/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -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 -i ../../../trunk/examples/svcomp/pthread-deagle/arithmetic_prog_ok.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-a20a710-m [2023-12-09 15:40:08,349 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-09 15:40:08,404 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 [2023-12-09 15:40:08,425 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-09 15:40:08,425 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-09 15:40:08,426 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-09 15:40:08,426 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-09 15:40:08,427 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-09 15:40:08,427 INFO L153 SettingsManager]: * Use SBE=true [2023-12-09 15:40:08,427 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-09 15:40:08,428 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-09 15:40:08,428 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-09 15:40:08,428 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-09 15:40:08,429 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-09 15:40:08,429 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-09 15:40:08,429 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-09 15:40:08,430 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-09 15:40:08,430 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-09 15:40:08,430 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-09 15:40:08,431 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-09 15:40:08,431 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-09 15:40:08,432 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-09 15:40:08,432 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-09 15:40:08,432 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-09 15:40:08,433 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-09 15:40:08,433 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:40:08,433 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-09 15:40:08,434 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-09 15:40:08,434 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-09 15:40:08,434 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-09 15:40:08,434 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-09 15:40:08,435 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-09 15:40:08,435 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-09 15:40:08,435 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-12-09 15:40:08,621 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-09 15:40:08,637 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-09 15:40:08,639 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-09 15:40:08,640 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-09 15:40:08,641 INFO L274 PluginConnector]: CDTParser initialized [2023-12-09 15:40:08,642 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-deagle/arithmetic_prog_ok.i [2023-12-09 15:40:09,802 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-09 15:40:10,051 INFO L384 CDTParser]: Found 1 translation units. [2023-12-09 15:40:10,051 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/arithmetic_prog_ok.i [2023-12-09 15:40:10,066 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/862dca318/3a9342fa379b4ac59cf2af9b4f256e70/FLAG667030bb9 [2023-12-09 15:40:10,079 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/862dca318/3a9342fa379b4ac59cf2af9b4f256e70 [2023-12-09 15:40:10,081 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-09 15:40:10,082 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-09 15:40:10,084 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-09 15:40:10,084 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-09 15:40:10,088 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-09 15:40:10,088 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:40:10" (1/1) ... [2023-12-09 15:40:10,089 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51f219ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:40:10, skipping insertion in model container [2023-12-09 15:40:10,089 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:40:10" (1/1) ... [2023-12-09 15:40:10,140 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-09 15:40:10,432 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/arithmetic_prog_ok.i[39757,39770] [2023-12-09 15:40:10,440 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:40:10,457 INFO L202 MainTranslator]: Completed pre-run [2023-12-09 15:40:10,512 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/arithmetic_prog_ok.i[39757,39770] [2023-12-09 15:40:10,513 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:40:10,565 INFO L206 MainTranslator]: Completed translation [2023-12-09 15:40:10,566 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:40:10 WrapperNode [2023-12-09 15:40:10,566 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-09 15:40:10,567 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-09 15:40:10,567 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-09 15:40:10,567 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-09 15:40:10,573 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:40:10" (1/1) ... [2023-12-09 15:40:10,586 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:40:10" (1/1) ... [2023-12-09 15:40:10,606 INFO L138 Inliner]: procedures = 244, calls = 54, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 80 [2023-12-09 15:40:10,606 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-09 15:40:10,607 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-09 15:40:10,607 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-09 15:40:10,607 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-09 15:40:10,614 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:40:10" (1/1) ... [2023-12-09 15:40:10,614 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:40:10" (1/1) ... [2023-12-09 15:40:10,618 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:40:10" (1/1) ... [2023-12-09 15:40:10,618 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:40:10" (1/1) ... [2023-12-09 15:40:10,622 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:40:10" (1/1) ... [2023-12-09 15:40:10,625 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:40:10" (1/1) ... [2023-12-09 15:40:10,627 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:40:10" (1/1) ... [2023-12-09 15:40:10,628 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:40:10" (1/1) ... [2023-12-09 15:40:10,641 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-09 15:40:10,642 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-09 15:40:10,642 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-09 15:40:10,642 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-09 15:40:10,642 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:40:10" (1/1) ... [2023-12-09 15:40:10,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:40:10,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:40:10,678 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) [2023-12-09 15:40:10,680 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 [2023-12-09 15:40:10,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-09 15:40:10,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-09 15:40:10,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-12-09 15:40:10,702 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-12-09 15:40:10,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-09 15:40:10,702 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-12-09 15:40:10,703 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-12-09 15:40:10,703 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-12-09 15:40:10,703 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-12-09 15:40:10,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-09 15:40:10,703 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-12-09 15:40:10,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-09 15:40:10,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-09 15:40:10,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-09 15:40:10,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-09 15:40:10,705 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-09 15:40:10,820 INFO L241 CfgBuilder]: Building ICFG [2023-12-09 15:40:10,822 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-09 15:40:11,061 INFO L282 CfgBuilder]: Performing block encoding [2023-12-09 15:40:11,087 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-09 15:40:11,087 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-12-09 15:40:11,089 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:40:11 BoogieIcfgContainer [2023-12-09 15:40:11,089 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-09 15:40:11,092 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-09 15:40:11,092 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-09 15:40:11,095 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-09 15:40:11,095 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:40:10" (1/3) ... [2023-12-09 15:40:11,096 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@219bfdee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:40:11, skipping insertion in model container [2023-12-09 15:40:11,096 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:40:10" (2/3) ... [2023-12-09 15:40:11,096 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@219bfdee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:40:11, skipping insertion in model container [2023-12-09 15:40:11,096 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:40:11" (3/3) ... [2023-12-09 15:40:11,098 INFO L112 eAbstractionObserver]: Analyzing ICFG arithmetic_prog_ok.i [2023-12-09 15:40:11,114 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-09 15:40:11,114 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-09 15:40:11,114 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-09 15:40:11,175 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-12-09 15:40:11,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 132 places, 135 transitions, 284 flow [2023-12-09 15:40:11,284 INFO L124 PetriNetUnfolderBase]: 10/133 cut-off events. [2023-12-09 15:40:11,284 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-12-09 15:40:11,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142 conditions, 133 events. 10/133 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 155 event pairs, 0 based on Foata normal form. 0/122 useless extension candidates. Maximal degree in co-relation 83. Up to 3 conditions per place. [2023-12-09 15:40:11,293 INFO L82 GeneralOperation]: Start removeDead. Operand has 132 places, 135 transitions, 284 flow [2023-12-09 15:40:11,298 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 120 places, 121 transitions, 254 flow [2023-12-09 15:40:11,308 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 15:40:11,313 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;@589d977a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 15:40:11,314 INFO L363 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-12-09 15:40:11,345 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 15:40:11,345 INFO L124 PetriNetUnfolderBase]: 8/120 cut-off events. [2023-12-09 15:40:11,345 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-12-09 15:40:11,345 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:40:11,346 INFO L233 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] [2023-12-09 15:40:11,346 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:40:11,351 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:40:11,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1478554042, now seen corresponding path program 1 times [2023-12-09 15:40:11,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:40:11,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282635142] [2023-12-09 15:40:11,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:40:11,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:40:11,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:40:11,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:40:11,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:40:11,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282635142] [2023-12-09 15:40:11,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282635142] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:40:11,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:40:11,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-09 15:40:11,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587246983] [2023-12-09 15:40:11,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:40:11,812 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-09 15:40:11,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:40:11,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-09 15:40:11,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-09 15:40:11,859 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 135 [2023-12-09 15:40:11,865 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 121 transitions, 254 flow. Second operand has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:11,865 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:40:11,865 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 135 [2023-12-09 15:40:11,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:40:12,086 INFO L124 PetriNetUnfolderBase]: 133/571 cut-off events. [2023-12-09 15:40:12,086 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2023-12-09 15:40:12,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 840 conditions, 571 events. 133/571 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 3044 event pairs, 67 based on Foata normal form. 58/571 useless extension candidates. Maximal degree in co-relation 726. Up to 134 conditions per place. [2023-12-09 15:40:12,096 INFO L140 encePairwiseOnDemand]: 128/135 looper letters, 28 selfloop transitions, 2 changer transitions 0/129 dead transitions. [2023-12-09 15:40:12,097 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 129 transitions, 333 flow [2023-12-09 15:40:12,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-09 15:40:12,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-09 15:40:12,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 372 transitions. [2023-12-09 15:40:12,112 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.9185185185185185 [2023-12-09 15:40:12,112 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 372 transitions. [2023-12-09 15:40:12,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 372 transitions. [2023-12-09 15:40:12,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:40:12,116 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 372 transitions. [2023-12-09 15:40:12,120 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:12,124 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 135.0) internal successors, (540), 4 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:12,125 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 135.0) internal successors, (540), 4 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:12,129 INFO L308 CegarLoopForPetriNet]: 120 programPoint places, 2 predicate places. [2023-12-09 15:40:12,130 INFO L500 AbstractCegarLoop]: Abstraction has has 122 places, 129 transitions, 333 flow [2023-12-09 15:40:12,130 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:12,130 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:40:12,131 INFO L233 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] [2023-12-09 15:40:12,131 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-09 15:40:12,131 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:40:12,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:40:12,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1019424076, now seen corresponding path program 1 times [2023-12-09 15:40:12,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:40:12,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860077907] [2023-12-09 15:40:12,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:40:12,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:40:12,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:40:12,442 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:40:12,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:40:12,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860077907] [2023-12-09 15:40:12,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860077907] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:40:12,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1717431785] [2023-12-09 15:40:12,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:40:12,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:40:12,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:40:12,452 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) [2023-12-09 15:40:12,457 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-09 15:40:12,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:40:12,623 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-09 15:40:12,630 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:40:12,677 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-09 15:40:12,677 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-09 15:40:12,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1717431785] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:40:12,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-09 15:40:12,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-12-09 15:40:12,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167163732] [2023-12-09 15:40:12,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:40:12,680 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-09 15:40:12,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:40:12,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-09 15:40:12,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-09 15:40:12,683 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 135 [2023-12-09 15:40:12,684 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 129 transitions, 333 flow. Second operand has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:12,684 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:40:12,684 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 135 [2023-12-09 15:40:12,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:40:12,880 INFO L124 PetriNetUnfolderBase]: 394/1233 cut-off events. [2023-12-09 15:40:12,880 INFO L125 PetriNetUnfolderBase]: For 371/423 co-relation queries the response was YES. [2023-12-09 15:40:12,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2415 conditions, 1233 events. 394/1233 cut-off events. For 371/423 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 7679 event pairs, 154 based on Foata normal form. 2/1110 useless extension candidates. Maximal degree in co-relation 2195. Up to 361 conditions per place. [2023-12-09 15:40:12,893 INFO L140 encePairwiseOnDemand]: 132/135 looper letters, 48 selfloop transitions, 2 changer transitions 0/150 dead transitions. [2023-12-09 15:40:12,894 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 150 transitions, 512 flow [2023-12-09 15:40:12,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-09 15:40:12,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-09 15:40:12,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 361 transitions. [2023-12-09 15:40:12,897 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.891358024691358 [2023-12-09 15:40:12,897 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 361 transitions. [2023-12-09 15:40:12,898 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 361 transitions. [2023-12-09 15:40:12,898 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:40:12,898 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 361 transitions. [2023-12-09 15:40:12,900 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:12,902 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 135.0) internal successors, (540), 4 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:12,903 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 135.0) internal successors, (540), 4 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:12,904 INFO L308 CegarLoopForPetriNet]: 120 programPoint places, 4 predicate places. [2023-12-09 15:40:12,904 INFO L500 AbstractCegarLoop]: Abstraction has has 124 places, 150 transitions, 512 flow [2023-12-09 15:40:12,904 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:12,904 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:40:12,905 INFO L233 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] [2023-12-09 15:40:12,914 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-09 15:40:13,110 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 [2023-12-09 15:40:13,111 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:40:13,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:40:13,111 INFO L85 PathProgramCache]: Analyzing trace with hash 748770730, now seen corresponding path program 1 times [2023-12-09 15:40:13,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:40:13,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691736578] [2023-12-09 15:40:13,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:40:13,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:40:13,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:40:13,341 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-09 15:40:13,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:40:13,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691736578] [2023-12-09 15:40:13,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691736578] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:40:13,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1700042812] [2023-12-09 15:40:13,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:40:13,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:40:13,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:40:13,353 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) [2023-12-09 15:40:13,404 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-09 15:40:13,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:40:13,504 INFO L262 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-09 15:40:13,509 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:40:13,578 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-09 15:40:13,578 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:40:13,627 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-09 15:40:13,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1700042812] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 15:40:13,628 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-09 15:40:13,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-12-09 15:40:13,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615154085] [2023-12-09 15:40:13,628 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-09 15:40:13,633 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:40:13,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:40:13,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:40:13,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:40:13,637 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 135 [2023-12-09 15:40:13,639 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 150 transitions, 512 flow. Second operand has 10 states, 10 states have (on average 113.1) internal successors, (1131), 10 states have internal predecessors, (1131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:13,639 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:40:13,640 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 135 [2023-12-09 15:40:13,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:40:14,014 INFO L124 PetriNetUnfolderBase]: 558/1717 cut-off events. [2023-12-09 15:40:14,014 INFO L125 PetriNetUnfolderBase]: For 1295/1506 co-relation queries the response was YES. [2023-12-09 15:40:14,021 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4190 conditions, 1717 events. 558/1717 cut-off events. For 1295/1506 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 11009 event pairs, 157 based on Foata normal form. 18/1566 useless extension candidates. Maximal degree in co-relation 3939. Up to 560 conditions per place. [2023-12-09 15:40:14,031 INFO L140 encePairwiseOnDemand]: 129/135 looper letters, 107 selfloop transitions, 9 changer transitions 0/218 dead transitions. [2023-12-09 15:40:14,032 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 218 transitions, 1154 flow [2023-12-09 15:40:14,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-09 15:40:14,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-12-09 15:40:14,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1063 transitions. [2023-12-09 15:40:14,035 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8748971193415638 [2023-12-09 15:40:14,035 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1063 transitions. [2023-12-09 15:40:14,035 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1063 transitions. [2023-12-09 15:40:14,035 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:40:14,035 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1063 transitions. [2023-12-09 15:40:14,038 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 118.11111111111111) internal successors, (1063), 9 states have internal predecessors, (1063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:14,040 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 135.0) internal successors, (1350), 10 states have internal predecessors, (1350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:14,041 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 135.0) internal successors, (1350), 10 states have internal predecessors, (1350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:14,042 INFO L308 CegarLoopForPetriNet]: 120 programPoint places, 12 predicate places. [2023-12-09 15:40:14,042 INFO L500 AbstractCegarLoop]: Abstraction has has 132 places, 218 transitions, 1154 flow [2023-12-09 15:40:14,043 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 113.1) internal successors, (1131), 10 states have internal predecessors, (1131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:14,043 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:40:14,043 INFO L233 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:40:14,055 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-09 15:40:14,248 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 [2023-12-09 15:40:14,249 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:40:14,249 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:40:14,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1806735078, now seen corresponding path program 2 times [2023-12-09 15:40:14,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:40:14,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757511023] [2023-12-09 15:40:14,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:40:14,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:40:14,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:40:14,456 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 26 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-09 15:40:14,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:40:14,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757511023] [2023-12-09 15:40:14,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757511023] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:40:14,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [347346653] [2023-12-09 15:40:14,457 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-09 15:40:14,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:40:14,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:40:14,458 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) [2023-12-09 15:40:14,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-09 15:40:14,595 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-09 15:40:14,596 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-09 15:40:14,598 INFO L262 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-09 15:40:14,611 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:40:14,674 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-09 15:40:14,675 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-09 15:40:14,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [347346653] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:40:14,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-09 15:40:14,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-12-09 15:40:14,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604189857] [2023-12-09 15:40:14,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:40:14,676 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-09 15:40:14,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:40:14,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-09 15:40:14,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-09 15:40:14,679 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 135 [2023-12-09 15:40:14,680 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 218 transitions, 1154 flow. Second operand has 5 states, 5 states have (on average 111.0) internal successors, (555), 5 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:14,680 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:40:14,680 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 135 [2023-12-09 15:40:14,680 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:40:15,279 INFO L124 PetriNetUnfolderBase]: 1292/3446 cut-off events. [2023-12-09 15:40:15,279 INFO L125 PetriNetUnfolderBase]: For 4927/5286 co-relation queries the response was YES. [2023-12-09 15:40:15,286 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9802 conditions, 3446 events. 1292/3446 cut-off events. For 4927/5286 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 23266 event pairs, 222 based on Foata normal form. 51/3190 useless extension candidates. Maximal degree in co-relation 9364. Up to 1169 conditions per place. [2023-12-09 15:40:15,304 INFO L140 encePairwiseOnDemand]: 126/135 looper letters, 236 selfloop transitions, 18 changer transitions 0/361 dead transitions. [2023-12-09 15:40:15,304 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 361 transitions, 2641 flow [2023-12-09 15:40:15,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-09 15:40:15,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-12-09 15:40:15,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 827 transitions. [2023-12-09 15:40:15,307 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8751322751322751 [2023-12-09 15:40:15,307 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 827 transitions. [2023-12-09 15:40:15,307 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 827 transitions. [2023-12-09 15:40:15,307 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:40:15,307 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 827 transitions. [2023-12-09 15:40:15,309 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 118.14285714285714) internal successors, (827), 7 states have internal predecessors, (827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:15,312 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 135.0) internal successors, (1080), 8 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:15,312 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 135.0) internal successors, (1080), 8 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:15,314 INFO L308 CegarLoopForPetriNet]: 120 programPoint places, 18 predicate places. [2023-12-09 15:40:15,314 INFO L500 AbstractCegarLoop]: Abstraction has has 138 places, 361 transitions, 2641 flow [2023-12-09 15:40:15,314 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 111.0) internal successors, (555), 5 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:15,314 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:40:15,315 INFO L233 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:40:15,327 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-09 15:40:15,524 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 [2023-12-09 15:40:15,525 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:40:15,525 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:40:15,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1307319056, now seen corresponding path program 3 times [2023-12-09 15:40:15,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:40:15,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636646227] [2023-12-09 15:40:15,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:40:15,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:40:15,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:40:15,708 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 19 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-09 15:40:15,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:40:15,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636646227] [2023-12-09 15:40:15,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636646227] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:40:15,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2045388466] [2023-12-09 15:40:15,708 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-09 15:40:15,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:40:15,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:40:15,712 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) [2023-12-09 15:40:15,724 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-09 15:40:15,875 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-12-09 15:40:15,876 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-09 15:40:15,877 INFO L262 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-09 15:40:15,880 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:40:15,910 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-09 15:40:15,925 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-09 15:40:15,926 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-09 15:40:15,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2045388466] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:40:15,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-09 15:40:15,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-12-09 15:40:15,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781284667] [2023-12-09 15:40:15,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:40:15,928 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-09 15:40:15,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:40:15,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-09 15:40:15,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-09 15:40:15,930 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 135 [2023-12-09 15:40:15,931 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 361 transitions, 2641 flow. Second operand has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:15,931 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:40:15,931 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 135 [2023-12-09 15:40:15,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:40:16,152 INFO L124 PetriNetUnfolderBase]: 407/1420 cut-off events. [2023-12-09 15:40:16,153 INFO L125 PetriNetUnfolderBase]: For 6194/6645 co-relation queries the response was YES. [2023-12-09 15:40:16,156 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4422 conditions, 1420 events. 407/1420 cut-off events. For 6194/6645 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 8623 event pairs, 88 based on Foata normal form. 204/1479 useless extension candidates. Maximal degree in co-relation 4077. Up to 501 conditions per place. [2023-12-09 15:40:16,162 INFO L140 encePairwiseOnDemand]: 127/135 looper letters, 30 selfloop transitions, 105 changer transitions 0/254 dead transitions. [2023-12-09 15:40:16,163 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 254 transitions, 1964 flow [2023-12-09 15:40:16,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-09 15:40:16,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-09 15:40:16,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 349 transitions. [2023-12-09 15:40:16,164 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8617283950617284 [2023-12-09 15:40:16,165 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 349 transitions. [2023-12-09 15:40:16,165 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 349 transitions. [2023-12-09 15:40:16,165 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:40:16,165 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 349 transitions. [2023-12-09 15:40:16,166 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 116.33333333333333) internal successors, (349), 3 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:16,167 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 135.0) internal successors, (540), 4 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:16,167 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 135.0) internal successors, (540), 4 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:16,169 INFO L308 CegarLoopForPetriNet]: 120 programPoint places, 19 predicate places. [2023-12-09 15:40:16,169 INFO L500 AbstractCegarLoop]: Abstraction has has 139 places, 254 transitions, 1964 flow [2023-12-09 15:40:16,170 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:16,170 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:40:16,171 INFO L233 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:40:16,177 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-09 15:40:16,377 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:40:16,377 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:40:16,378 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:40:16,378 INFO L85 PathProgramCache]: Analyzing trace with hash -165434228, now seen corresponding path program 4 times [2023-12-09 15:40:16,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:40:16,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713372190] [2023-12-09 15:40:16,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:40:16,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:40:16,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:40:16,522 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 17 proven. 11 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-09 15:40:16,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:40:16,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713372190] [2023-12-09 15:40:16,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713372190] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:40:16,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [413676452] [2023-12-09 15:40:16,523 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-09 15:40:16,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:40:16,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:40:16,524 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) [2023-12-09 15:40:16,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-09 15:40:16,639 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-09 15:40:16,639 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-09 15:40:16,641 INFO L262 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-09 15:40:16,643 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:40:16,731 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-09 15:40:16,731 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-09 15:40:16,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [413676452] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:40:16,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-09 15:40:16,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2023-12-09 15:40:16,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81687753] [2023-12-09 15:40:16,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:40:16,732 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-09 15:40:16,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:40:16,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-09 15:40:16,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-12-09 15:40:16,734 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 135 [2023-12-09 15:40:16,735 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 254 transitions, 1964 flow. Second operand has 6 states, 6 states have (on average 109.0) internal successors, (654), 6 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:16,735 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:40:16,735 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 135 [2023-12-09 15:40:16,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:40:17,052 INFO L124 PetriNetUnfolderBase]: 450/1618 cut-off events. [2023-12-09 15:40:17,053 INFO L125 PetriNetUnfolderBase]: For 5949/6439 co-relation queries the response was YES. [2023-12-09 15:40:17,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5730 conditions, 1618 events. 450/1618 cut-off events. For 5949/6439 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 9545 event pairs, 119 based on Foata normal form. 69/1524 useless extension candidates. Maximal degree in co-relation 5203. Up to 568 conditions per place. [2023-12-09 15:40:17,066 INFO L140 encePairwiseOnDemand]: 124/135 looper letters, 149 selfloop transitions, 16 changer transitions 0/271 dead transitions. [2023-12-09 15:40:17,066 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 271 transitions, 2497 flow [2023-12-09 15:40:17,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-09 15:40:17,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-12-09 15:40:17,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 879 transitions. [2023-12-09 15:40:17,070 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8138888888888889 [2023-12-09 15:40:17,070 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 879 transitions. [2023-12-09 15:40:17,070 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 879 transitions. [2023-12-09 15:40:17,070 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:40:17,071 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 879 transitions. [2023-12-09 15:40:17,073 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 109.875) internal successors, (879), 8 states have internal predecessors, (879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:17,075 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 135.0) internal successors, (1215), 9 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:17,075 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 135.0) internal successors, (1215), 9 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:17,076 INFO L308 CegarLoopForPetriNet]: 120 programPoint places, 26 predicate places. [2023-12-09 15:40:17,076 INFO L500 AbstractCegarLoop]: Abstraction has has 146 places, 271 transitions, 2497 flow [2023-12-09 15:40:17,077 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 109.0) internal successors, (654), 6 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:17,077 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:40:17,077 INFO L233 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-09 15:40:17,084 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-09 15:40:17,283 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:40:17,284 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:40:17,284 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:40:17,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1749250870, now seen corresponding path program 5 times [2023-12-09 15:40:17,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:40:17,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808240004] [2023-12-09 15:40:17,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:40:17,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:40:17,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:40:17,492 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 17 proven. 25 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-09 15:40:17,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:40:17,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808240004] [2023-12-09 15:40:17,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808240004] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:40:17,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [84175878] [2023-12-09 15:40:17,493 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-12-09 15:40:17,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:40:17,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:40:17,494 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) [2023-12-09 15:40:17,514 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-09 15:40:17,635 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2023-12-09 15:40:17,637 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-09 15:40:17,638 INFO L262 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-09 15:40:17,641 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:40:17,774 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 6 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:40:17,774 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:40:17,893 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 6 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:40:17,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [84175878] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 15:40:17,893 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-09 15:40:17,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 9] total 14 [2023-12-09 15:40:17,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109507941] [2023-12-09 15:40:17,894 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-09 15:40:17,894 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-09 15:40:17,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:40:17,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-09 15:40:17,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-12-09 15:40:17,899 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 135 [2023-12-09 15:40:17,900 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 271 transitions, 2497 flow. Second operand has 14 states, 14 states have (on average 106.5) internal successors, (1491), 14 states have internal predecessors, (1491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:17,900 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:40:17,900 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 135 [2023-12-09 15:40:17,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:40:19,836 INFO L124 PetriNetUnfolderBase]: 1522/4624 cut-off events. [2023-12-09 15:40:19,837 INFO L125 PetriNetUnfolderBase]: For 11549/11841 co-relation queries the response was YES. [2023-12-09 15:40:19,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17358 conditions, 4624 events. 1522/4624 cut-off events. For 11549/11841 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 32062 event pairs, 82 based on Foata normal form. 46/4406 useless extension candidates. Maximal degree in co-relation 16809. Up to 1702 conditions per place. [2023-12-09 15:40:19,882 INFO L140 encePairwiseOnDemand]: 124/135 looper letters, 589 selfloop transitions, 148 changer transitions 4/843 dead transitions. [2023-12-09 15:40:19,882 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 843 transitions, 9066 flow [2023-12-09 15:40:19,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2023-12-09 15:40:19,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2023-12-09 15:40:19,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 8686 transitions. [2023-12-09 15:40:19,903 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8042592592592592 [2023-12-09 15:40:19,903 INFO L72 ComplementDD]: Start complementDD. Operand 80 states and 8686 transitions. [2023-12-09 15:40:19,903 INFO L73 IsDeterministic]: Start isDeterministic. Operand 80 states and 8686 transitions. [2023-12-09 15:40:19,909 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:40:19,909 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 80 states and 8686 transitions. [2023-12-09 15:40:19,930 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 81 states, 80 states have (on average 108.575) internal successors, (8686), 80 states have internal predecessors, (8686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:19,950 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 81 states, 81 states have (on average 135.0) internal successors, (10935), 81 states have internal predecessors, (10935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:19,953 INFO L81 ComplementDD]: Finished complementDD. Result has 81 states, 81 states have (on average 135.0) internal successors, (10935), 81 states have internal predecessors, (10935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:19,955 INFO L308 CegarLoopForPetriNet]: 120 programPoint places, 105 predicate places. [2023-12-09 15:40:19,955 INFO L500 AbstractCegarLoop]: Abstraction has has 225 places, 843 transitions, 9066 flow [2023-12-09 15:40:19,955 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 106.5) internal successors, (1491), 14 states have internal predecessors, (1491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:19,955 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:40:19,956 INFO L233 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:40:19,964 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-09 15:40:20,164 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:40:20,164 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:40:20,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:40:20,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1832181654, now seen corresponding path program 6 times [2023-12-09 15:40:20,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:40:20,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535839533] [2023-12-09 15:40:20,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:40:20,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:40:20,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:40:20,383 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 25 proven. 89 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-09 15:40:20,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:40:20,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535839533] [2023-12-09 15:40:20,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535839533] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:40:20,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [21765286] [2023-12-09 15:40:20,384 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-12-09 15:40:20,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:40:20,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:40:20,385 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) [2023-12-09 15:40:20,388 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-09 15:40:20,558 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2023-12-09 15:40:20,558 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-09 15:40:20,559 INFO L262 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-09 15:40:20,562 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:40:20,654 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 25 proven. 89 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-09 15:40:20,655 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:40:20,779 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 25 proven. 89 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-09 15:40:20,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [21765286] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 15:40:20,780 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-09 15:40:20,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 11 [2023-12-09 15:40:20,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987509874] [2023-12-09 15:40:20,780 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-09 15:40:20,781 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:40:20,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:40:20,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:40:20,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:40:20,783 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 135 [2023-12-09 15:40:20,784 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 843 transitions, 9066 flow. Second operand has 11 states, 11 states have (on average 112.0) internal successors, (1232), 11 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:20,786 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:40:20,786 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 135 [2023-12-09 15:40:20,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:40:22,007 INFO L124 PetriNetUnfolderBase]: 1641/4868 cut-off events. [2023-12-09 15:40:22,007 INFO L125 PetriNetUnfolderBase]: For 15605/16015 co-relation queries the response was YES. [2023-12-09 15:40:22,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20568 conditions, 4868 events. 1641/4868 cut-off events. For 15605/16015 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 33443 event pairs, 76 based on Foata normal form. 87/4692 useless extension candidates. Maximal degree in co-relation 19936. Up to 1815 conditions per place. [2023-12-09 15:40:22,054 INFO L140 encePairwiseOnDemand]: 129/135 looper letters, 596 selfloop transitions, 117 changer transitions 8/941 dead transitions. [2023-12-09 15:40:22,054 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 941 transitions, 11846 flow [2023-12-09 15:40:22,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-09 15:40:22,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-12-09 15:40:22,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1390 transitions. [2023-12-09 15:40:22,057 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8580246913580247 [2023-12-09 15:40:22,057 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1390 transitions. [2023-12-09 15:40:22,057 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1390 transitions. [2023-12-09 15:40:22,058 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:40:22,058 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1390 transitions. [2023-12-09 15:40:22,060 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 115.83333333333333) internal successors, (1390), 12 states have internal predecessors, (1390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:22,063 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 135.0) internal successors, (1755), 13 states have internal predecessors, (1755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:22,063 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 135.0) internal successors, (1755), 13 states have internal predecessors, (1755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:22,064 INFO L308 CegarLoopForPetriNet]: 120 programPoint places, 116 predicate places. [2023-12-09 15:40:22,064 INFO L500 AbstractCegarLoop]: Abstraction has has 236 places, 941 transitions, 11846 flow [2023-12-09 15:40:22,064 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 112.0) internal successors, (1232), 11 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:22,064 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:40:22,065 INFO L233 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:40:22,071 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-09 15:40:22,271 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:40:22,271 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:40:22,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:40:22,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1370788372, now seen corresponding path program 7 times [2023-12-09 15:40:22,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:40:22,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646293054] [2023-12-09 15:40:22,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:40:22,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:40:22,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:40:22,691 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 68 proven. 20 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-12-09 15:40:22,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:40:22,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646293054] [2023-12-09 15:40:22,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646293054] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:40:22,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [463975708] [2023-12-09 15:40:22,692 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-12-09 15:40:22,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:40:22,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:40:22,693 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) [2023-12-09 15:40:22,716 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-09 15:40:22,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:40:22,844 INFO L262 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-09 15:40:22,847 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:40:22,951 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 68 proven. 20 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-12-09 15:40:22,951 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:40:23,057 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 68 proven. 20 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-12-09 15:40:23,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [463975708] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 15:40:23,057 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-09 15:40:23,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 6 [2023-12-09 15:40:23,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640793680] [2023-12-09 15:40:23,057 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-09 15:40:23,058 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-09 15:40:23,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:40:23,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-09 15:40:23,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-09 15:40:23,060 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 135 [2023-12-09 15:40:23,060 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 941 transitions, 11846 flow. Second operand has 6 states, 6 states have (on average 110.0) internal successors, (660), 6 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:23,060 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:40:23,061 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 135 [2023-12-09 15:40:23,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:40:23,458 INFO L124 PetriNetUnfolderBase]: 561/1784 cut-off events. [2023-12-09 15:40:23,459 INFO L125 PetriNetUnfolderBase]: For 8630/8843 co-relation queries the response was YES. [2023-12-09 15:40:23,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8124 conditions, 1784 events. 561/1784 cut-off events. For 8630/8843 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 8693 event pairs, 29 based on Foata normal form. 43/1769 useless extension candidates. Maximal degree in co-relation 7522. Up to 618 conditions per place. [2023-12-09 15:40:23,478 INFO L140 encePairwiseOnDemand]: 126/135 looper letters, 230 selfloop transitions, 12 changer transitions 2/522 dead transitions. [2023-12-09 15:40:23,478 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 522 transitions, 6418 flow [2023-12-09 15:40:23,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-09 15:40:23,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-12-09 15:40:23,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 877 transitions. [2023-12-09 15:40:23,481 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.812037037037037 [2023-12-09 15:40:23,482 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 877 transitions. [2023-12-09 15:40:23,482 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 877 transitions. [2023-12-09 15:40:23,484 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:40:23,484 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 877 transitions. [2023-12-09 15:40:23,486 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 109.625) internal successors, (877), 8 states have internal predecessors, (877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:23,488 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 135.0) internal successors, (1215), 9 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:23,488 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 135.0) internal successors, (1215), 9 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:23,488 INFO L308 CegarLoopForPetriNet]: 120 programPoint places, 107 predicate places. [2023-12-09 15:40:23,489 INFO L500 AbstractCegarLoop]: Abstraction has has 227 places, 522 transitions, 6418 flow [2023-12-09 15:40:23,489 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 110.0) internal successors, (660), 6 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:23,489 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:40:23,489 INFO L233 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:40:23,498 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-09 15:40:23,695 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,SelfDestructingSolverStorable8 [2023-12-09 15:40:23,696 INFO L425 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:40:23,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:40:23,696 INFO L85 PathProgramCache]: Analyzing trace with hash 585403502, now seen corresponding path program 8 times [2023-12-09 15:40:23,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:40:23,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409107719] [2023-12-09 15:40:23,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:40:23,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:40:23,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:40:24,463 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 8 proven. 150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:40:24,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:40:24,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409107719] [2023-12-09 15:40:24,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409107719] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:40:24,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [574583396] [2023-12-09 15:40:24,464 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-09 15:40:24,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:40:24,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:40:24,466 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) [2023-12-09 15:40:24,486 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-09 15:40:24,754 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-09 15:40:24,754 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-09 15:40:24,757 INFO L262 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-09 15:40:24,760 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:40:25,320 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 8 proven. 150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:40:25,320 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:40:25,956 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 0 proven. 158 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:40:25,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [574583396] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 15:40:25,956 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-09 15:40:25,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16, 17] total 43 [2023-12-09 15:40:25,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233706533] [2023-12-09 15:40:25,957 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-09 15:40:25,957 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2023-12-09 15:40:25,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:40:25,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2023-12-09 15:40:25,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=1677, Unknown=0, NotChecked=0, Total=1806 [2023-12-09 15:40:25,962 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 135 [2023-12-09 15:40:25,966 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 522 transitions, 6418 flow. Second operand has 43 states, 43 states have (on average 106.90697674418605) internal successors, (4597), 43 states have internal predecessors, (4597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:25,966 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:40:25,966 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 135 [2023-12-09 15:40:25,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:40:27,325 INFO L124 PetriNetUnfolderBase]: 524/1715 cut-off events. [2023-12-09 15:40:27,325 INFO L125 PetriNetUnfolderBase]: For 9913/10122 co-relation queries the response was YES. [2023-12-09 15:40:27,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8500 conditions, 1715 events. 524/1715 cut-off events. For 9913/10122 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 8292 event pairs, 22 based on Foata normal form. 42/1725 useless extension candidates. Maximal degree in co-relation 7861. Up to 578 conditions per place. [2023-12-09 15:40:27,337 INFO L140 encePairwiseOnDemand]: 126/135 looper letters, 0 selfloop transitions, 0 changer transitions 549/549 dead transitions. [2023-12-09 15:40:27,337 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 549 transitions, 7781 flow [2023-12-09 15:40:27,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-09 15:40:27,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-12-09 15:40:27,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2208 transitions. [2023-12-09 15:40:27,340 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8177777777777778 [2023-12-09 15:40:27,340 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2208 transitions. [2023-12-09 15:40:27,340 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2208 transitions. [2023-12-09 15:40:27,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:40:27,341 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2208 transitions. [2023-12-09 15:40:27,344 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 110.4) internal successors, (2208), 20 states have internal predecessors, (2208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:27,347 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 135.0) internal successors, (2835), 21 states have internal predecessors, (2835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:27,347 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 135.0) internal successors, (2835), 21 states have internal predecessors, (2835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:27,348 INFO L308 CegarLoopForPetriNet]: 120 programPoint places, 124 predicate places. [2023-12-09 15:40:27,348 INFO L500 AbstractCegarLoop]: Abstraction has has 244 places, 549 transitions, 7781 flow [2023-12-09 15:40:27,349 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 106.90697674418605) internal successors, (4597), 43 states have internal predecessors, (4597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:27,356 INFO L161 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/arithmetic_prog_ok.i_BEv2_AllErrorsAtOnce [2023-12-09 15:40:27,405 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-12-09 15:40:27,406 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-12-09 15:40:27,406 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-12-09 15:40:27,412 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-09 15:40:27,611 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,SelfDestructingSolverStorable9 [2023-12-09 15:40:27,612 INFO L457 BasicCegarLoop]: Path program histogram: [8, 1, 1] [2023-12-09 15:40:27,615 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-09 15:40:27,615 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-12-09 15:40:27,624 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 03:40:27 BasicIcfg [2023-12-09 15:40:27,624 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-09 15:40:27,625 INFO L158 Benchmark]: Toolchain (without parser) took 17542.39ms. Allocated memory was 197.1MB in the beginning and 705.7MB in the end (delta: 508.6MB). Free memory was 131.6MB in the beginning and 229.9MB in the end (delta: -98.4MB). Peak memory consumption was 411.7MB. Max. memory is 8.0GB. [2023-12-09 15:40:27,625 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 197.1MB. Free memory is still 146.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-09 15:40:27,625 INFO L158 Benchmark]: CACSL2BoogieTranslator took 482.40ms. Allocated memory was 197.1MB in the beginning and 276.8MB in the end (delta: 79.7MB). Free memory was 131.6MB in the beginning and 236.5MB in the end (delta: -104.9MB). Peak memory consumption was 27.2MB. Max. memory is 8.0GB. [2023-12-09 15:40:27,625 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.39ms. Allocated memory is still 276.8MB. Free memory was 236.5MB in the beginning and 233.9MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-09 15:40:27,626 INFO L158 Benchmark]: Boogie Preprocessor took 34.24ms. Allocated memory is still 276.8MB. Free memory was 233.9MB in the beginning and 232.3MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-09 15:40:27,628 INFO L158 Benchmark]: RCFGBuilder took 447.42ms. Allocated memory is still 276.8MB. Free memory was 232.3MB in the beginning and 212.4MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-12-09 15:40:27,628 INFO L158 Benchmark]: TraceAbstraction took 16532.26ms. Allocated memory was 276.8MB in the beginning and 705.7MB in the end (delta: 428.9MB). Free memory was 211.3MB in the beginning and 229.9MB in the end (delta: -18.6MB). Peak memory consumption was 409.7MB. Max. memory is 8.0GB. [2023-12-09 15:40:27,630 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 197.1MB. Free memory is still 146.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 482.40ms. Allocated memory was 197.1MB in the beginning and 276.8MB in the end (delta: 79.7MB). Free memory was 131.6MB in the beginning and 236.5MB in the end (delta: -104.9MB). Peak memory consumption was 27.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 39.39ms. Allocated memory is still 276.8MB. Free memory was 236.5MB in the beginning and 233.9MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 34.24ms. Allocated memory is still 276.8MB. Free memory was 233.9MB in the beginning and 232.3MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 447.42ms. Allocated memory is still 276.8MB. Free memory was 232.3MB in the beginning and 212.4MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * TraceAbstraction took 16532.26ms. Allocated memory was 276.8MB in the beginning and 705.7MB in the end (delta: 428.9MB). Free memory was 211.3MB in the beginning and 229.9MB in the end (delta: -18.6MB). Peak memory consumption was 409.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 919]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 175 locations, 3 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: 16.4s, OverallIterations: 10, TraceHistogramMax: 4, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.0s, AutomataDifference: 7.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1312 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1312 mSDsluCounter, 306 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 232 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3476 IncrementalHoareTripleChecker+Invalid, 3502 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 74 mSDtfsCounter, 3476 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2255 GetRequests, 2047 SyntacticMatches, 14 SemanticMatches, 194 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3498 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11846occurred in iteration=8, InterpolantAutomatonStates: 153, 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: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 4.8s InterpolantComputationTime, 2624 NumberOfCodeBlocks, 2602 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 3384 ConstructedInterpolants, 0 QuantifiedInterpolants, 8391 SizeOfPredicates, 43 NumberOfNonLiveVariables, 3305 ConjunctsInSsa, 95 ConjunctsInUnsatCore, 24 InterpolantComputations, 5 PerfectInterpolantSequences, 786/1712 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-12-09 15:40:27,650 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...