/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg true -i ../../../trunk/examples/svcomp/pthread-ext/03_incdec-pthread.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-a20a710-m [2023-12-09 14:51:31,587 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-09 14:51:31,658 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 14:51:31,683 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-09 14:51:31,684 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-09 14:51:31,684 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-09 14:51:31,684 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-09 14:51:31,685 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-09 14:51:31,685 INFO L153 SettingsManager]: * Use SBE=true [2023-12-09 14:51:31,688 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-09 14:51:31,688 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-09 14:51:31,688 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-09 14:51:31,688 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-09 14:51:31,690 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-09 14:51:31,690 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-09 14:51:31,690 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-09 14:51:31,690 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-09 14:51:31,690 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-09 14:51:31,690 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-09 14:51:31,691 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-09 14:51:31,691 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-09 14:51:31,691 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-09 14:51:31,691 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-09 14:51:31,692 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-09 14:51:31,692 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-09 14:51:31,692 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 14:51:31,692 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-09 14:51:31,692 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-09 14:51:31,692 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-09 14:51:31,692 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-09 14:51:31,693 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-09 14:51:31,693 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-09 14:51:31,693 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-09 14:51:31,693 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-12-09 14:51:31,884 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-09 14:51:31,913 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-09 14:51:31,915 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-09 14:51:31,916 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-09 14:51:31,916 INFO L274 PluginConnector]: CDTParser initialized [2023-12-09 14:51:31,917 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/03_incdec-pthread.i [2023-12-09 14:51:32,995 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-09 14:51:33,218 INFO L384 CDTParser]: Found 1 translation units. [2023-12-09 14:51:33,219 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/03_incdec-pthread.i [2023-12-09 14:51:33,229 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23a6edfdd/8f03ae6ad9224788b1da4c415da73c6a/FLAG7d7726ab6 [2023-12-09 14:51:33,240 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23a6edfdd/8f03ae6ad9224788b1da4c415da73c6a [2023-12-09 14:51:33,242 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-09 14:51:33,243 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-09 14:51:33,244 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-09 14:51:33,244 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-09 14:51:33,248 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-09 14:51:33,249 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:51:33" (1/1) ... [2023-12-09 14:51:33,250 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46a35d09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:51:33, skipping insertion in model container [2023-12-09 14:51:33,251 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:51:33" (1/1) ... [2023-12-09 14:51:33,287 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-09 14:51:33,538 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/03_incdec-pthread.i[30745,30758] [2023-12-09 14:51:33,547 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/03_incdec-pthread.i[31120,31133] [2023-12-09 14:51:33,553 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 14:51:33,566 INFO L202 MainTranslator]: Completed pre-run [2023-12-09 14:51:33,602 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/03_incdec-pthread.i[30745,30758] [2023-12-09 14:51:33,603 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/03_incdec-pthread.i[31120,31133] [2023-12-09 14:51:33,605 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 14:51:33,632 INFO L206 MainTranslator]: Completed translation [2023-12-09 14:51:33,632 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:51:33 WrapperNode [2023-12-09 14:51:33,632 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-09 14:51:33,633 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-09 14:51:33,633 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-09 14:51:33,634 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-09 14:51:33,638 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:51:33" (1/1) ... [2023-12-09 14:51:33,649 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:51:33" (1/1) ... [2023-12-09 14:51:33,668 INFO L138 Inliner]: procedures = 165, calls = 28, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 99 [2023-12-09 14:51:33,668 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-09 14:51:33,669 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-09 14:51:33,670 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-09 14:51:33,670 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-09 14:51:33,675 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:51:33" (1/1) ... [2023-12-09 14:51:33,675 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:51:33" (1/1) ... [2023-12-09 14:51:33,678 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:51:33" (1/1) ... [2023-12-09 14:51:33,678 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:51:33" (1/1) ... [2023-12-09 14:51:33,692 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:51:33" (1/1) ... [2023-12-09 14:51:33,694 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:51:33" (1/1) ... [2023-12-09 14:51:33,695 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:51:33" (1/1) ... [2023-12-09 14:51:33,696 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:51:33" (1/1) ... [2023-12-09 14:51:33,697 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-09 14:51:33,698 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-09 14:51:33,698 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-09 14:51:33,698 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-09 14:51:33,699 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:51:33" (1/1) ... [2023-12-09 14:51:33,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 14:51:33,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 14:51:33,719 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 14:51:33,721 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 14:51:33,739 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-12-09 14:51:33,739 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-12-09 14:51:33,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-09 14:51:33,740 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-12-09 14:51:33,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-09 14:51:33,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-09 14:51:33,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-09 14:51:33,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-09 14:51:33,740 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-12-09 14:51:33,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-09 14:51:33,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-09 14:51:33,741 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 14:51:33,849 INFO L241 CfgBuilder]: Building ICFG [2023-12-09 14:51:33,850 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-09 14:51:34,006 INFO L282 CfgBuilder]: Performing block encoding [2023-12-09 14:51:34,084 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-09 14:51:34,084 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-09 14:51:34,085 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:51:34 BoogieIcfgContainer [2023-12-09 14:51:34,085 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-09 14:51:34,087 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-09 14:51:34,087 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-09 14:51:34,089 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-09 14:51:34,089 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 02:51:33" (1/3) ... [2023-12-09 14:51:34,089 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10d0c42e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:51:34, skipping insertion in model container [2023-12-09 14:51:34,089 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:51:33" (2/3) ... [2023-12-09 14:51:34,090 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10d0c42e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:51:34, skipping insertion in model container [2023-12-09 14:51:34,090 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:51:34" (3/3) ... [2023-12-09 14:51:34,090 INFO L112 eAbstractionObserver]: Analyzing ICFG 03_incdec-pthread.i [2023-12-09 14:51:34,105 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-09 14:51:34,106 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-09 14:51:34,106 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-09 14:51:34,178 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-12-09 14:51:34,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 96 places, 99 transitions, 202 flow [2023-12-09 14:51:34,260 INFO L124 PetriNetUnfolderBase]: 7/110 cut-off events. [2023-12-09 14:51:34,260 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-12-09 14:51:34,265 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 110 events. 7/110 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 201 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 78. Up to 4 conditions per place. [2023-12-09 14:51:34,265 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 99 transitions, 202 flow [2023-12-09 14:51:34,268 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 96 places, 99 transitions, 202 flow [2023-12-09 14:51:34,276 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 14:51:34,281 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;@e85ee56, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 14:51:34,282 INFO L363 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-12-09 14:51:34,299 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 14:51:34,299 INFO L124 PetriNetUnfolderBase]: 2/49 cut-off events. [2023-12-09 14:51:34,299 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-12-09 14:51:34,299 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:51:34,300 INFO L233 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:51:34,300 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-12-09 14:51:34,304 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:51:34,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1665345913, now seen corresponding path program 1 times [2023-12-09 14:51:34,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:51:34,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801347302] [2023-12-09 14:51:34,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:51:34,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:51:34,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-09 14:51:34,400 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-09 14:51:34,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-09 14:51:34,436 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-12-09 14:51:34,437 INFO L372 BasicCegarLoop]: Counterexample is feasible [2023-12-09 14:51:34,438 INFO L810 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining) [2023-12-09 14:51:34,439 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2023-12-09 14:51:34,439 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2023-12-09 14:51:34,439 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2023-12-09 14:51:34,440 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2023-12-09 14:51:34,440 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-09 14:51:34,440 INFO L457 BasicCegarLoop]: Path program histogram: [1] [2023-12-09 14:51:34,445 WARN L227 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-12-09 14:51:34,445 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-12-09 14:51:34,480 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-12-09 14:51:34,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 159 places, 165 transitions, 340 flow [2023-12-09 14:51:34,514 INFO L124 PetriNetUnfolderBase]: 13/189 cut-off events. [2023-12-09 14:51:34,514 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-12-09 14:51:34,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 197 conditions, 189 events. 13/189 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 608 event pairs, 0 based on Foata normal form. 0/169 useless extension candidates. Maximal degree in co-relation 143. Up to 6 conditions per place. [2023-12-09 14:51:34,521 INFO L82 GeneralOperation]: Start removeDead. Operand has 159 places, 165 transitions, 340 flow [2023-12-09 14:51:34,523 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 159 places, 165 transitions, 340 flow [2023-12-09 14:51:34,524 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 14:51:34,525 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;@e85ee56, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 14:51:34,525 INFO L363 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-12-09 14:51:34,543 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 14:51:34,543 INFO L124 PetriNetUnfolderBase]: 3/95 cut-off events. [2023-12-09 14:51:34,543 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-12-09 14:51:34,543 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:51:34,543 INFO L233 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 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 14:51:34,543 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-12-09 14:51:34,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:51:34,544 INFO L85 PathProgramCache]: Analyzing trace with hash -676165018, now seen corresponding path program 1 times [2023-12-09 14:51:34,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:51:34,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964563191] [2023-12-09 14:51:34,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:51:34,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:51:34,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-09 14:51:34,584 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-09 14:51:34,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-09 14:51:34,613 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-12-09 14:51:34,613 INFO L372 BasicCegarLoop]: Counterexample is feasible [2023-12-09 14:51:34,613 INFO L810 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2023-12-09 14:51:34,613 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2023-12-09 14:51:34,614 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2023-12-09 14:51:34,614 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 7 remaining) [2023-12-09 14:51:34,614 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (2 of 7 remaining) [2023-12-09 14:51:34,614 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2023-12-09 14:51:34,615 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2023-12-09 14:51:34,615 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-09 14:51:34,615 INFO L457 BasicCegarLoop]: Path program histogram: [1] [2023-12-09 14:51:34,616 WARN L227 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-12-09 14:51:34,616 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-12-09 14:51:34,694 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-12-09 14:51:34,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 222 places, 231 transitions, 480 flow [2023-12-09 14:51:34,760 INFO L124 PetriNetUnfolderBase]: 19/268 cut-off events. [2023-12-09 14:51:34,760 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-12-09 14:51:34,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 281 conditions, 268 events. 19/268 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1027 event pairs, 0 based on Foata normal form. 0/239 useless extension candidates. Maximal degree in co-relation 208. Up to 8 conditions per place. [2023-12-09 14:51:34,767 INFO L82 GeneralOperation]: Start removeDead. Operand has 222 places, 231 transitions, 480 flow [2023-12-09 14:51:34,772 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 222 places, 231 transitions, 480 flow [2023-12-09 14:51:34,775 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 14:51:34,778 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;@e85ee56, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 14:51:34,779 INFO L363 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-12-09 14:51:34,807 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 14:51:34,808 INFO L124 PetriNetUnfolderBase]: 5/158 cut-off events. [2023-12-09 14:51:34,808 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-12-09 14:51:34,808 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:51:34,808 INFO L233 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:51:34,808 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-12-09 14:51:34,809 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:51:34,809 INFO L85 PathProgramCache]: Analyzing trace with hash 852048306, now seen corresponding path program 1 times [2023-12-09 14:51:34,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:51:34,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834066278] [2023-12-09 14:51:34,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:51:34,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:51:34,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-09 14:51:34,835 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-09 14:51:34,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-09 14:51:34,872 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-12-09 14:51:34,872 INFO L372 BasicCegarLoop]: Counterexample is feasible [2023-12-09 14:51:34,872 INFO L810 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2023-12-09 14:51:34,873 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (7 of 9 remaining) [2023-12-09 14:51:34,873 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (6 of 9 remaining) [2023-12-09 14:51:34,873 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (5 of 9 remaining) [2023-12-09 14:51:34,873 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (4 of 9 remaining) [2023-12-09 14:51:34,873 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 9 remaining) [2023-12-09 14:51:34,873 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (2 of 9 remaining) [2023-12-09 14:51:34,873 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 9 remaining) [2023-12-09 14:51:34,873 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (0 of 9 remaining) [2023-12-09 14:51:34,874 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-09 14:51:34,874 INFO L457 BasicCegarLoop]: Path program histogram: [1] [2023-12-09 14:51:34,874 WARN L227 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-12-09 14:51:34,874 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-12-09 14:51:34,916 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-12-09 14:51:34,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 285 places, 297 transitions, 622 flow [2023-12-09 14:51:34,970 INFO L124 PetriNetUnfolderBase]: 25/347 cut-off events. [2023-12-09 14:51:34,970 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-12-09 14:51:34,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 366 conditions, 347 events. 25/347 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1478 event pairs, 0 based on Foata normal form. 0/309 useless extension candidates. Maximal degree in co-relation 276. Up to 10 conditions per place. [2023-12-09 14:51:34,974 INFO L82 GeneralOperation]: Start removeDead. Operand has 285 places, 297 transitions, 622 flow [2023-12-09 14:51:34,977 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 285 places, 297 transitions, 622 flow [2023-12-09 14:51:34,979 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 14:51:34,982 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;@e85ee56, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 14:51:34,982 INFO L363 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-12-09 14:51:34,998 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 14:51:34,998 INFO L124 PetriNetUnfolderBase]: 5/157 cut-off events. [2023-12-09 14:51:34,998 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2023-12-09 14:51:34,999 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:51:34,999 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] [2023-12-09 14:51:34,999 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-12-09 14:51:35,000 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:51:35,000 INFO L85 PathProgramCache]: Analyzing trace with hash -526957674, now seen corresponding path program 1 times [2023-12-09 14:51:35,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:51:35,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771888192] [2023-12-09 14:51:35,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:51:35,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:51:35,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:51:35,246 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 14:51:35,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:51:35,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771888192] [2023-12-09 14:51:35,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771888192] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:51:35,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:51:35,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-09 14:51:35,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200476067] [2023-12-09 14:51:35,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:51:35,254 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-09 14:51:35,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:51:35,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-09 14:51:35,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-09 14:51:35,300 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 297 [2023-12-09 14:51:35,303 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 297 transitions, 622 flow. Second operand has 3 states, 3 states have (on average 189.0) internal successors, (567), 3 states have internal predecessors, (567), 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 14:51:35,303 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:51:35,303 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 297 [2023-12-09 14:51:35,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand