/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg true -i ../../../trunk/examples/svcomp/weaver/parallel-ticket-6.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-29 21:50:39,653 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 21:50:39,733 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2023-11-29 21:50:39,761 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 21:50:39,762 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 21:50:39,762 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 21:50:39,762 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 21:50:39,763 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 21:50:39,763 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 21:50:39,767 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 21:50:39,767 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 21:50:39,767 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 21:50:39,768 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 21:50:39,769 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 21:50:39,769 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 21:50:39,769 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 21:50:39,769 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 21:50:39,770 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 21:50:39,770 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 21:50:39,770 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 21:50:39,770 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 21:50:39,771 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 21:50:39,771 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 21:50:39,771 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-29 21:50:39,772 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 21:50:39,772 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-29 21:50:39,772 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 21:50:39,772 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 21:50:39,773 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 21:50:39,773 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 21:50:39,774 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 21:50:39,774 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 21:50:39,774 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 21:50:39,774 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-11-29 21:50:39,995 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 21:50:40,013 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 21:50:40,015 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 21:50:40,016 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 21:50:40,016 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 21:50:40,017 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-6.wvr.c [2023-11-29 21:50:41,101 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 21:50:41,298 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 21:50:41,298 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-6.wvr.c [2023-11-29 21:50:41,304 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b03f1237/79f6a8a0e4db43dca3e73c7e384b5144/FLAG3928108f2 [2023-11-29 21:50:41,314 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b03f1237/79f6a8a0e4db43dca3e73c7e384b5144 [2023-11-29 21:50:41,316 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 21:50:41,317 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-29 21:50:41,318 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 21:50:41,318 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 21:50:41,322 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 21:50:41,322 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:50:41" (1/1) ... [2023-11-29 21:50:41,323 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e3cce4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:50:41, skipping insertion in model container [2023-11-29 21:50:41,323 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:50:41" (1/1) ... [2023-11-29 21:50:41,349 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 21:50:41,478 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/parallel-ticket-6.wvr.c[4478,4491] [2023-11-29 21:50:41,482 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 21:50:41,489 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 21:50:41,519 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/parallel-ticket-6.wvr.c[4478,4491] [2023-11-29 21:50:41,520 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 21:50:41,536 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 21:50:41,537 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 21:50:41,542 INFO L206 MainTranslator]: Completed translation [2023-11-29 21:50:41,543 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:50:41 WrapperNode [2023-11-29 21:50:41,543 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 21:50:41,544 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 21:50:41,544 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 21:50:41,544 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 21:50:41,549 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:50:41" (1/1) ... [2023-11-29 21:50:41,556 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:50:41" (1/1) ... [2023-11-29 21:50:41,584 INFO L138 Inliner]: procedures = 25, calls = 100, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 293 [2023-11-29 21:50:41,584 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 21:50:41,585 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 21:50:41,585 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 21:50:41,585 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 21:50:41,598 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:50:41" (1/1) ... [2023-11-29 21:50:41,598 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:50:41" (1/1) ... [2023-11-29 21:50:41,602 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:50:41" (1/1) ... [2023-11-29 21:50:41,602 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:50:41" (1/1) ... [2023-11-29 21:50:41,608 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:50:41" (1/1) ... [2023-11-29 21:50:41,610 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:50:41" (1/1) ... [2023-11-29 21:50:41,612 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:50:41" (1/1) ... [2023-11-29 21:50:41,613 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:50:41" (1/1) ... [2023-11-29 21:50:41,616 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 21:50:41,617 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 21:50:41,617 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 21:50:41,617 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 21:50:41,618 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:50:41" (1/1) ... [2023-11-29 21:50:41,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-29 21:50:41,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-29 21:50:41,653 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-29 21:50:41,656 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-29 21:50:41,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 21:50:41,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 21:50:41,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-29 21:50:41,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-29 21:50:41,673 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-29 21:50:41,673 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-29 21:50:41,674 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-29 21:50:41,674 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-29 21:50:41,674 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-29 21:50:41,674 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-29 21:50:41,674 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-29 21:50:41,674 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-29 21:50:41,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-29 21:50:41,674 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2023-11-29 21:50:41,675 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2023-11-29 21:50:41,675 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2023-11-29 21:50:41,675 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2023-11-29 21:50:41,675 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-29 21:50:41,675 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-29 21:50:41,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 21:50:41,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 21:50:41,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 21:50:41,677 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-29 21:50:41,787 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 21:50:41,789 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 21:50:42,067 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 21:50:42,180 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 21:50:42,180 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 21:50:42,181 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:50:42 BoogieIcfgContainer [2023-11-29 21:50:42,181 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 21:50:42,183 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 21:50:42,183 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 21:50:42,186 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 21:50:42,186 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 09:50:41" (1/3) ... [2023-11-29 21:50:42,187 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@377ebcb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 09:50:42, skipping insertion in model container [2023-11-29 21:50:42,187 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:50:41" (2/3) ... [2023-11-29 21:50:42,187 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@377ebcb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 09:50:42, skipping insertion in model container [2023-11-29 21:50:42,187 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:50:42" (3/3) ... [2023-11-29 21:50:42,188 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-6.wvr.c [2023-11-29 21:50:42,203 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 21:50:42,203 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 21:50:42,203 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 21:50:42,277 INFO L144 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2023-11-29 21:50:42,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 217 places, 200 transitions, 442 flow [2023-11-29 21:50:42,385 INFO L124 PetriNetUnfolderBase]: 2/194 cut-off events. [2023-11-29 21:50:42,385 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-29 21:50:42,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 219 conditions, 194 events. 2/194 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 95 event pairs, 0 based on Foata normal form. 0/191 useless extension candidates. Maximal degree in co-relation 150. Up to 2 conditions per place. [2023-11-29 21:50:42,389 INFO L82 GeneralOperation]: Start removeDead. Operand has 217 places, 200 transitions, 442 flow [2023-11-29 21:50:42,393 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 194 places, 177 transitions, 390 flow [2023-11-29 21:50:42,402 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 21:50:42,407 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;@71a68dc4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 21:50:42,408 INFO L363 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-11-29 21:50:42,448 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 21:50:42,448 INFO L124 PetriNetUnfolderBase]: 2/176 cut-off events. [2023-11-29 21:50:42,448 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-29 21:50:42,448 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 21:50:42,449 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 21:50:42,449 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 4 more)] === [2023-11-29 21:50:42,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 21:50:42,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1714741596, now seen corresponding path program 1 times [2023-11-29 21:50:42,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 21:50:42,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079944209] [2023-11-29 21:50:42,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 21:50:42,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 21:50:42,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 21:50:44,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 21:50:44,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 21:50:44,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079944209] [2023-11-29 21:50:44,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079944209] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 21:50:44,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 21:50:44,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 21:50:44,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840407749] [2023-11-29 21:50:44,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 21:50:44,732 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 21:50:44,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 21:50:44,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 21:50:44,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-29 21:50:44,781 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 200 [2023-11-29 21:50:44,786 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 177 transitions, 390 flow. Second operand has 10 states, 10 states have (on average 147.3) internal successors, (1473), 10 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 21:50:44,786 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 21:50:44,787 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 200 [2023-11-29 21:50:44,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 21:51:07,810 INFO L124 PetriNetUnfolderBase]: 156365/223333 cut-off events. [2023-11-29 21:51:07,811 INFO L125 PetriNetUnfolderBase]: For 29374/29374 co-relation queries the response was YES. [2023-11-29 21:51:08,521 INFO L83 FinitePrefix]: Finished finitePrefix Result has 442262 conditions, 223333 events. 156365/223333 cut-off events. For 29374/29374 co-relation queries the response was YES. Maximal size of possible extension queue 8118. Compared 1852559 event pairs, 112309 based on Foata normal form. 3/221755 useless extension candidates. Maximal degree in co-relation 357718. Up to 102416 conditions per place. [2023-11-29 21:51:09,441 INFO L140 encePairwiseOnDemand]: 181/200 looper letters, 107 selfloop transitions, 17 changer transitions 14/258 dead transitions. [2023-11-29 21:51:09,441 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 258 transitions, 885 flow [2023-11-29 21:51:09,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 21:51:09,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-29 21:51:09,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1704 transitions. [2023-11-29 21:51:09,459 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7745454545454545 [2023-11-29 21:51:09,460 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1704 transitions. [2023-11-29 21:51:09,460 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1704 transitions. [2023-11-29 21:51:09,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 21:51:09,467 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1704 transitions. [2023-11-29 21:51:09,474 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 154.9090909090909) internal successors, (1704), 11 states have internal predecessors, (1704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 21:51:09,484 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 200.0) internal successors, (2400), 12 states have internal predecessors, (2400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 21:51:09,485 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 200.0) internal successors, (2400), 12 states have internal predecessors, (2400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 21:51:09,489 INFO L307 CegarLoopForPetriNet]: 194 programPoint places, 10 predicate places. [2023-11-29 21:51:09,489 INFO L500 AbstractCegarLoop]: Abstraction has has 204 places, 258 transitions, 885 flow [2023-11-29 21:51:09,490 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 147.3) internal successors, (1473), 10 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 21:51:09,490 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 21:51:09,491 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 21:51:09,491 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 21:51:09,491 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 4 more)] === [2023-11-29 21:51:09,492 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 21:51:09,492 INFO L85 PathProgramCache]: Analyzing trace with hash 260913706, now seen corresponding path program 2 times [2023-11-29 21:51:09,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 21:51:09,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357340819] [2023-11-29 21:51:09,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 21:51:09,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 21:51:09,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 21:51:09,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 21:51:09,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 21:51:09,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357340819] [2023-11-29 21:51:09,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357340819] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 21:51:09,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 21:51:09,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 21:51:09,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300637932] [2023-11-29 21:51:09,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 21:51:09,795 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 21:51:09,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 21:51:09,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 21:51:09,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 21:51:09,800 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 200 [2023-11-29 21:51:09,801 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 258 transitions, 885 flow. Second operand has 8 states, 8 states have (on average 153.0) internal successors, (1224), 8 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 21:51:09,801 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 21:51:09,801 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 200 [2023-11-29 21:51:09,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 21:52:00,931 INFO L124 PetriNetUnfolderBase]: 349033/516820 cut-off events. [2023-11-29 21:52:00,931 INFO L125 PetriNetUnfolderBase]: For 258825/302765 co-relation queries the response was YES. [2023-11-29 21:52:02,908 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1357677 conditions, 516820 events. 349033/516820 cut-off events. For 258825/302765 co-relation queries the response was YES. Maximal size of possible extension queue 19971. Compared 4962900 event pairs, 94544 based on Foata normal form. 7926/520063 useless extension candidates. Maximal degree in co-relation 1011332. Up to 234724 conditions per place. [2023-11-29 21:52:06,285 INFO L140 encePairwiseOnDemand]: 183/200 looper letters, 278 selfloop transitions, 112 changer transitions 40/571 dead transitions. [2023-11-29 21:52:06,286 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 571 transitions, 3256 flow [2023-11-29 21:52:06,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 21:52:06,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-29 21:52:06,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1482 transitions. [2023-11-29 21:52:06,294 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8233333333333334 [2023-11-29 21:52:06,294 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1482 transitions. [2023-11-29 21:52:06,294 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1482 transitions. [2023-11-29 21:52:06,297 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 21:52:06,297 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1482 transitions. [2023-11-29 21:52:06,315 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 164.66666666666666) internal successors, (1482), 9 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 21:52:06,318 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 200.0) internal successors, (2000), 10 states have internal predecessors, (2000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 21:52:06,320 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 200.0) internal successors, (2000), 10 states have internal predecessors, (2000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 21:52:06,320 INFO L307 CegarLoopForPetriNet]: 194 programPoint places, 18 predicate places. [2023-11-29 21:52:06,320 INFO L500 AbstractCegarLoop]: Abstraction has has 212 places, 571 transitions, 3256 flow [2023-11-29 21:52:06,321 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 153.0) internal successors, (1224), 8 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 21:52:06,321 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 21:52:06,321 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 21:52:06,322 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 21:52:06,322 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 4 more)] === [2023-11-29 21:52:06,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 21:52:06,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1455566134, now seen corresponding path program 3 times [2023-11-29 21:52:06,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 21:52:06,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706284209] [2023-11-29 21:52:06,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 21:52:06,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 21:52:06,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 21:52:06,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 21:52:06,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 21:52:06,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706284209] [2023-11-29 21:52:06,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706284209] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 21:52:06,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 21:52:06,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 21:52:06,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478105890] [2023-11-29 21:52:06,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 21:52:06,900 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 21:52:06,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 21:52:06,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 21:52:06,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-11-29 21:52:06,902 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 200 [2023-11-29 21:52:06,904 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 571 transitions, 3256 flow. Second operand has 7 states, 7 states have (on average 153.85714285714286) internal successors, (1077), 7 states have internal predecessors, (1077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 21:52:06,904 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 21:52:06,904 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 200 [2023-11-29 21:52:06,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand