/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/parallel-ticket-6.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-a20a710-m [2023-12-09 15:20:31,425 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-09 15:20:31,463 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 15:20:31,479 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-09 15:20:31,480 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-09 15:20:31,480 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-09 15:20:31,480 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-09 15:20:31,480 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-09 15:20:31,481 INFO L153 SettingsManager]: * Use SBE=true [2023-12-09 15:20:31,481 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-09 15:20:31,481 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-09 15:20:31,481 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-09 15:20:31,482 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-09 15:20:31,482 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-09 15:20:31,482 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-09 15:20:31,482 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-09 15:20:31,482 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-09 15:20:31,483 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-09 15:20:31,483 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-09 15:20:31,483 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-09 15:20:31,483 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-09 15:20:31,484 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-09 15:20:31,484 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-09 15:20:31,484 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-09 15:20:31,484 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-09 15:20:31,485 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:20:31,485 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-09 15:20:31,485 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-09 15:20:31,485 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-09 15:20:31,486 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-09 15:20:31,486 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-09 15:20:31,486 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-09 15:20:31,486 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-09 15:20:31,486 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-12-09 15:20:31,679 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-09 15:20:31,699 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-09 15:20:31,701 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-09 15:20:31,702 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-09 15:20:31,702 INFO L274 PluginConnector]: CDTParser initialized [2023-12-09 15:20:31,703 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-6.wvr.c [2023-12-09 15:20:32,798 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-09 15:20:32,947 INFO L384 CDTParser]: Found 1 translation units. [2023-12-09 15:20:32,948 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-6.wvr.c [2023-12-09 15:20:32,954 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a96db1f77/75be1a9db7ff47ed9f7fd43bf539c390/FLAG61a2f95b7 [2023-12-09 15:20:32,966 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a96db1f77/75be1a9db7ff47ed9f7fd43bf539c390 [2023-12-09 15:20:32,968 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-09 15:20:32,970 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-09 15:20:32,972 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-09 15:20:32,972 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-09 15:20:32,976 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-09 15:20:32,977 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:20:32" (1/1) ... [2023-12-09 15:20:32,977 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f27d0a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:20:32, skipping insertion in model container [2023-12-09 15:20:32,978 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:20:32" (1/1) ... [2023-12-09 15:20:32,996 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-09 15:20:33,124 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] [2023-12-09 15:20:33,130 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:20:33,140 INFO L202 MainTranslator]: Completed pre-run [2023-12-09 15:20:33,175 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] [2023-12-09 15:20:33,176 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:20:33,184 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-12-09 15:20:33,184 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-12-09 15:20:33,189 INFO L206 MainTranslator]: Completed translation [2023-12-09 15:20:33,191 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:20:33 WrapperNode [2023-12-09 15:20:33,191 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-09 15:20:33,193 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-09 15:20:33,193 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-09 15:20:33,193 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-09 15:20:33,198 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:20:33" (1/1) ... [2023-12-09 15:20:33,217 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:20:33" (1/1) ... [2023-12-09 15:20:33,248 INFO L138 Inliner]: procedures = 25, calls = 100, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 293 [2023-12-09 15:20:33,248 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-09 15:20:33,249 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-09 15:20:33,249 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-09 15:20:33,249 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-09 15:20:33,256 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:20:33" (1/1) ... [2023-12-09 15:20:33,256 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:20:33" (1/1) ... [2023-12-09 15:20:33,264 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:20:33" (1/1) ... [2023-12-09 15:20:33,264 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:20:33" (1/1) ... [2023-12-09 15:20:33,269 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:20:33" (1/1) ... [2023-12-09 15:20:33,270 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:20:33" (1/1) ... [2023-12-09 15:20:33,271 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:20:33" (1/1) ... [2023-12-09 15:20:33,272 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:20:33" (1/1) ... [2023-12-09 15:20:33,274 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-09 15:20:33,275 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-09 15:20:33,275 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-09 15:20:33,275 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-09 15:20:33,275 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:20:33" (1/1) ... [2023-12-09 15:20:33,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:20:33,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:20:33,307 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 15:20:33,311 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 15:20:33,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-09 15:20:33,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-09 15:20:33,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-09 15:20:33,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-09 15:20:33,328 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-12-09 15:20:33,328 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-12-09 15:20:33,328 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-12-09 15:20:33,328 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-12-09 15:20:33,328 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-12-09 15:20:33,328 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-12-09 15:20:33,328 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-12-09 15:20:33,328 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-12-09 15:20:33,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-09 15:20:33,329 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2023-12-09 15:20:33,329 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2023-12-09 15:20:33,329 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2023-12-09 15:20:33,329 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2023-12-09 15:20:33,329 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-12-09 15:20:33,329 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-12-09 15:20:33,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-09 15:20:33,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-09 15:20:33,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-09 15:20:33,330 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 15:20:33,411 INFO L241 CfgBuilder]: Building ICFG [2023-12-09 15:20:33,412 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-09 15:20:33,687 INFO L282 CfgBuilder]: Performing block encoding [2023-12-09 15:20:33,759 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-09 15:20:33,759 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-09 15:20:33,762 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:20:33 BoogieIcfgContainer [2023-12-09 15:20:33,762 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-09 15:20:33,763 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-09 15:20:33,763 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-09 15:20:33,765 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-09 15:20:33,766 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:20:32" (1/3) ... [2023-12-09 15:20:33,766 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c6c6d94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:20:33, skipping insertion in model container [2023-12-09 15:20:33,766 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:20:33" (2/3) ... [2023-12-09 15:20:33,767 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c6c6d94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:20:33, skipping insertion in model container [2023-12-09 15:20:33,767 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:20:33" (3/3) ... [2023-12-09 15:20:33,768 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-6.wvr.c [2023-12-09 15:20:33,780 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-09 15:20:33,780 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-09 15:20:33,780 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-09 15:20:33,855 INFO L144 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2023-12-09 15:20:33,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 217 places, 200 transitions, 442 flow [2023-12-09 15:20:33,943 INFO L124 PetriNetUnfolderBase]: 2/194 cut-off events. [2023-12-09 15:20:33,944 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-12-09 15:20:33,947 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. [2023-12-09 15:20:33,947 INFO L82 GeneralOperation]: Start removeDead. Operand has 217 places, 200 transitions, 442 flow [2023-12-09 15:20:33,956 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 194 places, 177 transitions, 390 flow [2023-12-09 15:20:33,965 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 15:20:33,971 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;@396ff3fb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 15:20:33,971 INFO L363 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-12-09 15:20:34,012 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 15:20:34,012 INFO L124 PetriNetUnfolderBase]: 2/176 cut-off events. [2023-12-09 15:20:34,012 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-12-09 15:20:34,013 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:20:34,013 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] [2023-12-09 15:20:34,014 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)] === [2023-12-09 15:20:34,018 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:20:34,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1714741596, now seen corresponding path program 1 times [2023-12-09 15:20:34,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:20:34,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609332410] [2023-12-09 15:20:34,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:20:34,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:20:34,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:20:35,952 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 15:20:35,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:20:35,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609332410] [2023-12-09 15:20:35,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609332410] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:20:35,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:20:35,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:20:35,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519495845] [2023-12-09 15:20:35,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:20:35,961 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:20:35,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:20:35,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:20:35,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:20:35,991 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 200 [2023-12-09 15:20:35,995 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) [2023-12-09 15:20:35,995 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:20:35,995 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 200 [2023-12-09 15:20:35,996 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:20:56,062 INFO L124 PetriNetUnfolderBase]: 156365/223333 cut-off events. [2023-12-09 15:20:56,063 INFO L125 PetriNetUnfolderBase]: For 29374/29374 co-relation queries the response was YES. [2023-12-09 15:20:57,178 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. [2023-12-09 15:20:58,164 INFO L140 encePairwiseOnDemand]: 181/200 looper letters, 107 selfloop transitions, 17 changer transitions 14/258 dead transitions. [2023-12-09 15:20:58,164 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 258 transitions, 885 flow [2023-12-09 15:20:58,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-09 15:20:58,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-12-09 15:20:58,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1704 transitions. [2023-12-09 15:20:58,177 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7745454545454545 [2023-12-09 15:20:58,178 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1704 transitions. [2023-12-09 15:20:58,178 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1704 transitions. [2023-12-09 15:20:58,181 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:20:58,182 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1704 transitions. [2023-12-09 15:20:58,188 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) [2023-12-09 15:20:58,197 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) [2023-12-09 15:20:58,198 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) [2023-12-09 15:20:58,205 INFO L308 CegarLoopForPetriNet]: 194 programPoint places, 10 predicate places. [2023-12-09 15:20:58,206 INFO L500 AbstractCegarLoop]: Abstraction has has 204 places, 258 transitions, 885 flow [2023-12-09 15:20:58,207 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) [2023-12-09 15:20:58,207 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:20:58,207 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] [2023-12-09 15:20:58,207 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-09 15:20:58,207 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)] === [2023-12-09 15:20:58,208 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:20:58,208 INFO L85 PathProgramCache]: Analyzing trace with hash 260913706, now seen corresponding path program 2 times [2023-12-09 15:20:58,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:20:58,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611959360] [2023-12-09 15:20:58,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:20:58,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:20:58,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:20:58,466 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 15:20:58,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:20:58,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611959360] [2023-12-09 15:20:58,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611959360] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:20:58,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:20:58,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-09 15:20:58,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609422066] [2023-12-09 15:20:58,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:20:58,469 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-09 15:20:58,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:20:58,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-09 15:20:58,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-09 15:20:58,473 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 200 [2023-12-09 15:20:58,474 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) [2023-12-09 15:20:58,474 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:20:58,474 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 200 [2023-12-09 15:20:58,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand