15,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6616711] [2023-11-30 09:24:15,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6616711] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 09:24:15,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [979872635] [2023-11-30 09:24:15,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:24:15,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:24:15,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:24:15,747 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 09:24:15,756 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 09:24:15,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:24:15,835 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-30 09:24:15,839 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:24:15,883 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 09:24:15,883 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 09:24:15,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [979872635] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:24:15,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 09:24:15,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-30 09:24:15,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483609949] [2023-11-30 09:24:15,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:24:15,884 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 09:24:15,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:24:15,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 09:24:15,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-30 09:24:15,886 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 214 out of 300 [2023-11-30 09:24:15,888 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 280 transitions, 755 flow. Second operand has 6 states, 6 states have (on average 216.16666666666666) internal successors, (1297), 6 states have internal predecessors, (1297), 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 09:24:15,888 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:24:15,888 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 214 of 300 [2023-11-30 09:24:15,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:24:16,309 INFO L124 PetriNetUnfolderBase]: 770/2003 cut-off events. [2023-11-30 09:24:16,309 INFO L125 PetriNetUnfolderBase]: For 434/544 co-relation queries the response was YES. [2023-11-30 09:24:16,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4446 conditions, 2003 events. 770/2003 cut-off events. For 434/544 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 13491 event pairs, 455 based on Foata normal form. 0/1380 useless extension candidates. Maximal degree in co-relation 3939. Up to 1113 conditions per place. [2023-11-30 09:24:16,320 INFO L140 encePairwiseOnDemand]: 282/300 looper letters, 63 selfloop transitions, 24 changer transitions 6/277 dead transitions. [2023-11-30 09:24:16,320 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 264 places, 277 transitions, 917 flow [2023-11-30 09:24:16,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 09:24:16,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 09:24:16,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1588 transitions. [2023-11-30 09:24:16,323 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7561904761904762 [2023-11-30 09:24:16,323 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1588 transitions. [2023-11-30 09:24:16,323 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1588 transitions. [2023-11-30 09:24:16,324 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:24:16,324 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1588 transitions. [2023-11-30 09:24:16,326 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 226.85714285714286) internal successors, (1588), 7 states have internal predecessors, (1588), 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 09:24:16,329 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 300.0) internal successors, (2400), 8 states have internal predecessors, (2400), 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 09:24:16,330 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 300.0) internal successors, (2400), 8 states have internal predecessors, (2400), 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 09:24:16,330 INFO L307 CegarLoopForPetriNet]: 265 programPoint places, -1 predicate places. [2023-11-30 09:24:16,330 INFO L500 AbstractCegarLoop]: Abstraction has has 264 places, 277 transitions, 917 flow [2023-11-30 09:24:16,331 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 216.16666666666666) internal successors, (1297), 6 states have internal predecessors, (1297), 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 09:24:16,331 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:24:16,332 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] [2023-11-30 09:24:16,341 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-30 09:24:16,536 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 09:24:16,537 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2023-11-30 09:24:16,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:24:16,537 INFO L85 PathProgramCache]: Analyzing trace with hash 578785068, now seen corresponding path program 1 times [2023-11-30 09:24:16,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:24:16,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135821817] [2023-11-30 09:24:16,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:24:16,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:24:16,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:24:16,686 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 09:24:16,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:24:16,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135821817] [2023-11-30 09:24:16,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135821817] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 09:24:16,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1817840746] [2023-11-30 09:24:16,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:24:16,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:24:16,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:24:16,703 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 09:24:16,717 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 09:24:16,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:24:16,808 INFO L262 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-30 09:24:16,811 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:24:16,858 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 09:24:16,859 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 09:24:16,918 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 09:24:16,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1817840746] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 09:24:16,919 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 09:24:16,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-11-30 09:24:16,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909946126] [2023-11-30 09:24:16,919 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 09:24:16,920 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-30 09:24:16,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:24:16,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-30 09:24:16,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-11-30 09:24:16,922 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 214 out of 300 [2023-11-30 09:24:16,924 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 277 transitions, 917 flow. Second operand has 12 states, 12 states have (on average 216.83333333333334) internal successors, (2602), 12 states have internal predecessors, (2602), 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 09:24:16,924 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:24:16,924 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 214 of 300 [2023-11-30 09:24:16,924 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:24:17,460 INFO L124 PetriNetUnfolderBase]: 779/2108 cut-off events. [2023-11-30 09:24:17,461 INFO L125 PetriNetUnfolderBase]: For 855/1075 co-relation queries the response was YES. [2023-11-30 09:24:17,463 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5922 conditions, 2108 events. 779/2108 cut-off events. For 855/1075 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 14007 event pairs, 455 based on Foata normal form. 0/1476 useless extension candidates. Maximal degree in co-relation 4976. Up to 1191 conditions per place. [2023-11-30 09:24:17,474 INFO L140 encePairwiseOnDemand]: 279/300 looper letters, 111 selfloop transitions, 54 changer transitions 6/355 dead transitions. [2023-11-30 09:24:17,474 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 355 transitions, 1715 flow [2023-11-30 09:24:17,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-30 09:24:17,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-11-30 09:24:17,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 3170 transitions. [2023-11-30 09:24:17,480 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7547619047619047 [2023-11-30 09:24:17,480 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 3170 transitions. [2023-11-30 09:24:17,480 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 3170 transitions. [2023-11-30 09:24:17,481 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:24:17,481 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 3170 transitions. [2023-11-30 09:24:17,486 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 226.42857142857142) internal successors, (3170), 14 states have internal predecessors, (3170), 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 09:24:17,491 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 300.0) internal successors, (4500), 15 states have internal predecessors, (4500), 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 09:24:17,492 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 300.0) internal successors, (4500), 15 states have internal predecessors, (4500), 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 09:24:17,492 INFO L307 CegarLoopForPetriNet]: 265 programPoint places, 12 predicate places. [2023-11-30 09:24:17,492 INFO L500 AbstractCegarLoop]: Abstraction has has 277 places, 355 transitions, 1715 flow [2023-11-30 09:24:17,493 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 216.83333333333334) internal successors, (2602), 12 states have internal predecessors, (2602), 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 09:24:17,493 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:24:17,493 INFO L232 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:24:17,500 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 09:24:17,698 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 09:24:17,700 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2023-11-30 09:24:17,701 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:24:17,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1659484655, now seen corresponding path program 2 times [2023-11-30 09:24:17,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:24:17,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446949191] [2023-11-30 09:24:17,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:24:17,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:24:17,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:24:17,886 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:24:17,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:24:17,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446949191] [2023-11-30 09:24:17,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446949191] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 09:24:17,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1028232348] [2023-11-30 09:24:17,886 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-30 09:24:17,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:24:17,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:24:17,887 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 09:24:17,916 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 09:24:17,977 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-30 09:24:17,977 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 09:24:17,978 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-30 09:24:17,981 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:24:18,101 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-30 09:24:18,102 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 09:24:18,235 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-30 09:24:18,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1028232348] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 09:24:18,235 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 09:24:18,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 7] total 17 [2023-11-30 09:24:18,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484978691] [2023-11-30 09:24:18,235 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 09:24:18,236 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-30 09:24:18,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:24:18,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-30 09:24:18,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2023-11-30 09:24:18,239 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 300 [2023-11-30 09:24:18,241 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 355 transitions, 1715 flow. Second operand has 18 states, 18 states have (on average 192.77777777777777) internal successors, (3470), 18 states have internal predecessors, (3470), 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 09:24:18,241 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:24:18,241 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 300 [2023-11-30 09:24:18,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:24:19,266 INFO L124 PetriNetUnfolderBase]: 396/1394 cut-off events. [2023-11-30 09:24:19,267 INFO L125 PetriNetUnfolderBase]: For 1144/1390 co-relation queries the response was YES. [2023-11-30 09:24:19,268 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4465 conditions, 1394 events. 396/1394 cut-off events. For 1144/1390 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 7811 event pairs, 224 based on Foata normal form. 0/1126 useless extension candidates. Maximal degree in co-relation 3096. Up to 710 conditions per place. [2023-11-30 09:24:19,274 INFO L140 encePairwiseOnDemand]: 264/300 looper letters, 136 selfloop transitions, 99 changer transitions 6/401 dead transitions. [2023-11-30 09:24:19,274 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 401 transitions, 2553 flow [2023-11-30 09:24:19,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-11-30 09:24:19,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2023-11-30 09:24:19,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 9506 transitions. [2023-11-30 09:24:19,287 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6466666666666666 [2023-11-30 09:24:19,287 INFO L72 ComplementDD]: Start complementDD. Operand 49 states and 9506 transitions. [2023-11-30 09:24:19,287 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 9506 transitions. [2023-11-30 09:24:19,290 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:24:19,291 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 49 states and 9506 transitions. [2023-11-30 09:24:19,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 50 states, 49 states have (on average 194.0) internal successors, (9506), 49 states have internal predecessors, (9506), 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 09:24:19,320 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 50 states, 50 states have (on average 300.0) internal successors, (15000), 50 states have internal predecessors, (15000), 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 09:24:19,324 INFO L81 ComplementDD]: Finished complementDD. Result has 50 states, 50 states have (on average 300.0) internal successors, (15000), 50 states have internal predecessors, (15000), 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 09:24:19,324 INFO L307 CegarLoopForPetriNet]: 265 programPoint places, 55 predicate places. [2023-11-30 09:24:19,324 INFO L500 AbstractCegarLoop]: Abstraction has has 320 places, 401 transitions, 2553 flow [2023-11-30 09:24:19,325 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 192.77777777777777) internal successors, (3470), 18 states have internal predecessors, (3470), 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 09:24:19,326 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:24:19,326 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:24:19,332 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-30 09:24:19,530 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:24:19,531 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2023-11-30 09:24:19,531 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:24:19,531 INFO L85 PathProgramCache]: Analyzing trace with hash 582862214, now seen corresponding path program 1 times [2023-11-30 09:24:19,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:24:19,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161419181] [2023-11-30 09:24:19,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:24:19,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:24:19,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:24:19,626 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 09:24:19,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:24:19,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161419181] [2023-11-30 09:24:19,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161419181] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:24:19,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 09:24:19,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 09:24:19,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176596775] [2023-11-30 09:24:19,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:24:19,632 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 09:24:19,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:24:19,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 09:24:19,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 09:24:19,634 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 300 [2023-11-30 09:24:19,639 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 401 transitions, 2553 flow. Second operand has 3 states, 3 states have (on average 254.33333333333334) internal successors, (763), 3 states have internal predecessors, (763), 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 09:24:19,639 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:24:19,639 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 300 [2023-11-30 09:24:19,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:24:19,784 INFO L124 PetriNetUnfolderBase]: 363/1233 cut-off events. [2023-11-30 09:24:19,785 INFO L125 PetriNetUnfolderBase]: For 1419/1635 co-relation queries the response was YES. [2023-11-30 09:24:19,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4629 conditions, 1233 events. 363/1233 cut-off events. For 1419/1635 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 6328 event pairs, 82 based on Foata normal form. 7/1017 useless extension candidates. Maximal degree in co-relation 3300. Up to 669 conditions per place. [2023-11-30 09:24:19,793 INFO L140 encePairwiseOnDemand]: 296/300 looper letters, 25 selfloop transitions, 3 changer transitions 6/408 dead transitions. [2023-11-30 09:24:19,793 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 322 places, 408 transitions, 2688 flow [2023-11-30 09:24:19,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 09:24:19,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 09:24:19,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 785 transitions. [2023-11-30 09:24:19,795 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8722222222222222 [2023-11-30 09:24:19,795 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 785 transitions. [2023-11-30 09:24:19,795 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 785 transitions. [2023-11-30 09:24:19,795 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:24:19,795 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 785 transitions. [2023-11-30 09:24:19,797 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 261.6666666666667) internal successors, (785), 3 states have internal predecessors, (785), 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 09:24:19,797 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 300.0) internal successors, (1200), 4 states have internal predecessors, (1200), 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 09:24:19,798 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 300.0) internal successors, (1200), 4 states have internal predecessors, (1200), 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 09:24:19,798 INFO L307 CegarLoopForPetriNet]: 265 programPoint places, 57 predicate places. [2023-11-30 09:24:19,798 INFO L500 AbstractCegarLoop]: Abstraction has has 322 places, 408 transitions, 2688 flow [2023-11-30 09:24:19,798 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 254.33333333333334) internal successors, (763), 3 states have internal predecessors, (763), 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 09:24:19,798 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:24:19,799 INFO L232 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:24:19,799 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-30 09:24:19,799 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2023-11-30 09:24:19,799 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:24:19,799 INFO L85 PathProgramCache]: Analyzing trace with hash 369933368, now seen corresponding path program 1 times [2023-11-30 09:24:19,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:24:19,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403482984] [2023-11-30 09:24:19,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:24:19,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:24:19,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:24:20,039 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:24:20,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:24:20,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403482984] [2023-11-30 09:24:20,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403482984] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 09:24:20,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1037732546] [2023-11-30 09:24:20,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:24:20,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:24:20,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:24:20,041 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 09:24:20,072 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 09:24:20,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:24:20,143 INFO L262 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-30 09:24:20,146 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:24:20,221 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:24:20,221 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 09:24:20,450 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:24:20,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1037732546] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 09:24:20,450 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 09:24:20,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 31 [2023-11-30 09:24:20,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231348207] [2023-11-30 09:24:20,450 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 09:24:20,451 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-11-30 09:24:20,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:24:20,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-11-30 09:24:20,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=271, Invalid=721, Unknown=0, NotChecked=0, Total=992 [2023-11-30 09:24:20,454 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 214 out of 300 [2023-11-30 09:24:20,457 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 408 transitions, 2688 flow. Second operand has 32 states, 32 states have (on average 217.40625) internal successors, (6957), 32 states have internal predecessors, (6957), 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 09:24:20,458 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:24:20,458 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 214 of 300 [2023-11-30 09:24:20,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:24:21,329 INFO L124 PetriNetUnfolderBase]: 387/1529 cut-off events. [2023-11-30 09:24:21,329 INFO L125 PetriNetUnfolderBase]: For 2549/2819 co-relation queries the response was YES. [2023-11-30 09:24:21,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6723 conditions, 1529 events. 387/1529 cut-off events. For 2549/2819 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 7486 event pairs, 82 based on Foata normal form. 0/1282 useless extension candidates. Maximal degree in co-relation 3783. Up to 890 conditions per place. [2023-11-30 09:24:21,341 INFO L140 encePairwiseOnDemand]: 280/300 looper letters, 265 selfloop transitions, 174 changer transitions 6/629 dead transitions. [2023-11-30 09:24:21,341 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 365 places, 629 transitions, 5776 flow [2023-11-30 09:24:21,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-11-30 09:24:21,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2023-11-30 09:24:21,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 9862 transitions. [2023-11-30 09:24:21,352 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7471212121212121 [2023-11-30 09:24:21,352 INFO L72 ComplementDD]: Start complementDD. Operand 44 states and 9862 transitions. [2023-11-30 09:24:21,352 INFO L73 IsDeterministic]: Start isDeterministic. Operand 44 states and 9862 transitions. [2023-11-30 09:24:21,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:24:21,355 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 44 states and 9862 transitions. [2023-11-30 09:24:21,365 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 45 states, 44 states have (on average 224.13636363636363) internal successors, (9862), 44 states have internal predecessors, (9862), 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 09:24:21,379 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 45 states, 45 states have (on average 300.0) internal successors, (13500), 45 states have internal predecessors, (13500), 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 09:24:21,382 INFO L81 ComplementDD]: Finished complementDD. Result has 45 states, 45 states have (on average 300.0) internal successors, (13500), 45 states have internal predecessors, (13500), 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 09:24:21,382 INFO L307 CegarLoopForPetriNet]: 265 programPoint places, 100 predicate places. [2023-11-30 09:24:21,383 INFO L500 AbstractCegarLoop]: Abstraction has has 365 places, 629 transitions, 5776 flow [2023-11-30 09:24:21,384 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 217.40625) internal successors, (6957), 32 states have internal predecessors, (6957), 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 09:24:21,384 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:24:21,384 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:24:21,391 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-30 09:24:21,588 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:24:21,589 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2023-11-30 09:24:21,589 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:24:21,589 INFO L85 PathProgramCache]: Analyzing trace with hash 258424833, now seen corresponding path program 1 times [2023-11-30 09:24:21,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:24:21,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062549000] [2023-11-30 09:24:21,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:24:21,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:24:21,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:24:21,667 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 09:24:21,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:24:21,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062549000] [2023-11-30 09:24:21,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062549000] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:24:21,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 09:24:21,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 09:24:21,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560089031] [2023-11-30 09:24:21,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:24:21,669 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 09:24:21,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:24:21,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 09:24:21,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 09:24:21,670 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 300 [2023-11-30 09:24:21,670 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 365 places, 629 transitions, 5776 flow. Second operand has 3 states, 3 states have (on average 254.33333333333334) internal successors, (763), 3 states have internal predecessors, (763), 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 09:24:21,670 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:24:21,670 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 300 [2023-11-30 09:24:21,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:24:21,890 INFO L124 PetriNetUnfolderBase]: 258/1296 cut-off events. [2023-11-30 09:24:21,890 INFO L125 PetriNetUnfolderBase]: For 2714/2894 co-relation queries the response was YES. [2023-11-30 09:24:21,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5686 conditions, 1296 events. 258/1296 cut-off events. For 2714/2894 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 5542 event pairs, 58 based on Foata normal form. 15/1110 useless extension candidates. Maximal degree in co-relation 2847. Up to 712 conditions per place. [2023-11-30 09:24:21,902 INFO L140 encePairwiseOnDemand]: 296/300 looper letters, 30 selfloop transitions, 2 changer transitions 6/633 dead transitions. [2023-11-30 09:24:21,904 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 367 places, 633 transitions, 5899 flow [2023-11-30 09:24:21,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 09:24:21,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 09:24:21,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 787 transitions. [2023-11-30 09:24:21,906 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8744444444444445 [2023-11-30 09:24:21,906 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 787 transitions. [2023-11-30 09:24:21,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 787 transitions. [2023-11-30 09:24:21,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:24:21,906 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 787 transitions. [2023-11-30 09:24:21,907 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 262.3333333333333) internal successors, (787), 3 states have internal predecessors, (787), 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 09:24:21,909 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 300.0) internal successors, (1200), 4 states have internal predecessors, (1200), 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 09:24:21,909 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 300.0) internal successors, (1200), 4 states have internal predecessors, (1200), 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 09:24:21,910 INFO L307 CegarLoopForPetriNet]: 265 programPoint places, 102 predicate places. [2023-11-30 09:24:21,910 INFO L500 AbstractCegarLoop]: Abstraction has has 367 places, 633 transitions, 5899 flow [2023-11-30 09:24:21,910 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 254.33333333333334) internal successors, (763), 3 states have internal predecessors, (763), 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 09:24:21,910 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:24:21,910 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:24:21,910 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-30 09:24:21,910 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2023-11-30 09:24:21,911 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:24:21,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1631112056, now seen corresponding path program 1 times [2023-11-30 09:24:21,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:24:21,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883006583] [2023-11-30 09:24:21,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:24:21,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:24:21,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:24:21,980 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 09:24:21,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:24:21,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883006583] [2023-11-30 09:24:21,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883006583] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:24:21,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 09:24:21,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 09:24:21,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295442724] [2023-11-30 09:24:21,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:24:21,982 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 09:24:21,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:24:21,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 09:24:21,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 09:24:21,984 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 300 [2023-11-30 09:24:21,984 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 367 places, 633 transitions, 5899 flow. Second operand has 3 states, 3 states have (on average 255.0) internal successors, (765), 3 states have internal predecessors, (765), 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 09:24:21,984 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:24:21,985 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 300 [2023-11-30 09:24:21,985 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:24:22,194 INFO L124 PetriNetUnfolderBase]: 258/1207 cut-off events. [2023-11-30 09:24:22,194 INFO L125 PetriNetUnfolderBase]: For 3256/4096 co-relation queries the response was YES. [2023-11-30 09:24:22,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5934 conditions, 1207 events. 258/1207 cut-off events. For 3256/4096 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 4648 event pairs, 56 based on Foata normal form. 17/1008 useless extension candidates. Maximal degree in co-relation 3074. Up to 714 conditions per place. [2023-11-30 09:24:22,201 INFO L140 encePairwiseOnDemand]: 296/300 looper letters, 29 selfloop transitions, 2 changer transitions 10/636 dead transitions. [2023-11-30 09:24:22,201 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 369 places, 636 transitions, 6017 flow [2023-11-30 09:24:22,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 09:24:22,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 09:24:22,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 791 transitions. [2023-11-30 09:24:22,202 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8788888888888889 [2023-11-30 09:24:22,204 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 791 transitions. [2023-11-30 09:24:22,204 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 791 transitions. [2023-11-30 09:24:22,205 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:24:22,205 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 791 transitions. [2023-11-30 09:24:22,207 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 263.6666666666667) internal successors, (791), 3 states have internal predecessors, (791), 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 09:24:22,208 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 300.0) internal successors, (1200), 4 states have internal predecessors, (1200), 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 09:24:22,208 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 300.0) internal successors, (1200), 4 states have internal predecessors, (1200), 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 09:24:22,210 INFO L307 CegarLoopForPetriNet]: 265 programPoint places, 104 predicate places. [2023-11-30 09:24:22,210 INFO L500 AbstractCegarLoop]: Abstraction has has 369 places, 636 transitions, 6017 flow [2023-11-30 09:24:22,210 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 255.0) internal successors, (765), 3 states have internal predecessors, (765), 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 09:24:22,210 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:24:22,210 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:24:22,210 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-30 09:24:22,211 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2023-11-30 09:24:22,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:24:22,211 INFO L85 PathProgramCache]: Analyzing trace with hash 352845441, now seen corresponding path program 1 times [2023-11-30 09:24:22,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:24:22,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689320572] [2023-11-30 09:24:22,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:24:22,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:24:22,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:24:22,336 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 09:24:22,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:24:22,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689320572] [2023-11-30 09:24:22,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689320572] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:24:22,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 09:24:22,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-30 09:24:22,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989526424] [2023-11-30 09:24:22,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:24:22,338 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 09:24:22,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:24:22,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 09:24:22,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-30 09:24:22,339 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 300 [2023-11-30 09:24:22,339 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 369 places, 636 transitions, 6017 flow. Second operand has 6 states, 6 states have (on average 215.83333333333334) internal successors, (1295), 6 states have internal predecessors, (1295), 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 09:24:22,339 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:24:22,339 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 300 [2023-11-30 09:24:22,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:24:22,661 INFO L124 PetriNetUnfolderBase]: 287/1710 cut-off events. [2023-11-30 09:24:22,662 INFO L125 PetriNetUnfolderBase]: For 5672/6632 co-relation queries the response was YES. [2023-11-30 09:24:22,664 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8728 conditions, 1710 events. 287/1710 cut-off events. For 5672/6632 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 7757 event pairs, 56 based on Foata normal form. 3/1458 useless extension candidates. Maximal degree in co-relation 5277. Up to 982 conditions per place. [2023-11-30 09:24:22,672 INFO L140 encePairwiseOnDemand]: 289/300 looper letters, 485 selfloop transitions, 12 changer transitions 48/843 dead transitions. [2023-11-30 09:24:22,672 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 377 places, 843 transitions, 9520 flow [2023-11-30 09:24:22,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-30 09:24:22,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-30 09:24:22,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1989 transitions. [2023-11-30 09:24:22,674 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7366666666666667 [2023-11-30 09:24:22,675 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1989 transitions. [2023-11-30 09:24:22,675 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1989 transitions. [2023-11-30 09:24:22,675 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:24:22,675 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1989 transitions. [2023-11-30 09:24:22,677 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 221.0) internal successors, (1989), 9 states have internal predecessors, (1989), 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 09:24:22,679 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 300.0) internal successors, (3000), 10 states have internal predecessors, (3000), 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 09:24:22,679 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 300.0) internal successors, (3000), 10 states have internal predecessors, (3000), 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 09:24:22,680 INFO L307 CegarLoopForPetriNet]: 265 programPoint places, 112 predicate places. [2023-11-30 09:24:22,680 INFO L500 AbstractCegarLoop]: Abstraction has has 377 places, 843 transitions, 9520 flow [2023-11-30 09:24:22,680 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 215.83333333333334) internal successors, (1295), 6 states have internal predecessors, (1295), 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 09:24:22,680 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:24:22,680 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:24:22,680 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-30 09:24:22,680 INFO L425 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2023-11-30 09:24:22,680 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:24:22,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1595932010, now seen corresponding path program 1 times [2023-11-30 09:24:22,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:24:22,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695725644] [2023-11-30 09:24:22,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:24:22,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:24:22,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:24:22,802 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-30 09:24:22,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:24:22,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695725644] [2023-11-30 09:24:22,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695725644] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:24:22,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 09:24:22,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 09:24:22,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19701693] [2023-11-30 09:24:22,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:24:22,803 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 09:24:22,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:24:22,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 09:24:22,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-30 09:24:22,805 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 300 [2023-11-30 09:24:22,805 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 377 places, 843 transitions, 9520 flow. Second operand has 6 states, 6 states have (on average 216.5) internal successors, (1299), 6 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:24:22,805 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:24:22,805 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 300 [2023-11-30 09:24:22,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:24:23,293 INFO L124 PetriNetUnfolderBase]: 287/1842 cut-off events. [2023-11-30 09:24:23,293 INFO L125 PetriNetUnfolderBase]: For 8220/9312 co-relation queries the response was YES. [2023-11-30 09:24:23,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9890 conditions, 1842 events. 287/1842 cut-off events. For 8220/9312 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 8930 event pairs, 56 based on Foata normal form. 1/1582 useless extension candidates. Maximal degree in co-relation 5943. Up to 1000 conditions per place. [2023-11-30 09:24:23,305 INFO L140 encePairwiseOnDemand]: 288/300 looper letters, 482 selfloop transitions, 13 changer transitions 68/861 dead transitions. [2023-11-30 09:24:23,305 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 385 places, 861 transitions, 10990 flow [2023-11-30 09:24:23,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-30 09:24:23,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-30 09:24:23,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1962 transitions. [2023-11-30 09:24:23,307 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7266666666666667 [2023-11-30 09:24:23,307 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1962 transitions. [2023-11-30 09:24:23,308 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1962 transitions. [2023-11-30 09:24:23,308 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:24:23,308 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1962 transitions. [2023-11-30 09:24:23,310 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 218.0) internal successors, (1962), 9 states have internal predecessors, (1962), 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 09:24:23,312 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 300.0) internal successors, (3000), 10 states have internal predecessors, (3000), 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 09:24:23,313 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 300.0) internal successors, (3000), 10 states have internal predecessors, (3000), 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 09:24:23,313 INFO L307 CegarLoopForPetriNet]: 265 programPoint places, 120 predicate places. [2023-11-30 09:24:23,313 INFO L500 AbstractCegarLoop]: Abstraction has has 385 places, 861 transitions, 10990 flow [2023-11-30 09:24:23,314 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 216.5) internal successors, (1299), 6 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 09:24:23,314 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:24:23,314 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:24:23,314 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-30 09:24:23,314 INFO L425 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2023-11-30 09:24:23,315 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:24:23,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1870422873, now seen corresponding path program 1 times [2023-11-30 09:24:23,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:24:23,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608180205] [2023-11-30 09:24:23,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:24:23,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:24:23,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:24:23,518 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-30 09:24:23,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:24:23,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608180205] [2023-11-30 09:24:23,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608180205] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 09:24:23,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1886737283] [2023-11-30 09:24:23,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:24:23,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:24:23,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:24:23,520 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 09:24:23,523 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 09:24:23,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:24:23,645 INFO L262 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-30 09:24:23,648 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:24:23,711 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-30 09:24:23,711 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 09:24:23,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1886737283] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:24:23,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 09:24:23,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2023-11-30 09:24:23,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056239575] [2023-11-30 09:24:23,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:24:23,712 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 09:24:23,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:24:23,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 09:24:23,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-30 09:24:23,713 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 248 out of 300 [2023-11-30 09:24:23,714 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 385 places, 861 transitions, 10990 flow. Second operand has 4 states, 4 states have (on average 251.25) internal successors, (1005), 4 states have internal predecessors, (1005), 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 09:24:23,714 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:24:23,714 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 248 of 300 [2023-11-30 09:24:23,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:24:24,085 INFO L124 PetriNetUnfolderBase]: 200/1691 cut-off events. [2023-11-30 09:24:24,086 INFO L125 PetriNetUnfolderBase]: For 8230/9034 co-relation queries the response was YES. [2023-11-30 09:24:24,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8761 conditions, 1691 events. 200/1691 cut-off events. For 8230/9034 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 7898 event pairs, 36 based on Foata normal form. 0/1519 useless extension candidates. Maximal degree in co-relation 5963. Up to 879 conditions per place. [2023-11-30 09:24:24,094 INFO L140 encePairwiseOnDemand]: 295/300 looper letters, 28 selfloop transitions, 3 changer transitions 68/857 dead transitions. [2023-11-30 09:24:24,094 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 386 places, 857 transitions, 11010 flow [2023-11-30 09:24:24,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 09:24:24,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 09:24:24,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1016 transitions. [2023-11-30 09:24:24,095 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8466666666666667 [2023-11-30 09:24:24,096 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1016 transitions. [2023-11-30 09:24:24,096 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1016 transitions. [2023-11-30 09:24:24,096 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:24:24,096 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1016 transitions. [2023-11-30 09:24:24,097 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 254.0) internal successors, (1016), 4 states have internal predecessors, (1016), 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 09:24:24,098 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 300.0) internal successors, (1500), 5 states have internal predecessors, (1500), 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 09:24:24,098 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 300.0) internal successors, (1500), 5 states have internal predecessors, (1500), 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 09:24:24,098 INFO L307 CegarLoopForPetriNet]: 265 programPoint places, 121 predicate places. [2023-11-30 09:24:24,098 INFO L500 AbstractCegarLoop]: Abstraction has has 386 places, 857 transitions, 11010 flow [2023-11-30 09:24:24,099 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 251.25) internal successors, (1005), 4 states have internal predecessors, (1005), 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 09:24:24,099 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:24:24,099 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:24:24,104 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-30 09:24:24,304 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-30 09:24:24,304 INFO L425 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2023-11-30 09:24:24,304 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:24:24,304 INFO L85 PathProgramCache]: Analyzing trace with hash 2114952970, now seen corresponding path program 1 times [2023-11-30 09:24:24,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:24:24,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811987871] [2023-11-30 09:24:24,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:24:24,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:24:24,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:24:24,441 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-30 09:24:24,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:24:24,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811987871] [2023-11-30 09:24:24,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811987871] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:24:24,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 09:24:24,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 09:24:24,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746960996] [2023-11-30 09:24:24,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:24:24,442 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 09:24:24,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:24:24,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 09:24:24,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-30 09:24:24,443 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 300 [2023-11-30 09:24:24,444 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 386 places, 857 transitions, 11010 flow. Second operand has 6 states, 6 states have (on average 217.5) internal successors, (1305), 6 states have internal predecessors, (1305), 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 09:24:24,444 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:24:24,444 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 300 [2023-11-30 09:24:24,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:24:25,036 INFO L124 PetriNetUnfolderBase]: 234/2419 cut-off events. [2023-11-30 09:24:25,036 INFO L125 PetriNetUnfolderBase]: For 14753/15647 co-relation queries the response was YES. [2023-11-30 09:24:25,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12826 conditions, 2419 events. 234/2419 cut-off events. For 14753/15647 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 13980 event pairs, 38 based on Foata normal form. 3/2200 useless extension candidates. Maximal degree in co-relation 9277. Up to 1187 conditions per place. [2023-11-30 09:24:25,048 INFO L140 encePairwiseOnDemand]: 288/300 looper letters, 605 selfloop transitions, 24 changer transitions 170/1097 dead transitions. [2023-11-30 09:24:25,048 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 394 places, 1097 transitions, 16640 flow [2023-11-30 09:24:25,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-30 09:24:25,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-30 09:24:25,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1979 transitions. [2023-11-30 09:24:25,050 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7329629629629629 [2023-11-30 09:24:25,050 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1979 transitions. [2023-11-30 09:24:25,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1979 transitions. [2023-11-30 09:24:25,051 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:24:25,051 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1979 transitions. [2023-11-30 09:24:25,053 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 219.88888888888889) internal successors, (1979), 9 states have internal predecessors, (1979), 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 09:24:25,055 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 300.0) internal successors, (3000), 10 states have internal predecessors, (3000), 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 09:24:25,055 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 300.0) internal successors, (3000), 10 states have internal predecessors, (3000), 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 09:24:25,056 INFO L307 CegarLoopForPetriNet]: 265 programPoint places, 129 predicate places. [2023-11-30 09:24:25,057 INFO L500 AbstractCegarLoop]: Abstraction has has 394 places, 1097 transitions, 16640 flow [2023-11-30 09:24:25,057 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 217.5) internal successors, (1305), 6 states have internal predecessors, (1305), 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 09:24:25,057 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:24:25,057 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:24:25,057 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-30 09:24:25,057 INFO L425 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2023-11-30 09:24:25,058 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:24:25,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1232995527, now seen corresponding path program 1 times [2023-11-30 09:24:25,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:24:25,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504209496] [2023-11-30 09:24:25,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:24:25,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:24:25,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:24:25,257 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-30 09:24:25,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:24:25,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504209496] [2023-11-30 09:24:25,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504209496] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 09:24:25,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [124425383] [2023-11-30 09:24:25,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:24:25,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:24:25,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:24:25,258 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 09:24:25,261 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-30 09:24:25,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:24:25,393 INFO L262 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-30 09:24:25,395 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:24:25,559 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-30 09:24:25,559 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 09:24:25,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [124425383] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:24:25,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 09:24:25,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2023-11-30 09:24:25,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978622825] [2023-11-30 09:24:25,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:24:25,560 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 09:24:25,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:24:25,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 09:24:25,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-30 09:24:25,561 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 300 [2023-11-30 09:24:25,561 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 394 places, 1097 transitions, 16640 flow. Second operand has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 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 09:24:25,561 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:24:25,561 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 300 [2023-11-30 09:24:25,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:24:26,182 INFO L124 PetriNetUnfolderBase]: 341/2793 cut-off events. [2023-11-30 09:24:26,182 INFO L125 PetriNetUnfolderBase]: For 21046/23278 co-relation queries the response was YES. [2023-11-30 09:24:26,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15847 conditions, 2793 events. 341/2793 cut-off events. For 21046/23278 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 17086 event pairs, 53 based on Foata normal form. 13/2508 useless extension candidates. Maximal degree in co-relation 9297. Up to 1369 conditions per place. [2023-11-30 09:24:26,198 INFO L140 encePairwiseOnDemand]: 295/300 looper letters, 46 selfloop transitions, 12 changer transitions 175/1133 dead transitions. [2023-11-30 09:24:26,199 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 1133 transitions, 17824 flow [2023-11-30 09:24:26,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 09:24:26,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 09:24:26,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1051 transitions. [2023-11-30 09:24:26,200 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8758333333333334 [2023-11-30 09:24:26,200 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1051 transitions. [2023-11-30 09:24:26,200 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1051 transitions. [2023-11-30 09:24:26,201 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:24:26,201 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1051 transitions. [2023-11-30 09:24:26,202 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 262.75) internal successors, (1051), 4 states have internal predecessors, (1051), 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 09:24:26,203 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 300.0) internal successors, (1500), 5 states have internal predecessors, (1500), 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 09:24:26,203 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 300.0) internal successors, (1500), 5 states have internal predecessors, (1500), 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 09:24:26,203 INFO L307 CegarLoopForPetriNet]: 265 programPoint places, 132 predicate places. [2023-11-30 09:24:26,203 INFO L500 AbstractCegarLoop]: Abstraction has has 397 places, 1133 transitions, 17824 flow [2023-11-30 09:24:26,204 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 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 09:24:26,204 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:24:26,204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:24:26,212 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-30 09:24:26,409 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:24:26,409 INFO L425 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2023-11-30 09:24:26,409 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:24:26,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1939223182, now seen corresponding path program 1 times [2023-11-30 09:24:26,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:24:26,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343669318] [2023-11-30 09:24:26,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:24:26,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:24:26,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:24:26,666 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-30 09:24:26,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:24:26,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343669318] [2023-11-30 09:24:26,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343669318] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 09:24:26,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2040790081] [2023-11-30 09:24:26,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:24:26,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:24:26,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:24:26,668 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 09:24:26,696 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-30 09:24:26,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:24:26,807 INFO L262 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-30 09:24:26,810 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:24:27,057 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-30 09:24:27,057 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 09:24:27,377 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-30 09:24:27,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2040790081] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 09:24:27,378 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 09:24:27,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 9] total 21 [2023-11-30 09:24:27,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127641358] [2023-11-30 09:24:27,378 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 09:24:27,378 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-11-30 09:24:27,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:24:27,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-11-30 09:24:27,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=352, Unknown=0, NotChecked=0, Total=420 [2023-11-30 09:24:27,381 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 300 [2023-11-30 09:24:27,383 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 397 places, 1133 transitions, 17824 flow. Second operand has 21 states, 21 states have (on average 197.38095238095238) internal successors, (4145), 21 states have internal predecessors, (4145), 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 09:24:27,384 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:24:27,384 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 300 [2023-11-30 09:24:27,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:24:29,672 INFO L124 PetriNetUnfolderBase]: 474/4981 cut-off events. [2023-11-30 09:24:29,672 INFO L125 PetriNetUnfolderBase]: For 42075/44639 co-relation queries the response was YES. [2023-11-30 09:24:29,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29285 conditions, 4981 events. 474/4981 cut-off events. For 42075/44639 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 38656 event pairs, 54 based on Foata normal form. 38/4570 useless extension candidates. Maximal degree in co-relation 19497. Up to 2351 conditions per place. [2023-11-30 09:24:29,694 INFO L140 encePairwiseOnDemand]: 266/300 looper letters, 1214 selfloop transitions, 346 changer transitions 472/2192 dead transitions. [2023-11-30 09:24:29,694 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 463 places, 2192 transitions, 40098 flow [2023-11-30 09:24:29,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2023-11-30 09:24:29,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2023-11-30 09:24:29,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 13071 transitions. [2023-11-30 09:24:29,704 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6502985074626866 [2023-11-30 09:24:29,705 INFO L72 ComplementDD]: Start complementDD. Operand 67 states and 13071 transitions. [2023-11-30 09:24:29,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 67 states and 13071 transitions. [2023-11-30 09:24:29,709 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:24:29,709 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 67 states and 13071 transitions. [2023-11-30 09:24:29,723 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 68 states, 67 states have (on average 195.08955223880596) internal successors, (13071), 67 states have internal predecessors, (13071), 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 09:24:29,741 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 68 states, 68 states have (on average 300.0) internal successors, (20400), 68 states have internal predecessors, (20400), 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 09:24:29,747 INFO L81 ComplementDD]: Finished complementDD. Result has 68 states, 68 states have (on average 300.0) internal successors, (20400), 68 states have internal predecessors, (20400), 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 09:24:29,747 INFO L307 CegarLoopForPetriNet]: 265 programPoint places, 198 predicate places. [2023-11-30 09:24:29,747 INFO L500 AbstractCegarLoop]: Abstraction has has 463 places, 2192 transitions, 40098 flow [2023-11-30 09:24:29,748 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 197.38095238095238) internal successors, (4145), 21 states have internal predecessors, (4145), 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 09:24:29,748 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:24:29,748 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:24:29,754 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-30 09:24:29,954 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:24:29,954 INFO L425 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2023-11-30 09:24:29,955 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:24:29,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1881450292, now seen corresponding path program 2 times [2023-11-30 09:24:29,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:24:29,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016419128] [2023-11-30 09:24:29,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:24:29,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:24:29,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:24:30,185 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-30 09:24:30,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:24:30,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016419128] [2023-11-30 09:24:30,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016419128] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 09:24:30,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1768313852] [2023-11-30 09:24:30,185 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-30 09:24:30,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:24:30,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:24:30,186 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 09:24:30,209 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-30 09:24:30,325 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-30 09:24:30,325 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 09:24:30,327 INFO L262 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-30 09:24:30,330 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:24:30,451 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-11-30 09:24:30,451 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 09:24:30,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1768313852] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:24:30,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 09:24:30,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 11 [2023-11-30 09:24:30,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743233238] [2023-11-30 09:24:30,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:24:30,452 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 09:24:30,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:24:30,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 09:24:30,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-11-30 09:24:30,453 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 248 out of 300 [2023-11-30 09:24:30,454 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 463 places, 2192 transitions, 40098 flow. Second operand has 4 states, 4 states have (on average 252.25) internal successors, (1009), 4 states have internal predecessors, (1009), 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 09:24:30,454 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:24:30,454 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 248 of 300 [2023-11-30 09:24:30,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:24:32,046 INFO L124 PetriNetUnfolderBase]: 373/4744 cut-off events. [2023-11-30 09:24:32,047 INFO L125 PetriNetUnfolderBase]: For 41263/42551 co-relation queries the response was YES. [2023-11-30 09:24:32,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27319 conditions, 4744 events. 373/4744 cut-off events. For 41263/42551 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 36676 event pairs, 35 based on Foata normal form. 2/4395 useless extension candidates. Maximal degree in co-relation 19550. Up to 2193 conditions per place. [2023-11-30 09:24:32,064 INFO L140 encePairwiseOnDemand]: 295/300 looper letters, 8 selfloop transitions, 3 changer transitions 604/2183 dead transitions. [2023-11-30 09:24:32,065 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 464 places, 2183 transitions, 40304 flow [2023-11-30 09:24:32,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 09:24:32,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 09:24:32,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1014 transitions. [2023-11-30 09:24:32,078 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.845 [2023-11-30 09:24:32,078 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1014 transitions. [2023-11-30 09:24:32,078 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1014 transitions. [2023-11-30 09:24:32,078 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:24:32,078 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1014 transitions. [2023-11-30 09:24:32,079 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 253.5) internal successors, (1014), 4 states have internal predecessors, (1014), 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 09:24:32,080 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 300.0) internal successors, (1500), 5 states have internal predecessors, (1500), 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 09:24:32,080 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 300.0) internal successors, (1500), 5 states have internal predecessors, (1500), 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 09:24:32,081 INFO L307 CegarLoopForPetriNet]: 265 programPoint places, 199 predicate places. [2023-11-30 09:24:32,081 INFO L500 AbstractCegarLoop]: Abstraction has has 464 places, 2183 transitions, 40304 flow [2023-11-30 09:24:32,082 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 252.25) internal successors, (1009), 4 states have internal predecessors, (1009), 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 09:24:32,082 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:24:32,082 INFO L232 CegarLoopForPetriNet]: trace histogram [15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:24:32,087 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-30 09:24:32,286 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-30 09:24:32,287 INFO L425 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2023-11-30 09:24:32,287 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:24:32,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1126790432, now seen corresponding path program 2 times [2023-11-30 09:24:32,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:24:32,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216595637] [2023-11-30 09:24:32,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:24:32,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:24:32,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:24:32,827 INFO L134 CoverageAnalysis]: Checked inductivity of 1022 backedges. 0 proven. 1022 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:24:32,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:24:32,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216595637] [2023-11-30 09:24:32,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216595637] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 09:24:32,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [771263679] [2023-11-30 09:24:32,827 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-30 09:24:32,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:24:32,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:24:32,828 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 09:24:32,847 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-30 09:24:33,016 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-30 09:24:33,017 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 09:24:33,017 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-30 09:24:33,019 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:24:33,243 INFO L134 CoverageAnalysis]: Checked inductivity of 1022 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-11-30 09:24:33,243 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 09:24:33,442 INFO L134 CoverageAnalysis]: Checked inductivity of 1022 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-11-30 09:24:33,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [771263679] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 09:24:33,443 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 09:24:33,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 7, 7] total 37 [2023-11-30 09:24:33,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077314686] [2023-11-30 09:24:33,443 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 09:24:33,444 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-11-30 09:24:33,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:24:33,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-11-30 09:24:33,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=313, Invalid=1093, Unknown=0, NotChecked=0, Total=1406 [2023-11-30 09:24:33,447 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 300 [2023-11-30 09:24:33,450 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 464 places, 2183 transitions, 40304 flow. Second operand has 38 states, 38 states have (on average 192.92105263157896) internal successors, (7331), 38 states have internal predecessors, (7331), 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 09:24:33,450 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:24:33,450 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 300 [2023-11-30 09:24:33,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:24:37,746 INFO L124 PetriNetUnfolderBase]: 399/5050 cut-off events. [2023-11-30 09:24:37,746 INFO L125 PetriNetUnfolderBase]: For 51322/52780 co-relation queries the response was YES. [2023-11-30 09:24:37,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32084 conditions, 5050 events. 399/5050 cut-off events. For 51322/52780 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 38739 event pairs, 39 based on Foata normal form. 2/4678 useless extension candidates. Maximal degree in co-relation 23885. Up to 2419 conditions per place. [2023-11-30 09:24:37,762 INFO L140 encePairwiseOnDemand]: 269/300 looper letters, 926 selfloop transitions, 712 changer transitions 649/2391 dead transitions. [2023-11-30 09:24:37,762 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 581 places, 2391 transitions, 48608 flow [2023-11-30 09:24:37,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2023-11-30 09:24:37,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2023-11-30 09:24:37,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 22995 transitions. [2023-11-30 09:24:37,775 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6441176470588236 [2023-11-30 09:24:37,775 INFO L72 ComplementDD]: Start complementDD. Operand 119 states and 22995 transitions. [2023-11-30 09:24:37,775 INFO L73 IsDeterministic]: Start isDeterministic. Operand 119 states and 22995 transitions. [2023-11-30 09:24:37,779 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:24:37,779 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 119 states and 22995 transitions. [2023-11-30 09:24:37,798 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 120 states, 119 states have (on average 193.23529411764707) internal successors, (22995), 119 states have internal predecessors, (22995), 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 09:24:37,819 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 120 states, 120 states have (on average 300.0) internal successors, (36000), 120 states have internal predecessors, (36000), 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 09:24:37,824 INFO L81 ComplementDD]: Finished complementDD. Result has 120 states, 120 states have (on average 300.0) internal successors, (36000), 120 states have internal predecessors, (36000), 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 09:24:37,825 INFO L307 CegarLoopForPetriNet]: 265 programPoint places, 316 predicate places. [2023-11-30 09:24:37,825 INFO L500 AbstractCegarLoop]: Abstraction has has 581 places, 2391 transitions, 48608 flow [2023-11-30 09:24:37,826 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 192.92105263157896) internal successors, (7331), 38 states have internal predecessors, (7331), 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 09:24:37,826 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:24:37,826 INFO L232 CegarLoopForPetriNet]: trace histogram [17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:24:37,831 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-30 09:24:38,030 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-30 09:24:38,030 INFO L425 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2023-11-30 09:24:38,031 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:24:38,031 INFO L85 PathProgramCache]: Analyzing trace with hash 420729368, now seen corresponding path program 1 times [2023-11-30 09:24:38,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:24:38,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520449551] [2023-11-30 09:24:38,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:24:38,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:24:38,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:24:38,729 INFO L134 CoverageAnalysis]: Checked inductivity of 1328 backedges. 0 proven. 1328 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:24:38,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:24:38,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520449551] [2023-11-30 09:24:38,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520449551] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 09:24:38,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1277673118] [2023-11-30 09:24:38,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:24:38,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:24:38,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:24:38,730 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 09:24:38,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-30 09:24:38,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:24:38,872 INFO L262 TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 35 conjunts are in the unsatisfiable core [2023-11-30 09:24:38,875 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:24:39,026 INFO L134 CoverageAnalysis]: Checked inductivity of 1328 backedges. 0 proven. 1328 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:24:39,026 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 09:24:39,898 INFO L134 CoverageAnalysis]: Checked inductivity of 1328 backedges. 0 proven. 1328 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:24:39,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1277673118] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 09:24:39,899 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 09:24:39,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35, 35] total 71 [2023-11-30 09:24:39,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116952369] [2023-11-30 09:24:39,899 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 09:24:39,899 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2023-11-30 09:24:39,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:24:39,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2023-11-30 09:24:39,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1331, Invalid=3781, Unknown=0, NotChecked=0, Total=5112 [2023-11-30 09:24:39,907 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 214 out of 300 [2023-11-30 09:24:39,912 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 581 places, 2391 transitions, 48608 flow. Second operand has 72 states, 72 states have (on average 217.52777777777777) internal successors, (15662), 72 states have internal predecessors, (15662), 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 09:24:39,912 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:24:39,912 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 214 of 300 [2023-11-30 09:24:39,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:24:46,846 INFO L124 PetriNetUnfolderBase]: 633/7882 cut-off events. [2023-11-30 09:24:46,846 INFO L125 PetriNetUnfolderBase]: For 87359/88959 co-relation queries the response was YES. [2023-11-30 09:24:46,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58646 conditions, 7882 events. 633/7882 cut-off events. For 87359/88959 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 56698 event pairs, 38 based on Foata normal form. 2/7276 useless extension candidates. Maximal degree in co-relation 50008. Up to 4540 conditions per place. [2023-11-30 09:24:46,872 INFO L140 encePairwiseOnDemand]: 281/300 looper letters, 1805 selfloop transitions, 1383 changer transitions 973/4350 dead transitions. [2023-11-30 09:24:46,873 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 684 places, 4350 transitions, 96592 flow [2023-11-30 09:24:46,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2023-11-30 09:24:46,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2023-11-30 09:24:46,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 23239 transitions. [2023-11-30 09:24:46,884 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7448397435897436 [2023-11-30 09:24:46,884 INFO L72 ComplementDD]: Start complementDD. Operand 104 states and 23239 transitions. [2023-11-30 09:24:46,884 INFO L73 IsDeterministic]: Start isDeterministic. Operand 104 states and 23239 transitions. [2023-11-30 09:24:46,887 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:24:46,888 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 104 states and 23239 transitions. [2023-11-30 09:24:46,907 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 105 states, 104 states have (on average 223.45192307692307) internal successors, (23239), 104 states have internal predecessors, (23239), 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 09:24:46,925 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 105 states, 105 states have (on average 300.0) internal successors, (31500), 105 states have internal predecessors, (31500), 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 09:24:46,929 INFO L81 ComplementDD]: Finished complementDD. Result has 105 states, 105 states have (on average 300.0) internal successors, (31500), 105 states have internal predecessors, (31500), 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 09:24:46,929 INFO L307 CegarLoopForPetriNet]: 265 programPoint places, 419 predicate places. [2023-11-30 09:24:46,929 INFO L500 AbstractCegarLoop]: Abstraction has has 684 places, 4350 transitions, 96592 flow [2023-11-30 09:24:46,931 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 72 states, 72 states have (on average 217.52777777777777) internal successors, (15662), 72 states have internal predecessors, (15662), 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 09:24:46,931 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:24:46,931 INFO L232 CegarLoopForPetriNet]: trace histogram [35, 35, 35, 35, 35, 35, 35, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:24:46,936 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-30 09:24:47,136 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-30 09:24:47,136 INFO L425 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2023-11-30 09:24:47,136 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:24:47,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1869486130, now seen corresponding path program 2 times [2023-11-30 09:24:47,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:24:47,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630039344] [2023-11-30 09:24:47,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:24:47,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:24:47,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:24:49,623 INFO L134 CoverageAnalysis]: Checked inductivity of 5882 backedges. 0 proven. 5882 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:24:49,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:24:49,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630039344] [2023-11-30 09:24:49,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630039344] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 09:24:49,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [885917605] [2023-11-30 09:24:49,624 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-30 09:24:49,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:24:49,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:24:49,625 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 09:24:49,627 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-30 09:24:49,764 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-30 09:24:49,765 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 09:24:49,766 INFO L262 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-30 09:24:49,775 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:24:50,213 INFO L134 CoverageAnalysis]: Checked inductivity of 5882 backedges. 0 proven. 238 refuted. 0 times theorem prover too weak. 5644 trivial. 0 not checked. [2023-11-30 09:24:50,213 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 09:24:50,614 INFO L134 CoverageAnalysis]: Checked inductivity of 5882 backedges. 0 proven. 238 refuted. 0 times theorem prover too weak. 5644 trivial. 0 not checked. [2023-11-30 09:24:50,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [885917605] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 09:24:50,615 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 09:24:50,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [71, 7, 7] total 77 [2023-11-30 09:24:50,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329428592] [2023-11-30 09:24:50,615 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 09:24:50,616 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 78 states [2023-11-30 09:24:50,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:24:50,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2023-11-30 09:24:50,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1413, Invalid=4593, Unknown=0, NotChecked=0, Total=6006 [2023-11-30 09:24:50,623 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 300 [2023-11-30 09:24:50,630 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 684 places, 4350 transitions, 96592 flow. Second operand has 78 states, 78 states have (on average 192.84615384615384) internal successors, (15042), 78 states have internal predecessors, (15042), 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 09:24:50,630 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:24:50,631 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 300 [2023-11-30 09:24:50,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:25:07,270 INFO L124 PetriNetUnfolderBase]: 659/8132 cut-off events. [2023-11-30 09:25:07,270 INFO L125 PetriNetUnfolderBase]: For 105348/107342 co-relation queries the response was YES. [2023-11-30 09:25:07,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65728 conditions, 8132 events. 659/8132 cut-off events. For 105348/107342 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 58376 event pairs, 36 based on Foata normal form. 2/7506 useless extension candidates. Maximal degree in co-relation 56644. Up to 4724 conditions per place. [2023-11-30 09:25:07,295 INFO L140 encePairwiseOnDemand]: 270/300 looper letters, 0 selfloop transitions, 0 changer transitions 4525/4525 dead transitions. [2023-11-30 09:25:07,295 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 941 places, 4525 transitions, 109254 flow [2023-11-30 09:25:07,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 259 states. [2023-11-30 09:25:07,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states. [2023-11-30 09:25:07,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 49992 transitions. [2023-11-30 09:25:07,318 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6433976833976834 [2023-11-30 09:25:07,318 INFO L72 ComplementDD]: Start complementDD. Operand 259 states and 49992 transitions. [2023-11-30 09:25:07,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 259 states and 49992 transitions. [2023-11-30 09:25:07,325 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:25:07,325 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 259 states and 49992 transitions. [2023-11-30 09:25:07,357 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 260 states, 259 states have (on average 193.01930501930502) internal successors, (49992), 259 states have internal predecessors, (49992), 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 09:25:07,404 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 260 states, 260 states have (on average 300.0) internal successors, (78000), 260 states have internal predecessors, (78000), 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 09:25:07,417 INFO L81 ComplementDD]: Finished complementDD. Result has 260 states, 260 states have (on average 300.0) internal successors, (78000), 260 states have internal predecessors, (78000), 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 09:25:07,418 INFO L307 CegarLoopForPetriNet]: 265 programPoint places, 676 predicate places. [2023-11-30 09:25:07,418 INFO L500 AbstractCegarLoop]: Abstraction has has 941 places, 4525 transitions, 109254 flow [2023-11-30 09:25:07,419 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 78 states, 78 states have (on average 192.84615384615384) internal successors, (15042), 78 states have internal predecessors, (15042), 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 09:25:07,426 INFO L143 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/popl20-commit-1.wvr.c_BEv2_AllErrorsAtOnce [2023-11-30 09:25:07,584 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 41 remaining) [2023-11-30 09:25:07,585 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 41 remaining) [2023-11-30 09:25:07,585 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 41 remaining) [2023-11-30 09:25:07,585 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 41 remaining) [2023-11-30 09:25:07,585 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 41 remaining) [2023-11-30 09:25:07,586 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 41 remaining) [2023-11-30 09:25:07,586 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 41 remaining) [2023-11-30 09:25:07,586 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 41 remaining) [2023-11-30 09:25:07,586 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 41 remaining) [2023-11-30 09:25:07,586 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 41 remaining) [2023-11-30 09:25:07,586 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 41 remaining) [2023-11-30 09:25:07,586 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 41 remaining) [2023-11-30 09:25:07,586 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 41 remaining) [2023-11-30 09:25:07,586 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 41 remaining) [2023-11-30 09:25:07,586 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 41 remaining) [2023-11-30 09:25:07,586 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 41 remaining) [2023-11-30 09:25:07,586 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 41 remaining) [2023-11-30 09:25:07,586 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 41 remaining) [2023-11-30 09:25:07,586 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 41 remaining) [2023-11-30 09:25:07,586 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 41 remaining) [2023-11-30 09:25:07,586 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 41 remaining) [2023-11-30 09:25:07,586 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 41 remaining) [2023-11-30 09:25:07,586 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 41 remaining) [2023-11-30 09:25:07,587 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 41 remaining) [2023-11-30 09:25:07,587 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 41 remaining) [2023-11-30 09:25:07,587 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 41 remaining) [2023-11-30 09:25:07,587 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 41 remaining) [2023-11-30 09:25:07,587 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 41 remaining) [2023-11-30 09:25:07,587 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 41 remaining) [2023-11-30 09:25:07,587 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 41 remaining) [2023-11-30 09:25:07,587 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 41 remaining) [2023-11-30 09:25:07,587 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 41 remaining) [2023-11-30 09:25:07,587 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 41 remaining) [2023-11-30 09:25:07,587 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 41 remaining) [2023-11-30 09:25:07,587 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 41 remaining) [2023-11-30 09:25:07,587 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 41 remaining) [2023-11-30 09:25:07,587 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 41 remaining) [2023-11-30 09:25:07,588 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 41 remaining) [2023-11-30 09:25:07,588 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 41 remaining) [2023-11-30 09:25:07,588 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 41 remaining) [2023-11-30 09:25:07,588 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 41 remaining) [2023-11-30 09:25:07,596 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-30 09:25:07,792 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-30 09:25:07,793 INFO L457 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:25:07,796 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-30 09:25:07,796 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-30 09:25:07,801 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 09:25:07 BasicIcfg [2023-11-30 09:25:07,801 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-30 09:25:07,801 INFO L158 Benchmark]: Toolchain (without parser) took 54345.35ms. Allocated memory was 541.1MB in the beginning and 2.7GB in the end (delta: 2.1GB). Free memory was 499.5MB in the beginning and 665.2MB in the end (delta: -165.7MB). Peak memory consumption was 2.0GB. Max. memory is 16.0GB. [2023-11-30 09:25:07,801 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 358.6MB. Free memory is still 307.8MB. There was no memory consumed. Max. memory is 16.0GB. [2023-11-30 09:25:07,801 INFO L158 Benchmark]: CACSL2BoogieTranslator took 200.24ms. Allocated memory is still 541.1MB. Free memory was 498.9MB in the beginning and 486.6MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-11-30 09:25:07,802 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.19ms. Allocated memory is still 541.1MB. Free memory was 486.6MB in the beginning and 483.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-11-30 09:25:07,802 INFO L158 Benchmark]: Boogie Preprocessor took 43.94ms. Allocated memory is still 541.1MB. Free memory was 483.6MB in the beginning and 480.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 09:25:07,802 INFO L158 Benchmark]: RCFGBuilder took 706.93ms. Allocated memory is still 541.1MB. Free memory was 480.9MB in the beginning and 507.7MB in the end (delta: -26.9MB). Peak memory consumption was 77.1MB. Max. memory is 16.0GB. [2023-11-30 09:25:07,802 INFO L158 Benchmark]: TraceAbstraction took 53351.32ms. Allocated memory was 541.1MB in the beginning and 2.7GB in the end (delta: 2.1GB). Free memory was 506.7MB in the beginning and 665.2MB in the end (delta: -158.5MB). Peak memory consumption was 2.0GB. Max. memory is 16.0GB. [2023-11-30 09:25:07,803 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 358.6MB. Free memory is still 307.8MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 200.24ms. Allocated memory is still 541.1MB. Free memory was 498.9MB in the beginning and 486.6MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 37.19ms. Allocated memory is still 541.1MB. Free memory was 486.6MB in the beginning and 483.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 43.94ms. Allocated memory is still 541.1MB. Free memory was 483.6MB in the beginning and 480.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 706.93ms. Allocated memory is still 541.1MB. Free memory was 480.9MB in the beginning and 507.7MB in the end (delta: -26.9MB). Peak memory consumption was 77.1MB. Max. memory is 16.0GB. * TraceAbstraction took 53351.32ms. Allocated memory was 541.1MB in the beginning and 2.7GB in the end (delta: 2.1GB). Free memory was 506.7MB in the beginning and 665.2MB in the end (delta: -158.5MB). Peak memory consumption was 2.0GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 61]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 61]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 67]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 67]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 73]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 73]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 103]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 103]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 158]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 158]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 158]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 158]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 158]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 158]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 333 locations, 41 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 53.2s, OverallIterations: 18, TraceHistogramMax: 35, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 39.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10928 SdHoareTripleChecker+Valid, 4.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10928 mSDsluCounter, 2121 SdHoareTripleChecker+Invalid, 3.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1743 mSDsCounter, 1497 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7399 IncrementalHoareTripleChecker+Invalid, 8896 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1497 mSolverCounterUnsat, 378 mSDtfsCounter, 7399 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4675 GetRequests, 3753 SyntacticMatches, 16 SemanticMatches, 906 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55957 ImplicationChecksByTransitivity, 16.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=109254occurred in iteration=18, InterpolantAutomatonStates: 716, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 9.6s InterpolantComputationTime, 5637 NumberOfCodeBlocks, 5067 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 7168 ConstructedInterpolants, 0 QuantifiedInterpolants, 16382 SizeOfPredicates, 78 NumberOfNonLiveVariables, 3815 ConjunctsInSsa, 104 ConjunctsInUnsatCore, 36 InterpolantComputations, 11 PerfectInterpolantSequences, 13326/25676 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 22 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-30 09:25:07,820 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...