/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/weaver/popl20-proofs-counter-add-4-semi-Q67.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-a20a710-m [2023-12-09 15:32:09,269 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-09 15:32:09,321 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 15:32:09,340 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-09 15:32:09,341 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-09 15:32:09,341 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-09 15:32:09,341 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-09 15:32:09,342 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-09 15:32:09,342 INFO L153 SettingsManager]: * Use SBE=true [2023-12-09 15:32:09,342 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-09 15:32:09,342 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-09 15:32:09,343 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-09 15:32:09,343 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-09 15:32:09,343 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-09 15:32:09,343 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-09 15:32:09,344 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-09 15:32:09,344 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-09 15:32:09,344 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-09 15:32:09,344 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-09 15:32:09,345 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-09 15:32:09,345 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-09 15:32:09,345 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-09 15:32:09,346 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-09 15:32:09,346 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-09 15:32:09,346 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-09 15:32:09,346 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:32:09,347 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-09 15:32:09,347 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-09 15:32:09,347 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-09 15:32:09,347 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-09 15:32:09,347 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-09 15:32:09,348 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-09 15:32:09,348 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-09 15:32:09,348 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-12-09 15:32:09,529 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-09 15:32:09,547 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-09 15:32:09,550 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-09 15:32:09,551 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-09 15:32:09,551 INFO L274 PluginConnector]: CDTParser initialized [2023-12-09 15:32:09,552 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-proofs-counter-add-4-semi-Q67.wvr.c [2023-12-09 15:32:10,617 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-09 15:32:10,755 INFO L384 CDTParser]: Found 1 translation units. [2023-12-09 15:32:10,755 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-proofs-counter-add-4-semi-Q67.wvr.c [2023-12-09 15:32:10,760 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0af22fce/962879775c3744ac945d5ca8770a54b1/FLAG97337af46 [2023-12-09 15:32:10,771 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0af22fce/962879775c3744ac945d5ca8770a54b1 [2023-12-09 15:32:10,775 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-09 15:32:10,776 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-09 15:32:10,783 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-09 15:32:10,783 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-09 15:32:10,790 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-09 15:32:10,791 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:32:10" (1/1) ... [2023-12-09 15:32:10,792 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@607daac9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:32:10, skipping insertion in model container [2023-12-09 15:32:10,792 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:32:10" (1/1) ... [2023-12-09 15:32:10,822 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-09 15:32:10,918 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-proofs-counter-add-4-semi-Q67.wvr.c[2663,2676] [2023-12-09 15:32:10,921 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:32:10,927 INFO L202 MainTranslator]: Completed pre-run [2023-12-09 15:32:10,941 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-proofs-counter-add-4-semi-Q67.wvr.c[2663,2676] [2023-12-09 15:32:10,941 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:32:10,946 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-12-09 15:32:10,946 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-12-09 15:32:10,950 INFO L206 MainTranslator]: Completed translation [2023-12-09 15:32:10,951 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:32:10 WrapperNode [2023-12-09 15:32:10,951 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-09 15:32:10,952 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-09 15:32:10,952 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-09 15:32:10,952 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-09 15:32:10,956 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:32:10" (1/1) ... [2023-12-09 15:32:10,961 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:32:10" (1/1) ... [2023-12-09 15:32:10,975 INFO L138 Inliner]: procedures = 22, calls = 42, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 138 [2023-12-09 15:32:10,975 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-09 15:32:10,975 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-09 15:32:10,975 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-09 15:32:10,976 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-09 15:32:10,981 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:32:10" (1/1) ... [2023-12-09 15:32:10,981 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:32:10" (1/1) ... [2023-12-09 15:32:10,983 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:32:10" (1/1) ... [2023-12-09 15:32:10,984 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:32:10" (1/1) ... [2023-12-09 15:32:10,988 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:32:10" (1/1) ... [2023-12-09 15:32:10,990 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:32:10" (1/1) ... [2023-12-09 15:32:10,991 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:32:10" (1/1) ... [2023-12-09 15:32:10,992 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:32:10" (1/1) ... [2023-12-09 15:32:10,994 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-09 15:32:10,994 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-09 15:32:10,994 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-09 15:32:10,994 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-09 15:32:10,995 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:32:10" (1/1) ... [2023-12-09 15:32:10,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:32:11,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:32:11,017 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 15:32:11,032 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 15:32:11,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-09 15:32:11,055 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-12-09 15:32:11,055 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-12-09 15:32:11,055 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-12-09 15:32:11,056 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-12-09 15:32:11,056 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-12-09 15:32:11,056 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-12-09 15:32:11,056 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-12-09 15:32:11,056 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-12-09 15:32:11,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-09 15:32:11,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-09 15:32:11,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-09 15:32:11,057 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-12-09 15:32:11,057 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-12-09 15:32:11,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-09 15:32:11,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-09 15:32:11,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-09 15:32:11,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-09 15:32:11,059 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 15:32:11,134 INFO L241 CfgBuilder]: Building ICFG [2023-12-09 15:32:11,136 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-09 15:32:11,313 INFO L282 CfgBuilder]: Performing block encoding [2023-12-09 15:32:11,376 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-09 15:32:11,376 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-12-09 15:32:11,377 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:32:11 BoogieIcfgContainer [2023-12-09 15:32:11,377 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-09 15:32:11,379 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-09 15:32:11,379 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-09 15:32:11,384 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-09 15:32:11,384 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:32:10" (1/3) ... [2023-12-09 15:32:11,385 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b903a62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:32:11, skipping insertion in model container [2023-12-09 15:32:11,385 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:32:10" (2/3) ... [2023-12-09 15:32:11,385 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b903a62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:32:11, skipping insertion in model container [2023-12-09 15:32:11,385 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:32:11" (3/3) ... [2023-12-09 15:32:11,386 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-proofs-counter-add-4-semi-Q67.wvr.c [2023-12-09 15:32:11,400 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-09 15:32:11,400 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-09 15:32:11,401 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-09 15:32:11,496 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-12-09 15:32:11,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 138 places, 135 transitions, 298 flow [2023-12-09 15:32:11,609 INFO L124 PetriNetUnfolderBase]: 10/131 cut-off events. [2023-12-09 15:32:11,609 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-12-09 15:32:11,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 131 events. 10/131 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 55 event pairs, 0 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place. [2023-12-09 15:32:11,614 INFO L82 GeneralOperation]: Start removeDead. Operand has 138 places, 135 transitions, 298 flow [2023-12-09 15:32:11,617 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 121 places, 118 transitions, 260 flow [2023-12-09 15:32:11,622 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 15:32:11,629 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;@55d3bd30, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 15:32:11,629 INFO L363 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-12-09 15:32:11,678 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 15:32:11,678 INFO L124 PetriNetUnfolderBase]: 10/117 cut-off events. [2023-12-09 15:32:11,678 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-12-09 15:32:11,678 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:32:11,679 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] [2023-12-09 15:32:11,679 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-12-09 15:32:11,683 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:32:11,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1112397229, now seen corresponding path program 1 times [2023-12-09 15:32:11,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:32:11,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644405377] [2023-12-09 15:32:11,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:32:11,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:32:11,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:32:12,176 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 15:32:12,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:32:12,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644405377] [2023-12-09 15:32:12,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644405377] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:32:12,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:32:12,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-09 15:32:12,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446053678] [2023-12-09 15:32:12,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:32:12,185 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-09 15:32:12,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:32:12,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-09 15:32:12,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-09 15:32:12,207 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 135 [2023-12-09 15:32:12,210 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 118 transitions, 260 flow. Second operand has 5 states, 5 states have (on average 105.2) internal successors, (526), 5 states have internal predecessors, (526), 0 states have call successors, (0), 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 15:32:12,210 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:32:12,210 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 135 [2023-12-09 15:32:12,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:32:12,387 INFO L124 PetriNetUnfolderBase]: 104/381 cut-off events. [2023-12-09 15:32:12,387 INFO L125 PetriNetUnfolderBase]: For 97/97 co-relation queries the response was YES. [2023-12-09 15:32:12,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 606 conditions, 381 events. 104/381 cut-off events. For 97/97 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1254 event pairs, 17 based on Foata normal form. 124/467 useless extension candidates. Maximal degree in co-relation 424. Up to 145 conditions per place. [2023-12-09 15:32:12,394 INFO L140 encePairwiseOnDemand]: 119/135 looper letters, 29 selfloop transitions, 3 changer transitions 8/125 dead transitions. [2023-12-09 15:32:12,395 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 125 transitions, 375 flow [2023-12-09 15:32:12,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-09 15:32:12,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-12-09 15:32:12,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 761 transitions. [2023-12-09 15:32:12,410 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8052910052910053 [2023-12-09 15:32:12,411 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 761 transitions. [2023-12-09 15:32:12,411 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 761 transitions. [2023-12-09 15:32:12,420 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:32:12,422 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 761 transitions. [2023-12-09 15:32:12,425 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 108.71428571428571) internal successors, (761), 7 states have internal predecessors, (761), 0 states have call successors, (0), 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 15:32:12,433 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 15:32:12,433 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 15:32:12,437 INFO L308 CegarLoopForPetriNet]: 121 programPoint places, 6 predicate places. [2023-12-09 15:32:12,437 INFO L500 AbstractCegarLoop]: Abstraction has has 127 places, 125 transitions, 375 flow [2023-12-09 15:32:12,438 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 105.2) internal successors, (526), 5 states have internal predecessors, (526), 0 states have call successors, (0), 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 15:32:12,438 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:32:12,438 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] [2023-12-09 15:32:12,439 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-09 15:32:12,439 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-12-09 15:32:12,440 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:32:12,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1448387436, now seen corresponding path program 1 times [2023-12-09 15:32:12,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:32:12,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781635631] [2023-12-09 15:32:12,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:32:12,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:32:12,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:32:12,929 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 15:32:12,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:32:12,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781635631] [2023-12-09 15:32:12,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781635631] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:32:12,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1253689687] [2023-12-09 15:32:12,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:32:12,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:32:12,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:32:12,949 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 15:32:12,955 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 15:32:13,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:32:13,061 INFO L262 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-09 15:32:13,068 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:32:13,410 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:32:13,411 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-09 15:32:13,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1253689687] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:32:13,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-09 15:32:13,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2023-12-09 15:32:13,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822302012] [2023-12-09 15:32:13,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:32:13,412 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-09 15:32:13,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:32:13,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-09 15:32:13,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2023-12-09 15:32:13,414 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 135 [2023-12-09 15:32:13,415 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 125 transitions, 375 flow. Second operand has 8 states, 8 states have (on average 95.75) internal successors, (766), 8 states have internal predecessors, (766), 0 states have call successors, (0), 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 15:32:13,415 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:32:13,415 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 135 [2023-12-09 15:32:13,416 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:32:13,766 INFO L124 PetriNetUnfolderBase]: 577/1452 cut-off events. [2023-12-09 15:32:13,767 INFO L125 PetriNetUnfolderBase]: For 775/979 co-relation queries the response was YES. [2023-12-09 15:32:13,771 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3147 conditions, 1452 events. 577/1452 cut-off events. For 775/979 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 8821 event pairs, 134 based on Foata normal form. 2/1176 useless extension candidates. Maximal degree in co-relation 2269. Up to 564 conditions per place. [2023-12-09 15:32:13,780 INFO L140 encePairwiseOnDemand]: 121/135 looper letters, 64 selfloop transitions, 18 changer transitions 10/168 dead transitions. [2023-12-09 15:32:13,780 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 168 transitions, 759 flow [2023-12-09 15:32:13,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-09 15:32:13,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-12-09 15:32:13,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1182 transitions. [2023-12-09 15:32:13,783 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7296296296296296 [2023-12-09 15:32:13,783 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1182 transitions. [2023-12-09 15:32:13,783 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1182 transitions. [2023-12-09 15:32:13,784 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:32:13,784 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1182 transitions. [2023-12-09 15:32:13,787 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 98.5) internal successors, (1182), 12 states have internal predecessors, (1182), 0 states have call successors, (0), 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 15:32:13,789 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 15:32:13,789 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 15:32:13,790 INFO L308 CegarLoopForPetriNet]: 121 programPoint places, 17 predicate places. [2023-12-09 15:32:13,790 INFO L500 AbstractCegarLoop]: Abstraction has has 138 places, 168 transitions, 759 flow [2023-12-09 15:32:13,791 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 95.75) internal successors, (766), 8 states have internal predecessors, (766), 0 states have call successors, (0), 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 15:32:13,791 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:32:13,791 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] [2023-12-09 15:32:13,810 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-09 15:32:13,996 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 15:32:13,999 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-12-09 15:32:13,999 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:32:14,000 INFO L85 PathProgramCache]: Analyzing trace with hash 229441436, now seen corresponding path program 2 times [2023-12-09 15:32:14,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:32:14,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602190741] [2023-12-09 15:32:14,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:32:14,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:32:14,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:32:14,267 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 15:32:14,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:32:14,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602190741] [2023-12-09 15:32:14,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602190741] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:32:14,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [142241412] [2023-12-09 15:32:14,269 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-09 15:32:14,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:32:14,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:32:14,270 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 15:32:14,272 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 15:32:14,390 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-09 15:32:14,390 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-09 15:32:14,391 INFO L262 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-09 15:32:14,395 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:32:14,609 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:32:14,609 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-09 15:32:14,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [142241412] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:32:14,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-09 15:32:14,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2023-12-09 15:32:14,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753068842] [2023-12-09 15:32:14,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:32:14,611 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-09 15:32:14,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:32:14,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-09 15:32:14,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2023-12-09 15:32:14,616 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 135 [2023-12-09 15:32:14,617 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 168 transitions, 759 flow. Second operand has 8 states, 8 states have (on average 95.75) internal successors, (766), 8 states have internal predecessors, (766), 0 states have call successors, (0), 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 15:32:14,617 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:32:14,617 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 135 [2023-12-09 15:32:14,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:32:14,905 INFO L124 PetriNetUnfolderBase]: 483/1266 cut-off events. [2023-12-09 15:32:14,905 INFO L125 PetriNetUnfolderBase]: For 1139/2121 co-relation queries the response was YES. [2023-12-09 15:32:14,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3345 conditions, 1266 events. 483/1266 cut-off events. For 1139/2121 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 7392 event pairs, 105 based on Foata normal form. 9/1056 useless extension candidates. Maximal degree in co-relation 2471. Up to 446 conditions per place. [2023-12-09 15:32:14,917 INFO L140 encePairwiseOnDemand]: 119/135 looper letters, 66 selfloop transitions, 16 changer transitions 9/167 dead transitions. [2023-12-09 15:32:14,917 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 167 transitions, 939 flow [2023-12-09 15:32:14,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-09 15:32:14,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-12-09 15:32:14,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1260 transitions. [2023-12-09 15:32:14,920 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.717948717948718 [2023-12-09 15:32:14,920 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1260 transitions. [2023-12-09 15:32:14,920 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1260 transitions. [2023-12-09 15:32:14,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:32:14,921 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1260 transitions. [2023-12-09 15:32:14,923 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 96.92307692307692) internal successors, (1260), 13 states have internal predecessors, (1260), 0 states have call successors, (0), 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 15:32:14,925 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 135.0) internal successors, (1890), 14 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:32:14,926 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 135.0) internal successors, (1890), 14 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:32:14,927 INFO L308 CegarLoopForPetriNet]: 121 programPoint places, 27 predicate places. [2023-12-09 15:32:14,927 INFO L500 AbstractCegarLoop]: Abstraction has has 148 places, 167 transitions, 939 flow [2023-12-09 15:32:14,928 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 95.75) internal successors, (766), 8 states have internal predecessors, (766), 0 states have call successors, (0), 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 15:32:14,929 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:32:14,929 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] [2023-12-09 15:32:14,949 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-09 15:32:15,133 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 15:32:15,134 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-12-09 15:32:15,134 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:32:15,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1059353768, now seen corresponding path program 1 times [2023-12-09 15:32:15,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:32:15,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730873568] [2023-12-09 15:32:15,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:32:15,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:32:15,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:32:15,436 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:32:15,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:32:15,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730873568] [2023-12-09 15:32:15,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730873568] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:32:15,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:32:15,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-09 15:32:15,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59670999] [2023-12-09 15:32:15,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:32:15,438 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-09 15:32:15,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:32:15,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-09 15:32:15,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-12-09 15:32:15,440 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 135 [2023-12-09 15:32:15,441 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 167 transitions, 939 flow. Second operand has 9 states, 9 states have (on average 88.0) internal successors, (792), 9 states have internal predecessors, (792), 0 states have call successors, (0), 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 15:32:15,441 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:32:15,441 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 135 [2023-12-09 15:32:15,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:32:16,057 INFO L124 PetriNetUnfolderBase]: 2941/4959 cut-off events. [2023-12-09 15:32:16,057 INFO L125 PetriNetUnfolderBase]: For 7559/15794 co-relation queries the response was YES. [2023-12-09 15:32:16,065 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16148 conditions, 4959 events. 2941/4959 cut-off events. For 7559/15794 co-relation queries the response was YES. Maximal size of possible extension queue 322. Compared 31739 event pairs, 707 based on Foata normal form. 41/3706 useless extension candidates. Maximal degree in co-relation 14858. Up to 1884 conditions per place. [2023-12-09 15:32:16,094 INFO L140 encePairwiseOnDemand]: 122/135 looper letters, 149 selfloop transitions, 19 changer transitions 17/253 dead transitions. [2023-12-09 15:32:16,094 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 253 transitions, 1930 flow [2023-12-09 15:32:16,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-09 15:32:16,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-12-09 15:32:16,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 963 transitions. [2023-12-09 15:32:16,097 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7133333333333334 [2023-12-09 15:32:16,097 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 963 transitions. [2023-12-09 15:32:16,097 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 963 transitions. [2023-12-09 15:32:16,097 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:32:16,097 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 963 transitions. [2023-12-09 15:32:16,099 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 96.3) internal successors, (963), 10 states have internal predecessors, (963), 0 states have call successors, (0), 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 15:32:16,101 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 135.0) internal successors, (1485), 11 states have internal predecessors, (1485), 0 states have call successors, (0), 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 15:32:16,101 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 135.0) internal successors, (1485), 11 states have internal predecessors, (1485), 0 states have call successors, (0), 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 15:32:16,103 INFO L308 CegarLoopForPetriNet]: 121 programPoint places, 36 predicate places. [2023-12-09 15:32:16,103 INFO L500 AbstractCegarLoop]: Abstraction has has 157 places, 253 transitions, 1930 flow [2023-12-09 15:32:16,104 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 88.0) internal successors, (792), 9 states have internal predecessors, (792), 0 states have call successors, (0), 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 15:32:16,104 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:32:16,104 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] [2023-12-09 15:32:16,104 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-09 15:32:16,104 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-12-09 15:32:16,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:32:16,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1197192668, now seen corresponding path program 2 times [2023-12-09 15:32:16,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:32:16,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132518875] [2023-12-09 15:32:16,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:32:16,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:32:16,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:32:16,325 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:32:16,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:32:16,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132518875] [2023-12-09 15:32:16,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132518875] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:32:16,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:32:16,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-09 15:32:16,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239706632] [2023-12-09 15:32:16,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:32:16,326 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-09 15:32:16,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:32:16,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-09 15:32:16,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-09 15:32:16,327 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 135 [2023-12-09 15:32:16,328 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 253 transitions, 1930 flow. Second operand has 8 states, 8 states have (on average 88.5) internal successors, (708), 8 states have internal predecessors, (708), 0 states have call successors, (0), 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 15:32:16,328 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:32:16,328 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 135 [2023-12-09 15:32:16,330 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:32:17,265 INFO L124 PetriNetUnfolderBase]: 3755/6644 cut-off events. [2023-12-09 15:32:17,265 INFO L125 PetriNetUnfolderBase]: For 14240/23042 co-relation queries the response was YES. [2023-12-09 15:32:17,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27061 conditions, 6644 events. 3755/6644 cut-off events. For 14240/23042 co-relation queries the response was YES. Maximal size of possible extension queue 450. Compared 47195 event pairs, 584 based on Foata normal form. 39/5101 useless extension candidates. Maximal degree in co-relation 19434. Up to 3018 conditions per place. [2023-12-09 15:32:17,318 INFO L140 encePairwiseOnDemand]: 122/135 looper letters, 281 selfloop transitions, 36 changer transitions 23/408 dead transitions. [2023-12-09 15:32:17,318 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 408 transitions, 4050 flow [2023-12-09 15:32:17,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-09 15:32:17,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-12-09 15:32:17,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 957 transitions. [2023-12-09 15:32:17,320 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7088888888888889 [2023-12-09 15:32:17,321 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 957 transitions. [2023-12-09 15:32:17,321 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 957 transitions. [2023-12-09 15:32:17,321 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:32:17,321 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 957 transitions. [2023-12-09 15:32:17,323 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 95.7) internal successors, (957), 10 states have internal predecessors, (957), 0 states have call successors, (0), 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 15:32:17,324 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 135.0) internal successors, (1485), 11 states have internal predecessors, (1485), 0 states have call successors, (0), 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 15:32:17,324 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 135.0) internal successors, (1485), 11 states have internal predecessors, (1485), 0 states have call successors, (0), 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 15:32:17,325 INFO L308 CegarLoopForPetriNet]: 121 programPoint places, 45 predicate places. [2023-12-09 15:32:17,325 INFO L500 AbstractCegarLoop]: Abstraction has has 166 places, 408 transitions, 4050 flow [2023-12-09 15:32:17,325 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 88.5) internal successors, (708), 8 states have internal predecessors, (708), 0 states have call successors, (0), 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 15:32:17,325 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:32:17,326 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] [2023-12-09 15:32:17,326 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-09 15:32:17,326 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-12-09 15:32:17,326 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:32:17,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1975192980, now seen corresponding path program 3 times [2023-12-09 15:32:17,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:32:17,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114521913] [2023-12-09 15:32:17,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:32:17,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:32:17,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:32:17,509 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:32:17,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:32:17,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114521913] [2023-12-09 15:32:17,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114521913] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:32:17,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:32:17,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-09 15:32:17,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729287034] [2023-12-09 15:32:17,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:32:17,510 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-09 15:32:17,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:32:17,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-09 15:32:17,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-12-09 15:32:17,512 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 135 [2023-12-09 15:32:17,512 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 408 transitions, 4050 flow. Second operand has 8 states, 8 states have (on average 95.75) internal successors, (766), 8 states have internal predecessors, (766), 0 states have call successors, (0), 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 15:32:17,512 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:32:17,512 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 135 [2023-12-09 15:32:17,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:32:18,375 INFO L124 PetriNetUnfolderBase]: 3696/6663 cut-off events. [2023-12-09 15:32:18,471 INFO L125 PetriNetUnfolderBase]: For 20683/31605 co-relation queries the response was YES. [2023-12-09 15:32:18,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30184 conditions, 6663 events. 3696/6663 cut-off events. For 20683/31605 co-relation queries the response was YES. Maximal size of possible extension queue 438. Compared 47441 event pairs, 703 based on Foata normal form. 53/5085 useless extension candidates. Maximal degree in co-relation 21807. Up to 2968 conditions per place. [2023-12-09 15:32:18,522 INFO L140 encePairwiseOnDemand]: 125/135 looper letters, 224 selfloop transitions, 19 changer transitions 43/411 dead transitions. [2023-12-09 15:32:18,522 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 411 transitions, 4630 flow [2023-12-09 15:32:18,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-09 15:32:18,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-12-09 15:32:18,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 816 transitions. [2023-12-09 15:32:18,524 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7555555555555555 [2023-12-09 15:32:18,524 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 816 transitions. [2023-12-09 15:32:18,524 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 816 transitions. [2023-12-09 15:32:18,525 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:32:18,525 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 816 transitions. [2023-12-09 15:32:18,526 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 102.0) internal successors, (816), 8 states have internal predecessors, (816), 0 states have call successors, (0), 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 15:32:18,528 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 15:32:18,528 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 15:32:18,530 INFO L308 CegarLoopForPetriNet]: 121 programPoint places, 52 predicate places. [2023-12-09 15:32:18,530 INFO L500 AbstractCegarLoop]: Abstraction has has 173 places, 411 transitions, 4630 flow [2023-12-09 15:32:18,530 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 95.75) internal successors, (766), 8 states have internal predecessors, (766), 0 states have call successors, (0), 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 15:32:18,530 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:32:18,530 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] [2023-12-09 15:32:18,530 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-09 15:32:18,530 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-12-09 15:32:18,531 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:32:18,531 INFO L85 PathProgramCache]: Analyzing trace with hash 2062874018, now seen corresponding path program 4 times [2023-12-09 15:32:18,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:32:18,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157092443] [2023-12-09 15:32:18,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:32:18,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:32:18,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:32:18,729 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:32:18,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:32:18,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157092443] [2023-12-09 15:32:18,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157092443] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:32:18,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:32:18,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-09 15:32:18,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772598544] [2023-12-09 15:32:18,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:32:18,730 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-09 15:32:18,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:32:18,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-09 15:32:18,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-12-09 15:32:18,731 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 135 [2023-12-09 15:32:18,732 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 411 transitions, 4630 flow. Second operand has 8 states, 8 states have (on average 88.5) internal successors, (708), 8 states have internal predecessors, (708), 0 states have call successors, (0), 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 15:32:18,732 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:32:18,732 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 135 [2023-12-09 15:32:18,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:32:19,707 INFO L124 PetriNetUnfolderBase]: 3734/6632 cut-off events. [2023-12-09 15:32:19,707 INFO L125 PetriNetUnfolderBase]: For 23820/41430 co-relation queries the response was YES. [2023-12-09 15:32:19,716 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35489 conditions, 6632 events. 3734/6632 cut-off events. For 23820/41430 co-relation queries the response was YES. Maximal size of possible extension queue 457. Compared 46950 event pairs, 430 based on Foata normal form. 67/5120 useless extension candidates. Maximal degree in co-relation 25745. Up to 3038 conditions per place. [2023-12-09 15:32:19,780 INFO L140 encePairwiseOnDemand]: 125/135 looper letters, 362 selfloop transitions, 38 changer transitions 58/526 dead transitions. [2023-12-09 15:32:19,781 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 526 transitions, 6750 flow [2023-12-09 15:32:19,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-09 15:32:19,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-12-09 15:32:19,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 775 transitions. [2023-12-09 15:32:19,784 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7175925925925926 [2023-12-09 15:32:19,784 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 775 transitions. [2023-12-09 15:32:19,784 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 775 transitions. [2023-12-09 15:32:19,785 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:32:19,785 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 775 transitions. [2023-12-09 15:32:19,786 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 96.875) internal successors, (775), 8 states have internal predecessors, (775), 0 states have call successors, (0), 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 15:32:19,788 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 15:32:19,789 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 15:32:19,790 INFO L308 CegarLoopForPetriNet]: 121 programPoint places, 59 predicate places. [2023-12-09 15:32:19,790 INFO L500 AbstractCegarLoop]: Abstraction has has 180 places, 526 transitions, 6750 flow [2023-12-09 15:32:19,790 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 88.5) internal successors, (708), 8 states have internal predecessors, (708), 0 states have call successors, (0), 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 15:32:19,790 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:32:19,791 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] [2023-12-09 15:32:19,791 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-09 15:32:19,791 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-12-09 15:32:19,791 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:32:19,792 INFO L85 PathProgramCache]: Analyzing trace with hash -539024542, now seen corresponding path program 5 times [2023-12-09 15:32:19,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:32:19,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706419072] [2023-12-09 15:32:19,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:32:19,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:32:19,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:32:20,138 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 15:32:20,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:32:20,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706419072] [2023-12-09 15:32:20,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706419072] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:32:20,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [366122887] [2023-12-09 15:32:20,139 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-12-09 15:32:20,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:32:20,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:32:20,149 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 15:32:20,150 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 15:32:20,255 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-09 15:32:20,255 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-09 15:32:20,257 INFO L262 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-09 15:32:20,260 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:32:20,645 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:32:20,645 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-09 15:32:20,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [366122887] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:32:20,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-09 15:32:20,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2023-12-09 15:32:20,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056339776] [2023-12-09 15:32:20,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:32:20,647 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-09 15:32:20,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:32:20,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-09 15:32:20,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2023-12-09 15:32:20,648 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 135 [2023-12-09 15:32:20,649 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 526 transitions, 6750 flow. Second operand has 8 states, 8 states have (on average 95.75) internal successors, (766), 8 states have internal predecessors, (766), 0 states have call successors, (0), 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 15:32:20,649 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:32:20,649 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 135 [2023-12-09 15:32:20,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:32:21,488 INFO L124 PetriNetUnfolderBase]: 4004/7032 cut-off events. [2023-12-09 15:32:21,488 INFO L125 PetriNetUnfolderBase]: For 33196/55512 co-relation queries the response was YES. [2023-12-09 15:32:21,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42735 conditions, 7032 events. 4004/7032 cut-off events. For 33196/55512 co-relation queries the response was YES. Maximal size of possible extension queue 446. Compared 49477 event pairs, 358 based on Foata normal form. 71/5541 useless extension candidates. Maximal degree in co-relation 30776. Up to 3328 conditions per place. [2023-12-09 15:32:21,561 INFO L140 encePairwiseOnDemand]: 121/135 looper letters, 322 selfloop transitions, 39 changer transitions 58/577 dead transitions. [2023-12-09 15:32:21,561 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 577 transitions, 8337 flow [2023-12-09 15:32:21,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-09 15:32:21,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-12-09 15:32:21,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 986 transitions. [2023-12-09 15:32:21,564 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7303703703703703 [2023-12-09 15:32:21,564 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 986 transitions. [2023-12-09 15:32:21,564 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 986 transitions. [2023-12-09 15:32:21,565 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:32:21,565 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 986 transitions. [2023-12-09 15:32:21,567 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 98.6) internal successors, (986), 10 states have internal predecessors, (986), 0 states have call successors, (0), 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 15:32:21,570 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 135.0) internal successors, (1485), 11 states have internal predecessors, (1485), 0 states have call successors, (0), 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 15:32:21,571 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 135.0) internal successors, (1485), 11 states have internal predecessors, (1485), 0 states have call successors, (0), 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 15:32:21,574 INFO L308 CegarLoopForPetriNet]: 121 programPoint places, 68 predicate places. [2023-12-09 15:32:21,574 INFO L500 AbstractCegarLoop]: Abstraction has has 189 places, 577 transitions, 8337 flow [2023-12-09 15:32:21,574 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 95.75) internal successors, (766), 8 states have internal predecessors, (766), 0 states have call successors, (0), 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 15:32:21,574 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:32:21,574 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] [2023-12-09 15:32:21,583 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 15:32:21,779 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:32:21,780 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-12-09 15:32:21,780 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:32:21,780 INFO L85 PathProgramCache]: Analyzing trace with hash -446392313, now seen corresponding path program 1 times [2023-12-09 15:32:21,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:32:21,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744785032] [2023-12-09 15:32:21,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:32:21,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:32:21,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:32:22,112 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 15:32:22,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:32:22,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744785032] [2023-12-09 15:32:22,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744785032] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:32:22,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1112783557] [2023-12-09 15:32:22,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:32:22,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:32:22,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:32:22,116 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 15:32:22,119 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 15:32:22,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:32:22,202 INFO L262 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-09 15:32:22,204 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:32:22,327 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:32:22,327 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:32:22,424 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:32:22,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1112783557] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 15:32:22,424 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-09 15:32:22,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6, 6] total 15 [2023-12-09 15:32:22,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817624927] [2023-12-09 15:32:22,424 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-09 15:32:22,425 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-09 15:32:22,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:32:22,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-09 15:32:22,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2023-12-09 15:32:22,426 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 135 [2023-12-09 15:32:22,427 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 577 transitions, 8337 flow. Second operand has 15 states, 15 states have (on average 88.06666666666666) internal successors, (1321), 15 states have internal predecessors, (1321), 0 states have call successors, (0), 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 15:32:22,427 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:32:22,427 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 135 [2023-12-09 15:32:22,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:32:24,807 INFO L124 PetriNetUnfolderBase]: 8059/13592 cut-off events. [2023-12-09 15:32:24,807 INFO L125 PetriNetUnfolderBase]: For 51473/67414 co-relation queries the response was YES. [2023-12-09 15:32:24,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95734 conditions, 13592 events. 8059/13592 cut-off events. For 51473/67414 co-relation queries the response was YES. Maximal size of possible extension queue 847. Compared 104780 event pairs, 412 based on Foata normal form. 891/11658 useless extension candidates. Maximal degree in co-relation 91487. Up to 8420 conditions per place. [2023-12-09 15:32:24,939 INFO L140 encePairwiseOnDemand]: 117/135 looper letters, 484 selfloop transitions, 110 changer transitions 144/805 dead transitions. [2023-12-09 15:32:24,940 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 805 transitions, 13505 flow [2023-12-09 15:32:24,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-09 15:32:24,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2023-12-09 15:32:24,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 2397 transitions. [2023-12-09 15:32:24,944 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6829059829059829 [2023-12-09 15:32:24,944 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 2397 transitions. [2023-12-09 15:32:24,944 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 2397 transitions. [2023-12-09 15:32:24,945 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:32:24,945 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 2397 transitions. [2023-12-09 15:32:24,949 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 92.1923076923077) internal successors, (2397), 26 states have internal predecessors, (2397), 0 states have call successors, (0), 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 15:32:24,953 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 135.0) internal successors, (3645), 27 states have internal predecessors, (3645), 0 states have call successors, (0), 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 15:32:24,954 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 135.0) internal successors, (3645), 27 states have internal predecessors, (3645), 0 states have call successors, (0), 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 15:32:24,954 INFO L308 CegarLoopForPetriNet]: 121 programPoint places, 91 predicate places. [2023-12-09 15:32:24,954 INFO L500 AbstractCegarLoop]: Abstraction has has 212 places, 805 transitions, 13505 flow [2023-12-09 15:32:24,955 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 88.06666666666666) internal successors, (1321), 15 states have internal predecessors, (1321), 0 states have call successors, (0), 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 15:32:24,955 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:32:24,955 INFO L233 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:32:24,983 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-09 15:32:25,160 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:32:25,162 INFO L425 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-12-09 15:32:25,162 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:32:25,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1861456516, now seen corresponding path program 1 times [2023-12-09 15:32:25,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:32:25,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726274902] [2023-12-09 15:32:25,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:32:25,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:32:25,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:32:25,447 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:32:25,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:32:25,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726274902] [2023-12-09 15:32:25,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726274902] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:32:25,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1422939294] [2023-12-09 15:32:25,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:32:25,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:32:25,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:32:25,449 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 15:32:25,461 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 15:32:25,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:32:25,539 INFO L262 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-09 15:32:25,544 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:32:25,796 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:32:25,797 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-09 15:32:25,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1422939294] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:32:25,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-09 15:32:25,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 17 [2023-12-09 15:32:25,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628540602] [2023-12-09 15:32:25,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:32:25,798 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-09 15:32:25,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:32:25,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-09 15:32:25,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2023-12-09 15:32:25,799 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 135 [2023-12-09 15:32:25,800 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 805 transitions, 13505 flow. Second operand has 9 states, 9 states have (on average 95.66666666666667) internal successors, (861), 9 states have internal predecessors, (861), 0 states have call successors, (0), 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 15:32:25,800 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:32:25,800 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 135 [2023-12-09 15:32:25,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:32:28,102 INFO L124 PetriNetUnfolderBase]: 8114/14203 cut-off events. [2023-12-09 15:32:28,103 INFO L125 PetriNetUnfolderBase]: For 75353/103932 co-relation queries the response was YES. [2023-12-09 15:32:28,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105919 conditions, 14203 events. 8114/14203 cut-off events. For 75353/103932 co-relation queries the response was YES. Maximal size of possible extension queue 883. Compared 113134 event pairs, 549 based on Foata normal form. 129/11366 useless extension candidates. Maximal degree in co-relation 75270. Up to 8601 conditions per place. [2023-12-09 15:32:28,297 INFO L140 encePairwiseOnDemand]: 118/135 looper letters, 436 selfloop transitions, 50 changer transitions 165/853 dead transitions. [2023-12-09 15:32:28,298 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 853 transitions, 15646 flow [2023-12-09 15:32:28,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-09 15:32:28,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-12-09 15:32:28,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1551 transitions. [2023-12-09 15:32:28,306 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7180555555555556 [2023-12-09 15:32:28,306 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1551 transitions. [2023-12-09 15:32:28,306 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1551 transitions. [2023-12-09 15:32:28,306 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:32:28,306 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1551 transitions. [2023-12-09 15:32:28,309 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 96.9375) internal successors, (1551), 16 states have internal predecessors, (1551), 0 states have call successors, (0), 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 15:32:28,312 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 135.0) internal successors, (2295), 17 states have internal predecessors, (2295), 0 states have call successors, (0), 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 15:32:28,313 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 135.0) internal successors, (2295), 17 states have internal predecessors, (2295), 0 states have call successors, (0), 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 15:32:28,314 INFO L308 CegarLoopForPetriNet]: 121 programPoint places, 106 predicate places. [2023-12-09 15:32:28,314 INFO L500 AbstractCegarLoop]: Abstraction has has 227 places, 853 transitions, 15646 flow [2023-12-09 15:32:28,314 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 95.66666666666667) internal successors, (861), 9 states have internal predecessors, (861), 0 states have call successors, (0), 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 15:32:28,314 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:32:28,314 INFO L233 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:32:28,320 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-09 15:32:28,519 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-09 15:32:28,520 INFO L425 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-12-09 15:32:28,521 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:32:28,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1938632256, now seen corresponding path program 2 times [2023-12-09 15:32:28,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:32:28,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270544805] [2023-12-09 15:32:28,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:32:28,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:32:28,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:32:28,886 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-09 15:32:28,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:32:28,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270544805] [2023-12-09 15:32:28,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270544805] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:32:28,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:32:28,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-09 15:32:28,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87502590] [2023-12-09 15:32:28,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:32:28,889 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-09 15:32:28,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:32:28,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-09 15:32:28,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-12-09 15:32:28,891 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 135 [2023-12-09 15:32:28,891 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 853 transitions, 15646 flow. Second operand has 9 states, 9 states have (on average 88.44444444444444) internal successors, (796), 9 states have internal predecessors, (796), 0 states have call successors, (0), 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 15:32:28,891 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:32:28,892 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 135 [2023-12-09 15:32:28,892 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:32:31,332 INFO L124 PetriNetUnfolderBase]: 8059/13674 cut-off events. [2023-12-09 15:32:31,332 INFO L125 PetriNetUnfolderBase]: For 63564/79767 co-relation queries the response was YES. [2023-12-09 15:32:31,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116333 conditions, 13674 events. 8059/13674 cut-off events. For 63564/79767 co-relation queries the response was YES. Maximal size of possible extension queue 869. Compared 105932 event pairs, 161 based on Foata normal form. 119/11068 useless extension candidates. Maximal degree in co-relation 110823. Up to 8554 conditions per place. [2023-12-09 15:32:31,485 INFO L140 encePairwiseOnDemand]: 124/135 looper letters, 672 selfloop transitions, 44 changer transitions 187/971 dead transitions. [2023-12-09 15:32:31,485 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 971 transitions, 19684 flow [2023-12-09 15:32:31,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-09 15:32:31,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-12-09 15:32:31,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 778 transitions. [2023-12-09 15:32:31,487 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7203703703703703 [2023-12-09 15:32:31,487 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 778 transitions. [2023-12-09 15:32:31,487 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 778 transitions. [2023-12-09 15:32:31,487 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:32:31,487 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 778 transitions. [2023-12-09 15:32:31,488 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 97.25) internal successors, (778), 8 states have internal predecessors, (778), 0 states have call successors, (0), 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 15:32:31,489 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 15:32:31,490 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 15:32:31,490 INFO L308 CegarLoopForPetriNet]: 121 programPoint places, 113 predicate places. [2023-12-09 15:32:31,490 INFO L500 AbstractCegarLoop]: Abstraction has has 234 places, 971 transitions, 19684 flow [2023-12-09 15:32:31,490 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 88.44444444444444) internal successors, (796), 9 states have internal predecessors, (796), 0 states have call successors, (0), 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 15:32:31,490 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:32:31,491 INFO L233 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:32:31,491 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-09 15:32:31,491 INFO L425 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-12-09 15:32:31,491 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:32:31,491 INFO L85 PathProgramCache]: Analyzing trace with hash -137129398, now seen corresponding path program 3 times [2023-12-09 15:32:31,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:32:31,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255394869] [2023-12-09 15:32:31,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:32:31,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:32:31,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:32:31,795 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-09 15:32:31,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:32:31,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255394869] [2023-12-09 15:32:31,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255394869] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:32:31,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [373491393] [2023-12-09 15:32:31,795 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-09 15:32:31,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:32:31,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:32:31,798 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 15:32:31,822 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 15:32:31,903 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-12-09 15:32:31,903 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-09 15:32:31,905 INFO L262 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-09 15:32:31,907 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:32:32,162 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-09 15:32:32,162 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:32:32,395 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-09 15:32:32,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [373491393] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-09 15:32:32,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-09 15:32:32,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9, 9] total 23 [2023-12-09 15:32:32,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628571369] [2023-12-09 15:32:32,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:32:32,396 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-09 15:32:32,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:32:32,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-09 15:32:32,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=403, Unknown=0, NotChecked=0, Total=506 [2023-12-09 15:32:32,398 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 135 [2023-12-09 15:32:32,399 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 971 transitions, 19684 flow. Second operand has 9 states, 9 states have (on average 95.66666666666667) internal successors, (861), 9 states have internal predecessors, (861), 0 states have call successors, (0), 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 15:32:32,399 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:32:32,399 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 135 [2023-12-09 15:32:32,399 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:32:34,740 INFO L124 PetriNetUnfolderBase]: 7889/13668 cut-off events. [2023-12-09 15:32:34,740 INFO L125 PetriNetUnfolderBase]: For 90576/124354 co-relation queries the response was YES. [2023-12-09 15:32:34,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122626 conditions, 13668 events. 7889/13668 cut-off events. For 90576/124354 co-relation queries the response was YES. Maximal size of possible extension queue 872. Compared 108455 event pairs, 146 based on Foata normal form. 248/11352 useless extension candidates. Maximal degree in co-relation 117699. Up to 8384 conditions per place. [2023-12-09 15:32:34,892 INFO L140 encePairwiseOnDemand]: 124/135 looper letters, 698 selfloop transitions, 150 changer transitions 233/1301 dead transitions. [2023-12-09 15:32:34,892 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 1301 transitions, 29228 flow [2023-12-09 15:32:34,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-09 15:32:34,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-12-09 15:32:34,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1105 transitions. [2023-12-09 15:32:34,894 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7441077441077442 [2023-12-09 15:32:34,894 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1105 transitions. [2023-12-09 15:32:34,894 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1105 transitions. [2023-12-09 15:32:34,895 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:32:34,895 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1105 transitions. [2023-12-09 15:32:34,896 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 100.45454545454545) internal successors, (1105), 11 states have internal predecessors, (1105), 0 states have call successors, (0), 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 15:32:34,898 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 135.0) internal successors, (1620), 12 states have internal predecessors, (1620), 0 states have call successors, (0), 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 15:32:34,898 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 135.0) internal successors, (1620), 12 states have internal predecessors, (1620), 0 states have call successors, (0), 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 15:32:34,898 INFO L308 CegarLoopForPetriNet]: 121 programPoint places, 123 predicate places. [2023-12-09 15:32:34,898 INFO L500 AbstractCegarLoop]: Abstraction has has 244 places, 1301 transitions, 29228 flow [2023-12-09 15:32:34,899 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 95.66666666666667) internal successors, (861), 9 states have internal predecessors, (861), 0 states have call successors, (0), 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 15:32:34,899 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:32:34,899 INFO L233 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:32:34,904 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-09 15:32:35,104 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:32:35,104 INFO L425 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-12-09 15:32:35,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:32:35,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1717381456, now seen corresponding path program 4 times [2023-12-09 15:32:35,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:32:35,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904206633] [2023-12-09 15:32:35,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:32:35,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:32:35,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:32:35,272 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-09 15:32:35,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:32:35,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904206633] [2023-12-09 15:32:35,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904206633] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:32:35,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [833873697] [2023-12-09 15:32:35,272 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-09 15:32:35,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:32:35,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:32:35,289 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 15:32:35,322 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 15:32:35,402 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-09 15:32:35,403 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-09 15:32:35,404 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-09 15:32:35,406 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:32:35,633 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-09 15:32:35,633 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-09 15:32:35,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [833873697] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:32:35,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-09 15:32:35,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 15 [2023-12-09 15:32:35,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653135169] [2023-12-09 15:32:35,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:32:35,635 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-09 15:32:35,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:32:35,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-09 15:32:35,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2023-12-09 15:32:35,637 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 135 [2023-12-09 15:32:35,638 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 1301 transitions, 29228 flow. Second operand has 9 states, 9 states have (on average 95.66666666666667) internal successors, (861), 9 states have internal predecessors, (861), 0 states have call successors, (0), 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 15:32:35,638 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:32:35,638 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 135 [2023-12-09 15:32:35,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:32:38,261 INFO L124 PetriNetUnfolderBase]: 6662/11672 cut-off events. [2023-12-09 15:32:38,261 INFO L125 PetriNetUnfolderBase]: For 121630/176410 co-relation queries the response was YES. [2023-12-09 15:32:38,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108537 conditions, 11672 events. 6662/11672 cut-off events. For 121630/176410 co-relation queries the response was YES. Maximal size of possible extension queue 695. Compared 89668 event pairs, 273 based on Foata normal form. 259/9641 useless extension candidates. Maximal degree in co-relation 85778. Up to 6709 conditions per place. [2023-12-09 15:32:38,390 INFO L140 encePairwiseOnDemand]: 122/135 looper letters, 642 selfloop transitions, 45 changer transitions 259/1159 dead transitions. [2023-12-09 15:32:38,391 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 1159 transitions, 27341 flow [2023-12-09 15:32:38,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-09 15:32:38,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-12-09 15:32:38,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1274 transitions. [2023-12-09 15:32:38,392 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.725925925925926 [2023-12-09 15:32:38,393 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1274 transitions. [2023-12-09 15:32:38,393 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1274 transitions. [2023-12-09 15:32:38,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:32:38,393 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1274 transitions. [2023-12-09 15:32:38,395 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 98.0) internal successors, (1274), 13 states have internal predecessors, (1274), 0 states have call successors, (0), 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 15:32:38,397 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 135.0) internal successors, (1890), 14 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:32:38,397 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 135.0) internal successors, (1890), 14 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:32:38,397 INFO L308 CegarLoopForPetriNet]: 121 programPoint places, 131 predicate places. [2023-12-09 15:32:38,397 INFO L500 AbstractCegarLoop]: Abstraction has has 252 places, 1159 transitions, 27341 flow [2023-12-09 15:32:38,398 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 95.66666666666667) internal successors, (861), 9 states have internal predecessors, (861), 0 states have call successors, (0), 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 15:32:38,398 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:32:38,398 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, 1, 1, 1] [2023-12-09 15:32:38,403 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-12-09 15:32:38,602 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:32:38,603 INFO L425 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-12-09 15:32:38,603 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:32:38,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1734392499, now seen corresponding path program 1 times [2023-12-09 15:32:38,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:32:38,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238353614] [2023-12-09 15:32:38,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:32:38,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:32:38,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:32:38,747 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-09 15:32:38,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:32:38,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238353614] [2023-12-09 15:32:38,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238353614] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:32:38,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [897457419] [2023-12-09 15:32:38,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:32:38,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:32:38,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:32:38,749 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 15:32:38,751 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 15:32:38,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:32:38,837 INFO L262 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-09 15:32:38,838 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:32:38,925 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-09 15:32:38,925 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:32:39,001 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-09 15:32:39,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [897457419] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 15:32:39,002 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-09 15:32:39,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 7 [2023-12-09 15:32:39,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841558302] [2023-12-09 15:32:39,002 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-09 15:32:39,002 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 15:32:39,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:32:39,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 15:32:39,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-09 15:32:39,003 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 135 [2023-12-09 15:32:39,004 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 1159 transitions, 27341 flow. Second operand has 7 states, 7 states have (on average 104.57142857142857) internal successors, (732), 7 states have internal predecessors, (732), 0 states have call successors, (0), 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 15:32:39,004 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:32:39,004 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 135 [2023-12-09 15:32:39,004 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:32:43,625 INFO L124 PetriNetUnfolderBase]: 12517/21421 cut-off events. [2023-12-09 15:32:43,626 INFO L125 PetriNetUnfolderBase]: For 283657/417461 co-relation queries the response was YES. [2023-12-09 15:32:43,673 INFO L83 FinitePrefix]: Finished finitePrefix Result has 209321 conditions, 21421 events. 12517/21421 cut-off events. For 283657/417461 co-relation queries the response was YES. Maximal size of possible extension queue 1303. Compared 177422 event pairs, 774 based on Foata normal form. 1059/18241 useless extension candidates. Maximal degree in co-relation 165700. Up to 13128 conditions per place. [2023-12-09 15:32:43,885 INFO L140 encePairwiseOnDemand]: 125/135 looper letters, 423 selfloop transitions, 419 changer transitions 318/1593 dead transitions. [2023-12-09 15:32:43,886 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 1593 transitions, 41983 flow [2023-12-09 15:32:43,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-09 15:32:43,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-12-09 15:32:43,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1190 transitions. [2023-12-09 15:32:43,887 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8013468013468014 [2023-12-09 15:32:43,887 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1190 transitions. [2023-12-09 15:32:43,887 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1190 transitions. [2023-12-09 15:32:43,888 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:32:43,888 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1190 transitions. [2023-12-09 15:32:43,889 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 108.18181818181819) internal successors, (1190), 11 states have internal predecessors, (1190), 0 states have call successors, (0), 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 15:32:43,891 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 135.0) internal successors, (1620), 12 states have internal predecessors, (1620), 0 states have call successors, (0), 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 15:32:43,891 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 135.0) internal successors, (1620), 12 states have internal predecessors, (1620), 0 states have call successors, (0), 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 15:32:43,891 INFO L308 CegarLoopForPetriNet]: 121 programPoint places, 141 predicate places. [2023-12-09 15:32:43,891 INFO L500 AbstractCegarLoop]: Abstraction has has 262 places, 1593 transitions, 41983 flow [2023-12-09 15:32:43,891 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 104.57142857142857) internal successors, (732), 7 states have internal predecessors, (732), 0 states have call successors, (0), 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 15:32:43,891 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:32:43,892 INFO L233 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:32:43,896 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 15:32:44,096 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,SelfDestructingSolverStorable13 [2023-12-09 15:32:44,096 INFO L425 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-12-09 15:32:44,096 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:32:44,097 INFO L85 PathProgramCache]: Analyzing trace with hash 186342964, now seen corresponding path program 2 times [2023-12-09 15:32:44,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:32:44,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504746346] [2023-12-09 15:32:44,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:32:44,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:32:44,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:32:44,375 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:32:44,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:32:44,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504746346] [2023-12-09 15:32:44,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504746346] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:32:44,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1150690175] [2023-12-09 15:32:44,376 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-09 15:32:44,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:32:44,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:32:44,402 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 15:32:44,442 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 15:32:44,506 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-09 15:32:44,507 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-09 15:32:44,508 INFO L262 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-09 15:32:44,509 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:32:44,771 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:32:44,771 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:32:44,980 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:32:44,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1150690175] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 15:32:44,980 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-09 15:32:44,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 24 [2023-12-09 15:32:44,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069941972] [2023-12-09 15:32:44,980 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-09 15:32:44,981 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-09 15:32:44,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:32:44,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-09 15:32:44,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=436, Unknown=0, NotChecked=0, Total=552 [2023-12-09 15:32:44,982 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 135 [2023-12-09 15:32:44,984 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 262 places, 1593 transitions, 41983 flow. Second operand has 24 states, 24 states have (on average 88.0) internal successors, (2112), 24 states have internal predecessors, (2112), 0 states have call successors, (0), 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 15:32:44,984 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:32:44,984 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 135 [2023-12-09 15:32:44,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:33:02,528 INFO L124 PetriNetUnfolderBase]: 34795/59427 cut-off events. [2023-12-09 15:33:02,528 INFO L125 PetriNetUnfolderBase]: For 565770/729489 co-relation queries the response was YES. [2023-12-09 15:33:02,776 INFO L83 FinitePrefix]: Finished finitePrefix Result has 631687 conditions, 59427 events. 34795/59427 cut-off events. For 565770/729489 co-relation queries the response was YES. Maximal size of possible extension queue 3366. Compared 565143 event pairs, 1104 based on Foata normal form. 1323/49783 useless extension candidates. Maximal degree in co-relation 598350. Up to 44231 conditions per place. [2023-12-09 15:33:03,759 INFO L140 encePairwiseOnDemand]: 117/135 looper letters, 3165 selfloop transitions, 654 changer transitions 748/4635 dead transitions. [2023-12-09 15:33:03,760 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 4635 transitions, 134930 flow [2023-12-09 15:33:03,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-12-09 15:33:03,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2023-12-09 15:33:03,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 3211 transitions. [2023-12-09 15:33:03,770 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6995642701525054 [2023-12-09 15:33:03,770 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 3211 transitions. [2023-12-09 15:33:03,770 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 3211 transitions. [2023-12-09 15:33:03,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:33:03,771 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 3211 transitions. [2023-12-09 15:33:03,775 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 34 states have (on average 94.44117647058823) internal successors, (3211), 34 states have internal predecessors, (3211), 0 states have call successors, (0), 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 15:33:03,778 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 35 states, 35 states have (on average 135.0) internal successors, (4725), 35 states have internal predecessors, (4725), 0 states have call successors, (0), 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 15:33:03,779 INFO L81 ComplementDD]: Finished complementDD. Result has 35 states, 35 states have (on average 135.0) internal successors, (4725), 35 states have internal predecessors, (4725), 0 states have call successors, (0), 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 15:33:03,779 INFO L308 CegarLoopForPetriNet]: 121 programPoint places, 174 predicate places. [2023-12-09 15:33:03,779 INFO L500 AbstractCegarLoop]: Abstraction has has 295 places, 4635 transitions, 134930 flow [2023-12-09 15:33:03,780 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 88.0) internal successors, (2112), 24 states have internal predecessors, (2112), 0 states have call successors, (0), 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 15:33:03,780 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:33:03,780 INFO L233 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:33:03,785 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 15:33:03,985 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,SelfDestructingSolverStorable14 [2023-12-09 15:33:03,985 INFO L425 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-12-09 15:33:03,985 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:33:03,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1754401366, now seen corresponding path program 3 times [2023-12-09 15:33:03,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:33:03,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909954374] [2023-12-09 15:33:03,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:33:03,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:33:04,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:33:04,286 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-09 15:33:04,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:33:04,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909954374] [2023-12-09 15:33:04,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909954374] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:33:04,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2087446765] [2023-12-09 15:33:04,287 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-09 15:33:04,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:33:04,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:33:04,302 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-09 15:33:04,306 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-09 15:33:04,439 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-12-09 15:33:04,440 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-09 15:33:04,441 INFO L262 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-09 15:33:04,443 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:33:04,952 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-09 15:33:04,953 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:33:05,233 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-09 15:33:05,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2087446765] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 15:33:05,234 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-09 15:33:05,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 24 [2023-12-09 15:33:05,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949605355] [2023-12-09 15:33:05,234 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-09 15:33:05,234 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-09 15:33:05,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:33:05,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-09 15:33:05,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=452, Unknown=0, NotChecked=0, Total=552 [2023-12-09 15:33:05,236 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 135 [2023-12-09 15:33:05,237 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 4635 transitions, 134930 flow. Second operand has 24 states, 24 states have (on average 87.41666666666667) internal successors, (2098), 24 states have internal predecessors, (2098), 0 states have call successors, (0), 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 15:33:05,237 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:33:05,237 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 135 [2023-12-09 15:33:05,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:34:34,075 INFO L124 PetriNetUnfolderBase]: 60009/107054 cut-off events. [2023-12-09 15:34:34,076 INFO L125 PetriNetUnfolderBase]: For 1214248/1518503 co-relation queries the response was YES. [2023-12-09 15:34:34,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1187402 conditions, 107054 events. 60009/107054 cut-off events. For 1214248/1518503 co-relation queries the response was YES. Maximal size of possible extension queue 6079. Compared 1142336 event pairs, 1447 based on Foata normal form. 4590/91880 useless extension candidates. Maximal degree in co-relation 833670. Up to 77346 conditions per place. [2023-12-09 15:34:36,217 INFO L140 encePairwiseOnDemand]: 114/135 looper letters, 7501 selfloop transitions, 1976 changer transitions 1596/11140 dead transitions. [2023-12-09 15:34:36,217 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 347 places, 11140 transitions, 342254 flow [2023-12-09 15:34:36,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2023-12-09 15:34:36,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2023-12-09 15:34:36,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 4931 transitions. [2023-12-09 15:34:36,221 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6891684136967156 [2023-12-09 15:34:36,221 INFO L72 ComplementDD]: Start complementDD. Operand 53 states and 4931 transitions. [2023-12-09 15:34:36,221 INFO L73 IsDeterministic]: Start isDeterministic. Operand 53 states and 4931 transitions. [2023-12-09 15:34:36,222 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:34:36,223 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 53 states and 4931 transitions. [2023-12-09 15:34:36,228 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 54 states, 53 states have (on average 93.0377358490566) internal successors, (4931), 53 states have internal predecessors, (4931), 0 states have call successors, (0), 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 15:34:36,234 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 54 states, 54 states have (on average 135.0) internal successors, (7290), 54 states have internal predecessors, (7290), 0 states have call successors, (0), 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 15:34:36,235 INFO L81 ComplementDD]: Finished complementDD. Result has 54 states, 54 states have (on average 135.0) internal successors, (7290), 54 states have internal predecessors, (7290), 0 states have call successors, (0), 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 15:34:36,235 INFO L308 CegarLoopForPetriNet]: 121 programPoint places, 226 predicate places. [2023-12-09 15:34:36,236 INFO L500 AbstractCegarLoop]: Abstraction has has 347 places, 11140 transitions, 342254 flow [2023-12-09 15:34:36,236 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 87.41666666666667) internal successors, (2098), 24 states have internal predecessors, (2098), 0 states have call successors, (0), 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 15:34:36,236 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:34:36,236 INFO L233 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:34:36,241 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-09 15:34:36,441 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-12-09 15:34:36,441 INFO L425 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-12-09 15:34:36,441 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:34:36,442 INFO L85 PathProgramCache]: Analyzing trace with hash -240805524, now seen corresponding path program 4 times [2023-12-09 15:34:36,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:34:36,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380159589] [2023-12-09 15:34:36,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:34:36,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:34:36,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:34:36,721 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-09 15:34:36,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:34:36,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380159589] [2023-12-09 15:34:36,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380159589] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:34:36,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1980522433] [2023-12-09 15:34:36,721 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-09 15:34:36,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:34:36,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:34:36,723 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-09 15:34:36,724 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-09 15:34:36,830 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-09 15:34:36,830 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-09 15:34:36,831 INFO L262 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-09 15:34:36,850 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:34:37,154 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-09 15:34:37,154 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:34:37,426 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-09 15:34:37,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1980522433] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 15:34:37,426 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-09 15:34:37,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 10] total 27 [2023-12-09 15:34:37,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883603825] [2023-12-09 15:34:37,426 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-09 15:34:37,427 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-12-09 15:34:37,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:34:37,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-12-09 15:34:37,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=593, Unknown=0, NotChecked=0, Total=702 [2023-12-09 15:34:37,429 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 135 [2023-12-09 15:34:37,430 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 347 places, 11140 transitions, 342254 flow. Second operand has 27 states, 27 states have (on average 87.07407407407408) internal successors, (2351), 27 states have internal predecessors, (2351), 0 states have call successors, (0), 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 15:34:37,430 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:34:37,430 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 135 [2023-12-09 15:34:37,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2023-12-09 15:36:16,125 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-09 15:36:16,125 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-09 15:36:16,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2023-12-09 15:36:16,271 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2023-12-09 15:36:16,279 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-12-09 15:36:16,480 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-12-09 15:36:16,481 WARN L624 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 83/135 universal loopers) in iteration 17,while PetriNetUnfolder was constructing finite prefix that currently has 462013 conditions, 35934 events (21809/35933 cut-off events. For 377245/675518 co-relation queries the response was YES. Maximal size of possible extension queue 5662. Compared 363452 event pairs, 329 based on Foata normal form. 5358/39320 useless extension candidates. Maximal degree in co-relation 453656. Up to 26408 conditions per place.). [2023-12-09 15:36:16,485 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2023-12-09 15:36:16,485 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2023-12-09 15:36:16,487 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2023-12-09 15:36:16,487 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2023-12-09 15:36:16,487 INFO L457 BasicCegarLoop]: Path program histogram: [5, 4, 4, 2, 1, 1] [2023-12-09 15:36:16,491 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-09 15:36:16,491 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-12-09 15:36:16,494 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 03:36:16 BasicIcfg [2023-12-09 15:36:16,494 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-09 15:36:16,494 INFO L158 Benchmark]: Toolchain (without parser) took 245718.06ms. Allocated memory was 179.3MB in the beginning and 7.8GB in the end (delta: 7.6GB). Free memory was 140.9MB in the beginning and 5.1GB in the end (delta: -4.9GB). Peak memory consumption was 3.3GB. Max. memory is 8.0GB. [2023-12-09 15:36:16,495 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 179.3MB. Free memory was 126.4MB in the beginning and 126.4MB in the end (delta: 81.7kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-09 15:36:16,495 INFO L158 Benchmark]: CACSL2BoogieTranslator took 168.16ms. Allocated memory is still 179.3MB. Free memory was 140.7MB in the beginning and 128.8MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-09 15:36:16,495 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.51ms. Allocated memory is still 179.3MB. Free memory was 128.8MB in the beginning and 127.1MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-09 15:36:16,495 INFO L158 Benchmark]: Boogie Preprocessor took 18.29ms. Allocated memory is still 179.3MB. Free memory was 127.1MB in the beginning and 125.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-09 15:36:16,495 INFO L158 Benchmark]: RCFGBuilder took 383.22ms. Allocated memory is still 179.3MB. Free memory was 125.3MB in the beginning and 103.6MB in the end (delta: 21.6MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. [2023-12-09 15:36:16,495 INFO L158 Benchmark]: TraceAbstraction took 245115.39ms. Allocated memory was 179.3MB in the beginning and 7.8GB in the end (delta: 7.6GB). Free memory was 103.0MB in the beginning and 5.1GB in the end (delta: -4.9GB). Peak memory consumption was 3.2GB. Max. memory is 8.0GB. [2023-12-09 15:36:16,496 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 179.3MB. Free memory was 126.4MB in the beginning and 126.4MB in the end (delta: 81.7kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 168.16ms. Allocated memory is still 179.3MB. Free memory was 140.7MB in the beginning and 128.8MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 23.51ms. Allocated memory is still 179.3MB. Free memory was 128.8MB in the beginning and 127.1MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 18.29ms. Allocated memory is still 179.3MB. Free memory was 127.1MB in the beginning and 125.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 383.22ms. Allocated memory is still 179.3MB. Free memory was 125.3MB in the beginning and 103.6MB in the end (delta: 21.6MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. * TraceAbstraction took 245115.39ms. Allocated memory was 179.3MB in the beginning and 7.8GB in the end (delta: 7.6GB). Free memory was 103.0MB in the beginning and 5.1GB in the end (delta: -4.9GB). Peak memory consumption was 3.2GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 105]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 83/135 universal loopers) in iteration 17,while PetriNetUnfolder was constructing finite prefix that currently has 462013 conditions, 35934 events (21809/35933 cut-off events. For 377245/675518 co-relation queries the response was YES. Maximal size of possible extension queue 5662. Compared 363452 event pairs, 329 based on Foata normal form. 5358/39320 useless extension candidates. Maximal degree in co-relation 453656. Up to 26408 conditions per place.). - TimeoutResultAtElement [Line: 97]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 83/135 universal loopers) in iteration 17,while PetriNetUnfolder was constructing finite prefix that currently has 462013 conditions, 35934 events (21809/35933 cut-off events. For 377245/675518 co-relation queries the response was YES. Maximal size of possible extension queue 5662. Compared 363452 event pairs, 329 based on Foata normal form. 5358/39320 useless extension candidates. Maximal degree in co-relation 453656. Up to 26408 conditions per place.). - TimeoutResultAtElement [Line: 96]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 83/135 universal loopers) in iteration 17,while PetriNetUnfolder was constructing finite prefix that currently has 462013 conditions, 35934 events (21809/35933 cut-off events. For 377245/675518 co-relation queries the response was YES. Maximal size of possible extension queue 5662. Compared 363452 event pairs, 329 based on Foata normal form. 5358/39320 useless extension candidates. Maximal degree in co-relation 453656. Up to 26408 conditions per place.). - TimeoutResultAtElement [Line: 98]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 83/135 universal loopers) in iteration 17,while PetriNetUnfolder was constructing finite prefix that currently has 462013 conditions, 35934 events (21809/35933 cut-off events. For 377245/675518 co-relation queries the response was YES. Maximal size of possible extension queue 5662. Compared 363452 event pairs, 329 based on Foata normal form. 5358/39320 useless extension candidates. Maximal degree in co-relation 453656. Up to 26408 conditions per place.). - TimeoutResultAtElement [Line: 95]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 83/135 universal loopers) in iteration 17,while PetriNetUnfolder was constructing finite prefix that currently has 462013 conditions, 35934 events (21809/35933 cut-off events. For 377245/675518 co-relation queries the response was YES. Maximal size of possible extension queue 5662. Compared 363452 event pairs, 329 based on Foata normal form. 5358/39320 useless extension candidates. Maximal degree in co-relation 453656. Up to 26408 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 154 locations, 5 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: 245.0s, OverallIterations: 17, TraceHistogramMax: 2, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 232.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3722 SdHoareTripleChecker+Valid, 3.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3722 mSDsluCounter, 1833 SdHoareTripleChecker+Invalid, 2.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1450 mSDsCounter, 277 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6578 IncrementalHoareTripleChecker+Invalid, 6855 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 277 mSolverCounterUnsat, 383 mSDtfsCounter, 6578 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2225 GetRequests, 1778 SyntacticMatches, 4 SemanticMatches, 443 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6496 ImplicationChecksByTransitivity, 4.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=342254occurred in iteration=16, InterpolantAutomatonStates: 250, 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, 8.4s InterpolantComputationTime, 3002 NumberOfCodeBlocks, 2982 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 3628 ConstructedInterpolants, 0 QuantifiedInterpolants, 20929 SizeOfPredicates, 92 NumberOfNonLiveVariables, 3283 ConjunctsInSsa, 116 ConjunctsInUnsatCore, 34 InterpolantComputations, 12 PerfectInterpolantSequences, 82/131 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown