/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/chl-match-subst.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-a20a710-m [2023-12-09 15:09:53,297 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-09 15:09:53,368 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 15:09:53,383 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-09 15:09:53,384 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-09 15:09:53,384 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-09 15:09:53,384 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-09 15:09:53,385 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-09 15:09:53,385 INFO L153 SettingsManager]: * Use SBE=true [2023-12-09 15:09:53,385 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-09 15:09:53,385 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-09 15:09:53,386 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-09 15:09:53,386 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-09 15:09:53,386 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-09 15:09:53,386 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-09 15:09:53,387 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-09 15:09:53,387 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-09 15:09:53,387 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-09 15:09:53,387 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-09 15:09:53,388 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-09 15:09:53,395 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-09 15:09:53,395 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-09 15:09:53,396 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-09 15:09:53,396 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-09 15:09:53,397 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-09 15:09:53,397 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:09:53,397 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-09 15:09:53,397 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-09 15:09:53,397 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-09 15:09:53,398 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-09 15:09:53,398 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-09 15:09:53,398 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-09 15:09:53,399 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-09 15:09:53,399 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-12-09 15:09:53,599 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-09 15:09:53,616 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-09 15:09:53,618 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-09 15:09:53,619 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-09 15:09:53,619 INFO L274 PluginConnector]: CDTParser initialized [2023-12-09 15:09:53,620 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-match-subst.wvr.c [2023-12-09 15:09:54,633 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-09 15:09:54,802 INFO L384 CDTParser]: Found 1 translation units. [2023-12-09 15:09:54,802 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-match-subst.wvr.c [2023-12-09 15:09:54,808 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe37098d9/b4b9b4037ede42a7ab37216b988c238e/FLAGeb7d549b6 [2023-12-09 15:09:54,817 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe37098d9/b4b9b4037ede42a7ab37216b988c238e [2023-12-09 15:09:54,819 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-09 15:09:54,820 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-09 15:09:54,821 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-09 15:09:54,821 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-09 15:09:54,824 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-09 15:09:54,824 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:09:54" (1/1) ... [2023-12-09 15:09:54,825 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dfe3a5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:54, skipping insertion in model container [2023-12-09 15:09:54,825 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:09:54" (1/1) ... [2023-12-09 15:09:54,840 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-09 15:09:54,959 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/chl-match-subst.wvr.c[3056,3069] [2023-12-09 15:09:54,964 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:09:54,971 INFO L202 MainTranslator]: Completed pre-run [2023-12-09 15:09:54,987 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/chl-match-subst.wvr.c[3056,3069] [2023-12-09 15:09:54,989 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:09:54,999 INFO L206 MainTranslator]: Completed translation [2023-12-09 15:09:54,999 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:54 WrapperNode [2023-12-09 15:09:54,999 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-09 15:09:55,000 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-09 15:09:55,000 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-09 15:09:55,000 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-09 15:09:55,005 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:54" (1/1) ... [2023-12-09 15:09:55,013 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:54" (1/1) ... [2023-12-09 15:09:55,033 INFO L138 Inliner]: procedures = 23, calls = 34, calls flagged for inlining = 12, calls inlined = 22, statements flattened = 217 [2023-12-09 15:09:55,034 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-09 15:09:55,034 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-09 15:09:55,034 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-09 15:09:55,035 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-09 15:09:55,041 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:54" (1/1) ... [2023-12-09 15:09:55,041 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:54" (1/1) ... [2023-12-09 15:09:55,043 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:54" (1/1) ... [2023-12-09 15:09:55,043 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:54" (1/1) ... [2023-12-09 15:09:55,051 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:54" (1/1) ... [2023-12-09 15:09:55,053 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:54" (1/1) ... [2023-12-09 15:09:55,054 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:54" (1/1) ... [2023-12-09 15:09:55,055 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:54" (1/1) ... [2023-12-09 15:09:55,057 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-09 15:09:55,061 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-09 15:09:55,061 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-09 15:09:55,061 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-09 15:09:55,062 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:54" (1/1) ... [2023-12-09 15:09:55,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:09:55,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:09:55,089 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 15:09:55,091 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 15:09:55,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-09 15:09:55,109 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-12-09 15:09:55,109 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-12-09 15:09:55,109 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-12-09 15:09:55,109 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-12-09 15:09:55,109 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-12-09 15:09:55,109 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-12-09 15:09:55,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-09 15:09:55,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-09 15:09:55,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-09 15:09:55,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-09 15:09:55,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-09 15:09:55,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-09 15:09:55,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-09 15:09:55,111 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 15:09:55,182 INFO L241 CfgBuilder]: Building ICFG [2023-12-09 15:09:55,184 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-09 15:09:55,467 INFO L282 CfgBuilder]: Performing block encoding [2023-12-09 15:09:55,483 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-09 15:09:55,483 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-09 15:09:55,484 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:09:55 BoogieIcfgContainer [2023-12-09 15:09:55,484 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-09 15:09:55,486 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-09 15:09:55,486 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-09 15:09:55,488 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-09 15:09:55,488 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:09:54" (1/3) ... [2023-12-09 15:09:55,488 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@373a8baf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:09:55, skipping insertion in model container [2023-12-09 15:09:55,489 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:09:54" (2/3) ... [2023-12-09 15:09:55,489 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@373a8baf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:09:55, skipping insertion in model container [2023-12-09 15:09:55,489 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:09:55" (3/3) ... [2023-12-09 15:09:55,490 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-match-subst.wvr.c [2023-12-09 15:09:55,503 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-09 15:09:55,503 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-09 15:09:55,503 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-09 15:09:55,623 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-12-09 15:09:55,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 293 places, 297 transitions, 615 flow [2023-12-09 15:09:55,756 INFO L124 PetriNetUnfolderBase]: 14/294 cut-off events. [2023-12-09 15:09:55,756 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-12-09 15:09:55,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 307 conditions, 294 events. 14/294 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 415 event pairs, 0 based on Foata normal form. 0/279 useless extension candidates. Maximal degree in co-relation 199. Up to 2 conditions per place. [2023-12-09 15:09:55,768 INFO L82 GeneralOperation]: Start removeDead. Operand has 293 places, 297 transitions, 615 flow [2023-12-09 15:09:55,782 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 279 places, 283 transitions, 584 flow [2023-12-09 15:09:55,788 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 15:09:55,799 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;@1c0770a6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 15:09:55,800 INFO L363 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-12-09 15:09:55,861 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 15:09:55,861 INFO L124 PetriNetUnfolderBase]: 14/282 cut-off events. [2023-12-09 15:09:55,862 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-12-09 15:09:55,862 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:09:55,863 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:09:55,864 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 1 more)] === [2023-12-09 15:09:55,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:09:55,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1203578621, now seen corresponding path program 1 times [2023-12-09 15:09:55,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:09:55,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716856293] [2023-12-09 15:09:55,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:09:55,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:09:56,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:10:03,120 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 15:10:03,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:10:03,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716856293] [2023-12-09 15:10:03,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716856293] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:10:03,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:10:03,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [46] imperfect sequences [] total 46 [2023-12-09 15:10:03,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023404367] [2023-12-09 15:10:03,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:10:03,128 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-12-09 15:10:03,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:10:03,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-12-09 15:10:03,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=1976, Unknown=0, NotChecked=0, Total=2070 [2023-12-09 15:10:03,164 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 297 [2023-12-09 15:10:03,173 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 283 transitions, 584 flow. Second operand has 46 states, 46 states have (on average 156.7391304347826) internal successors, (7210), 46 states have internal predecessors, (7210), 0 states have call successors, (0), 0 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 15:10:03,174 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:10:03,174 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 297 [2023-12-09 15:10:03,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:10:39,536 INFO L124 PetriNetUnfolderBase]: 55706/112277 cut-off events. [2023-12-09 15:10:39,537 INFO L125 PetriNetUnfolderBase]: For 3913/3913 co-relation queries the response was YES. [2023-12-09 15:10:39,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 200727 conditions, 112277 events. 55706/112277 cut-off events. For 3913/3913 co-relation queries the response was YES. Maximal size of possible extension queue 1478. Compared 1159526 event pairs, 2703 based on Foata normal form. 11402/119308 useless extension candidates. Maximal degree in co-relation 200142. Up to 8193 conditions per place. [2023-12-09 15:10:40,286 INFO L140 encePairwiseOnDemand]: 215/297 looper letters, 1908 selfloop transitions, 40 changer transitions 66/2155 dead transitions. [2023-12-09 15:10:40,286 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 348 places, 2155 transitions, 8551 flow [2023-12-09 15:10:40,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2023-12-09 15:10:40,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2023-12-09 15:10:40,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 13061 transitions. [2023-12-09 15:10:40,319 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6282347282347283 [2023-12-09 15:10:40,320 INFO L72 ComplementDD]: Start complementDD. Operand 70 states and 13061 transitions. [2023-12-09 15:10:40,320 INFO L73 IsDeterministic]: Start isDeterministic. Operand 70 states and 13061 transitions. [2023-12-09 15:10:40,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:10:40,330 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 70 states and 13061 transitions. [2023-12-09 15:10:40,357 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 71 states, 70 states have (on average 186.5857142857143) internal successors, (13061), 70 states have internal predecessors, (13061), 0 states have call successors, (0), 0 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 15:10:40,389 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 71 states, 71 states have (on average 297.0) internal successors, (21087), 71 states have internal predecessors, (21087), 0 states have call successors, (0), 0 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 15:10:40,396 INFO L81 ComplementDD]: Finished complementDD. Result has 71 states, 71 states have (on average 297.0) internal successors, (21087), 71 states have internal predecessors, (21087), 0 states have call successors, (0), 0 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 15:10:40,400 INFO L308 CegarLoopForPetriNet]: 279 programPoint places, 69 predicate places. [2023-12-09 15:10:40,400 INFO L500 AbstractCegarLoop]: Abstraction has has 348 places, 2155 transitions, 8551 flow [2023-12-09 15:10:40,402 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 156.7391304347826) internal successors, (7210), 46 states have internal predecessors, (7210), 0 states have call successors, (0), 0 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 15:10:40,402 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:10:40,402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:10:40,403 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-09 15:10:40,403 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 1 more)] === [2023-12-09 15:10:40,405 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:10:40,405 INFO L85 PathProgramCache]: Analyzing trace with hash -885475017, now seen corresponding path program 2 times [2023-12-09 15:10:40,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:10:40,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869080776] [2023-12-09 15:10:40,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:10:40,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:10:40,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:10:44,134 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 15:10:44,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:10:44,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869080776] [2023-12-09 15:10:44,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869080776] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:10:44,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:10:44,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [46] imperfect sequences [] total 46 [2023-12-09 15:10:44,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134739755] [2023-12-09 15:10:44,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:10:44,137 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-12-09 15:10:44,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:10:44,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-12-09 15:10:44,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=1976, Unknown=0, NotChecked=0, Total=2070 [2023-12-09 15:10:44,142 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 297 [2023-12-09 15:10:44,146 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 348 places, 2155 transitions, 8551 flow. Second operand has 46 states, 46 states have (on average 156.7391304347826) internal successors, (7210), 46 states have internal predecessors, (7210), 0 states have call successors, (0), 0 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 15:10:44,146 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:10:44,146 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 297 [2023-12-09 15:10:44,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:11:27,139 INFO L124 PetriNetUnfolderBase]: 104229/202155 cut-off events. [2023-12-09 15:11:27,145 INFO L125 PetriNetUnfolderBase]: For 20906/26978 co-relation queries the response was YES. [2023-12-09 15:11:27,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 530185 conditions, 202155 events. 104229/202155 cut-off events. For 20906/26978 co-relation queries the response was YES. Maximal size of possible extension queue 2566. Compared 2144639 event pairs, 1726 based on Foata normal form. 14/196256 useless extension candidates. Maximal degree in co-relation 527675. Up to 45171 conditions per place. [2023-12-09 15:11:28,573 INFO L140 encePairwiseOnDemand]: 229/297 looper letters, 15329 selfloop transitions, 3986 changer transitions 167/19623 dead transitions. [2023-12-09 15:11:28,574 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 476 places, 19623 transitions, 119358 flow [2023-12-09 15:11:28,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2023-12-09 15:11:28,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2023-12-09 15:11:28,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 23667 transitions. [2023-12-09 15:11:28,600 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6177276642392922 [2023-12-09 15:11:28,600 INFO L72 ComplementDD]: Start complementDD. Operand 129 states and 23667 transitions. [2023-12-09 15:11:28,601 INFO L73 IsDeterministic]: Start isDeterministic. Operand 129 states and 23667 transitions. [2023-12-09 15:11:28,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:11:28,608 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 129 states and 23667 transitions. [2023-12-09 15:11:28,637 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 130 states, 129 states have (on average 183.46511627906978) internal successors, (23667), 129 states have internal predecessors, (23667), 0 states have call successors, (0), 0 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 15:11:28,676 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 130 states, 130 states have (on average 297.0) internal successors, (38610), 130 states have internal predecessors, (38610), 0 states have call successors, (0), 0 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 15:11:28,687 INFO L81 ComplementDD]: Finished complementDD. Result has 130 states, 130 states have (on average 297.0) internal successors, (38610), 130 states have internal predecessors, (38610), 0 states have call successors, (0), 0 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 15:11:28,688 INFO L308 CegarLoopForPetriNet]: 279 programPoint places, 197 predicate places. [2023-12-09 15:11:28,688 INFO L500 AbstractCegarLoop]: Abstraction has has 476 places, 19623 transitions, 119358 flow [2023-12-09 15:11:28,690 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 156.7391304347826) internal successors, (7210), 46 states have internal predecessors, (7210), 0 states have call successors, (0), 0 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 15:11:28,690 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:11:28,690 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:11:28,690 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-09 15:11:28,690 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 1 more)] === [2023-12-09 15:11:28,691 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:11:28,691 INFO L85 PathProgramCache]: Analyzing trace with hash -526664345, now seen corresponding path program 3 times [2023-12-09 15:11:28,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:11:28,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171155049] [2023-12-09 15:11:28,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:11:28,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:11:28,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:11:32,999 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 15:11:32,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:11:32,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171155049] [2023-12-09 15:11:33,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171155049] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:11:33,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:11:33,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [48] imperfect sequences [] total 48 [2023-12-09 15:11:33,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909839415] [2023-12-09 15:11:33,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:11:33,001 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-12-09 15:11:33,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:11:33,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-12-09 15:11:33,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=2156, Unknown=0, NotChecked=0, Total=2256 [2023-12-09 15:11:33,005 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 297 [2023-12-09 15:11:33,018 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 476 places, 19623 transitions, 119358 flow. Second operand has 48 states, 48 states have (on average 133.04166666666666) internal successors, (6386), 48 states have internal predecessors, (6386), 0 states have call successors, (0), 0 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 15:11:33,018 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:11:33,019 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 297 [2023-12-09 15:11:33,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand