/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-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-a20a710-m [2023-12-09 14:57:16,863 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-09 14:57:16,931 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 14:57:16,955 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-09 14:57:16,956 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-09 14:57:16,956 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-09 14:57:16,957 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-09 14:57:16,957 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-09 14:57:16,957 INFO L153 SettingsManager]: * Use SBE=true [2023-12-09 14:57:16,960 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-09 14:57:16,961 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-09 14:57:16,961 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-09 14:57:16,961 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-09 14:57:16,962 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-09 14:57:16,962 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-09 14:57:16,962 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-09 14:57:16,962 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-09 14:57:16,962 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-09 14:57:16,963 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-09 14:57:16,963 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-09 14:57:16,963 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-09 14:57:16,963 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-09 14:57:16,964 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-09 14:57:16,964 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-09 14:57:16,964 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-09 14:57:16,965 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 14:57:16,965 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-09 14:57:16,965 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-09 14:57:16,965 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-09 14:57:16,965 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-09 14:57:16,966 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-09 14:57:16,966 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-09 14:57:16,966 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-09 14:57:16,966 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-12-09 14:57:17,150 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-09 14:57:17,168 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-09 14:57:17,170 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-09 14:57:17,171 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-09 14:57:17,172 INFO L274 PluginConnector]: CDTParser initialized [2023-12-09 14:57:17,173 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-12-09 14:57:18,212 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-09 14:57:18,469 INFO L384 CDTParser]: Found 1 translation units. [2023-12-09 14:57:18,469 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-12-09 14:57:18,478 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbdaa7c19/324c685f8340419c8cc9be1045fe4eee/FLAG0cf695dc2 [2023-12-09 14:57:18,489 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbdaa7c19/324c685f8340419c8cc9be1045fe4eee [2023-12-09 14:57:18,490 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-09 14:57:18,491 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-09 14:57:18,492 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-09 14:57:18,492 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-09 14:57:18,495 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-09 14:57:18,495 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:57:18" (1/1) ... [2023-12-09 14:57:18,496 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31ae5cf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:18, skipping insertion in model container [2023-12-09 14:57:18,496 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:57:18" (1/1) ... [2023-12-09 14:57:18,526 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-09 14:57:18,629 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-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2023-12-09 14:57:18,772 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 14:57:18,781 INFO L202 MainTranslator]: Completed pre-run [2023-12-09 14:57:18,794 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-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2023-12-09 14:57:18,830 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 14:57:18,855 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-12-09 14:57:18,855 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-12-09 14:57:18,860 INFO L206 MainTranslator]: Completed translation [2023-12-09 14:57:18,861 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:18 WrapperNode [2023-12-09 14:57:18,861 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-09 14:57:18,862 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-09 14:57:18,862 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-09 14:57:18,862 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-09 14:57:18,866 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:18" (1/1) ... [2023-12-09 14:57:18,896 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:18" (1/1) ... [2023-12-09 14:57:18,920 INFO L138 Inliner]: procedures = 177, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 81 [2023-12-09 14:57:18,920 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-09 14:57:18,921 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-09 14:57:18,921 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-09 14:57:18,921 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-09 14:57:18,927 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:18" (1/1) ... [2023-12-09 14:57:18,927 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:18" (1/1) ... [2023-12-09 14:57:18,942 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:18" (1/1) ... [2023-12-09 14:57:18,942 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:18" (1/1) ... [2023-12-09 14:57:18,946 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:18" (1/1) ... [2023-12-09 14:57:18,947 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:18" (1/1) ... [2023-12-09 14:57:18,948 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:18" (1/1) ... [2023-12-09 14:57:18,949 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:18" (1/1) ... [2023-12-09 14:57:18,950 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-09 14:57:18,951 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-09 14:57:18,951 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-09 14:57:18,951 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-09 14:57:18,952 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:18" (1/1) ... [2023-12-09 14:57:18,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 14:57:18,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 14:57:18,986 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 14:57:19,007 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 14:57:19,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-09 14:57:19,012 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-12-09 14:57:19,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-09 14:57:19,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-09 14:57:19,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-09 14:57:19,013 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-12-09 14:57:19,013 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-12-09 14:57:19,013 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-12-09 14:57:19,014 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-12-09 14:57:19,014 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-12-09 14:57:19,014 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-12-09 14:57:19,014 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-12-09 14:57:19,014 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-12-09 14:57:19,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-09 14:57:19,014 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-12-09 14:57:19,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-09 14:57:19,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-09 14:57:19,016 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 14:57:19,122 INFO L241 CfgBuilder]: Building ICFG [2023-12-09 14:57:19,130 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-09 14:57:19,258 INFO L282 CfgBuilder]: Performing block encoding [2023-12-09 14:57:19,265 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-09 14:57:19,265 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-09 14:57:19,266 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:57:19 BoogieIcfgContainer [2023-12-09 14:57:19,266 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-09 14:57:19,268 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-09 14:57:19,268 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-09 14:57:19,270 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-09 14:57:19,270 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 02:57:18" (1/3) ... [2023-12-09 14:57:19,271 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e7f84bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:57:19, skipping insertion in model container [2023-12-09 14:57:19,271 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:18" (2/3) ... [2023-12-09 14:57:19,271 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e7f84bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:57:19, skipping insertion in model container [2023-12-09 14:57:19,271 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:57:19" (3/3) ... [2023-12-09 14:57:19,272 INFO L112 eAbstractionObserver]: Analyzing ICFG safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-12-09 14:57:19,283 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-09 14:57:19,283 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-09 14:57:19,284 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-09 14:57:19,349 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-12-09 14:57:19,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 118 places, 107 transitions, 230 flow [2023-12-09 14:57:19,434 INFO L124 PetriNetUnfolderBase]: 2/103 cut-off events. [2023-12-09 14:57:19,434 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-12-09 14:57:19,439 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116 conditions, 103 events. 2/103 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 88. Up to 2 conditions per place. [2023-12-09 14:57:19,439 INFO L82 GeneralOperation]: Start removeDead. Operand has 118 places, 107 transitions, 230 flow [2023-12-09 14:57:19,444 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 98 places, 86 transitions, 184 flow [2023-12-09 14:57:19,453 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 14:57:19,457 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;@401578eb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 14:57:19,458 INFO L363 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-12-09 14:57:19,478 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 14:57:19,479 INFO L124 PetriNetUnfolderBase]: 1/85 cut-off events. [2023-12-09 14:57:19,479 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-12-09 14:57:19,479 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:19,483 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] [2023-12-09 14:57:19,483 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-12-09 14:57:19,487 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:19,487 INFO L85 PathProgramCache]: Analyzing trace with hash 2064608472, now seen corresponding path program 1 times [2023-12-09 14:57:19,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:19,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250764387] [2023-12-09 14:57:19,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:19,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:19,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:20,013 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 14:57:20,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:20,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250764387] [2023-12-09 14:57:20,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250764387] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:20,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:20,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 14:57:20,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980031662] [2023-12-09 14:57:20,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:20,024 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 14:57:20,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:20,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 14:57:20,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-09 14:57:20,052 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 107 [2023-12-09 14:57:20,054 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 86 transitions, 184 flow. Second operand has 7 states, 7 states have (on average 84.0) internal successors, (588), 7 states have internal predecessors, (588), 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 14:57:20,055 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:20,055 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 107 [2023-12-09 14:57:20,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:20,428 INFO L124 PetriNetUnfolderBase]: 293/819 cut-off events. [2023-12-09 14:57:20,429 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2023-12-09 14:57:20,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1376 conditions, 819 events. 293/819 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 4712 event pairs, 8 based on Foata normal form. 33/822 useless extension candidates. Maximal degree in co-relation 1341. Up to 190 conditions per place. [2023-12-09 14:57:20,440 INFO L140 encePairwiseOnDemand]: 94/107 looper letters, 23 selfloop transitions, 8 changer transitions 44/141 dead transitions. [2023-12-09 14:57:20,440 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 141 transitions, 450 flow [2023-12-09 14:57:20,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-09 14:57:20,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-12-09 14:57:20,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1147 transitions. [2023-12-09 14:57:20,455 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8245866283249461 [2023-12-09 14:57:20,456 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1147 transitions. [2023-12-09 14:57:20,456 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1147 transitions. [2023-12-09 14:57:20,458 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:20,460 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1147 transitions. [2023-12-09 14:57:20,466 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 88.23076923076923) internal successors, (1147), 13 states have internal predecessors, (1147), 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 14:57:20,471 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 107.0) internal successors, (1498), 14 states have internal predecessors, (1498), 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 14:57:20,471 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 107.0) internal successors, (1498), 14 states have internal predecessors, (1498), 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 14:57:20,474 INFO L308 CegarLoopForPetriNet]: 98 programPoint places, 12 predicate places. [2023-12-09 14:57:20,474 INFO L500 AbstractCegarLoop]: Abstraction has has 110 places, 141 transitions, 450 flow [2023-12-09 14:57:20,474 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 84.0) internal successors, (588), 7 states have internal predecessors, (588), 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 14:57:20,474 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:20,474 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] [2023-12-09 14:57:20,475 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-09 14:57:20,475 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-12-09 14:57:20,475 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:20,476 INFO L85 PathProgramCache]: Analyzing trace with hash -455867957, now seen corresponding path program 1 times [2023-12-09 14:57:20,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:20,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422449928] [2023-12-09 14:57:20,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:20,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:20,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:20,711 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 14:57:20,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:20,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422449928] [2023-12-09 14:57:20,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422449928] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:20,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:20,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 14:57:20,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947463074] [2023-12-09 14:57:20,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:20,713 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 14:57:20,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:20,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 14:57:20,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-09 14:57:20,728 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 107 [2023-12-09 14:57:20,729 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 141 transitions, 450 flow. Second operand has 7 states, 7 states have (on average 84.14285714285714) internal successors, (589), 7 states have internal predecessors, (589), 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 14:57:20,729 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:20,729 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 107 [2023-12-09 14:57:20,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:21,009 INFO L124 PetriNetUnfolderBase]: 409/1263 cut-off events. [2023-12-09 14:57:21,009 INFO L125 PetriNetUnfolderBase]: For 90/276 co-relation queries the response was YES. [2023-12-09 14:57:21,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2774 conditions, 1263 events. 409/1263 cut-off events. For 90/276 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 9120 event pairs, 10 based on Foata normal form. 31/1272 useless extension candidates. Maximal degree in co-relation 2732. Up to 260 conditions per place. [2023-12-09 14:57:21,017 INFO L140 encePairwiseOnDemand]: 98/107 looper letters, 34 selfloop transitions, 7 changer transitions 146/253 dead transitions. [2023-12-09 14:57:21,018 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 253 transitions, 1287 flow [2023-12-09 14:57:21,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-09 14:57:21,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-12-09 14:57:21,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1142 transitions. [2023-12-09 14:57:21,020 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8209920920201293 [2023-12-09 14:57:21,020 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1142 transitions. [2023-12-09 14:57:21,020 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1142 transitions. [2023-12-09 14:57:21,021 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:21,021 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1142 transitions. [2023-12-09 14:57:21,023 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 87.84615384615384) internal successors, (1142), 13 states have internal predecessors, (1142), 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 14:57:21,025 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 107.0) internal successors, (1498), 14 states have internal predecessors, (1498), 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 14:57:21,025 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 107.0) internal successors, (1498), 14 states have internal predecessors, (1498), 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 14:57:21,026 INFO L308 CegarLoopForPetriNet]: 98 programPoint places, 24 predicate places. [2023-12-09 14:57:21,026 INFO L500 AbstractCegarLoop]: Abstraction has has 122 places, 253 transitions, 1287 flow [2023-12-09 14:57:21,027 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 84.14285714285714) internal successors, (589), 7 states have internal predecessors, (589), 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 14:57:21,028 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:21,028 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] [2023-12-09 14:57:21,028 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-09 14:57:21,028 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-12-09 14:57:21,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:21,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1010623178, now seen corresponding path program 1 times [2023-12-09 14:57:21,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:21,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224031523] [2023-12-09 14:57:21,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:21,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:21,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:21,288 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 14:57:21,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:21,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224031523] [2023-12-09 14:57:21,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224031523] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:21,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:21,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-09 14:57:21,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657457134] [2023-12-09 14:57:21,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:21,291 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-09 14:57:21,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:21,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-09 14:57:21,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-09 14:57:21,299 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 107 [2023-12-09 14:57:21,299 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 253 transitions, 1287 flow. Second operand has 8 states, 8 states have (on average 84.0) internal successors, (672), 8 states have internal predecessors, (672), 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 14:57:21,300 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:21,300 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 107 [2023-12-09 14:57:21,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:21,729 INFO L124 PetriNetUnfolderBase]: 492/1637 cut-off events. [2023-12-09 14:57:21,729 INFO L125 PetriNetUnfolderBase]: For 287/965 co-relation queries the response was YES. [2023-12-09 14:57:21,734 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4512 conditions, 1637 events. 492/1637 cut-off events. For 287/965 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 13302 event pairs, 31 based on Foata normal form. 49/1660 useless extension candidates. Maximal degree in co-relation 4463. Up to 333 conditions per place. [2023-12-09 14:57:21,738 INFO L140 encePairwiseOnDemand]: 97/107 looper letters, 27 selfloop transitions, 10 changer transitions 357/460 dead transitions. [2023-12-09 14:57:21,738 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 460 transitions, 3323 flow [2023-12-09 14:57:21,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-09 14:57:21,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-12-09 14:57:21,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1491 transitions. [2023-12-09 14:57:21,741 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8196811434854315 [2023-12-09 14:57:21,741 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1491 transitions. [2023-12-09 14:57:21,741 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1491 transitions. [2023-12-09 14:57:21,742 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:21,742 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1491 transitions. [2023-12-09 14:57:21,744 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 87.70588235294117) internal successors, (1491), 17 states have internal predecessors, (1491), 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 14:57:21,747 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 107.0) internal successors, (1926), 18 states have internal predecessors, (1926), 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 14:57:21,748 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 107.0) internal successors, (1926), 18 states have internal predecessors, (1926), 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 14:57:21,749 INFO L308 CegarLoopForPetriNet]: 98 programPoint places, 40 predicate places. [2023-12-09 14:57:21,750 INFO L500 AbstractCegarLoop]: Abstraction has has 138 places, 460 transitions, 3323 flow [2023-12-09 14:57:21,750 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 84.0) internal successors, (672), 8 states have internal predecessors, (672), 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 14:57:21,750 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:21,750 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] [2023-12-09 14:57:21,750 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-09 14:57:21,750 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-12-09 14:57:21,751 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:21,751 INFO L85 PathProgramCache]: Analyzing trace with hash -606945381, now seen corresponding path program 1 times [2023-12-09 14:57:21,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:21,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775397657] [2023-12-09 14:57:21,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:21,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:21,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:21,918 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 14:57:21,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:21,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775397657] [2023-12-09 14:57:21,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775397657] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:21,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:21,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 14:57:21,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719167010] [2023-12-09 14:57:21,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:21,922 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 14:57:21,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:21,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 14:57:21,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-09 14:57:21,925 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 107 [2023-12-09 14:57:21,925 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 460 transitions, 3323 flow. Second operand has 7 states, 7 states have (on average 84.42857142857143) internal successors, (591), 7 states have internal predecessors, (591), 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 14:57:21,925 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:21,925 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 107 [2023-12-09 14:57:21,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:22,352 INFO L124 PetriNetUnfolderBase]: 535/1932 cut-off events. [2023-12-09 14:57:22,352 INFO L125 PetriNetUnfolderBase]: For 623/2949 co-relation queries the response was YES. [2023-12-09 14:57:22,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6363 conditions, 1932 events. 535/1932 cut-off events. For 623/2949 co-relation queries the response was YES. Maximal size of possible extension queue 214. Compared 17481 event pairs, 8 based on Foata normal form. 67/1970 useless extension candidates. Maximal degree in co-relation 6307. Up to 426 conditions per place. [2023-12-09 14:57:22,362 INFO L140 encePairwiseOnDemand]: 96/107 looper letters, 32 selfloop transitions, 9 changer transitions 465/572 dead transitions. [2023-12-09 14:57:22,362 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 572 transitions, 5231 flow [2023-12-09 14:57:22,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-09 14:57:22,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-12-09 14:57:22,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1145 transitions. [2023-12-09 14:57:22,364 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8231488138030194 [2023-12-09 14:57:22,365 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1145 transitions. [2023-12-09 14:57:22,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1145 transitions. [2023-12-09 14:57:22,365 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:22,365 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1145 transitions. [2023-12-09 14:57:22,367 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 88.07692307692308) internal successors, (1145), 13 states have internal predecessors, (1145), 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 14:57:22,369 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 107.0) internal successors, (1498), 14 states have internal predecessors, (1498), 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 14:57:22,370 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 107.0) internal successors, (1498), 14 states have internal predecessors, (1498), 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 14:57:22,372 INFO L308 CegarLoopForPetriNet]: 98 programPoint places, 52 predicate places. [2023-12-09 14:57:22,372 INFO L500 AbstractCegarLoop]: Abstraction has has 150 places, 572 transitions, 5231 flow [2023-12-09 14:57:22,373 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 84.42857142857143) internal successors, (591), 7 states have internal predecessors, (591), 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 14:57:22,373 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:22,373 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] [2023-12-09 14:57:22,374 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-09 14:57:22,374 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-12-09 14:57:22,375 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:22,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1002828087, now seen corresponding path program 1 times [2023-12-09 14:57:22,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:22,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843163509] [2023-12-09 14:57:22,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:22,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:22,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:22,515 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 14:57:22,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:22,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843163509] [2023-12-09 14:57:22,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843163509] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:22,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:22,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 14:57:22,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047895173] [2023-12-09 14:57:22,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:22,516 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 14:57:22,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:22,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 14:57:22,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-09 14:57:22,518 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 107 [2023-12-09 14:57:22,519 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 572 transitions, 5231 flow. Second operand has 7 states, 7 states have (on average 87.85714285714286) internal successors, (615), 7 states have internal predecessors, (615), 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 14:57:22,519 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:22,519 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 107 [2023-12-09 14:57:22,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:23,232 INFO L124 PetriNetUnfolderBase]: 1860/5578 cut-off events. [2023-12-09 14:57:23,232 INFO L125 PetriNetUnfolderBase]: For 4436/12254 co-relation queries the response was YES. [2023-12-09 14:57:23,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20552 conditions, 5578 events. 1860/5578 cut-off events. For 4436/12254 co-relation queries the response was YES. Maximal size of possible extension queue 637. Compared 59839 event pairs, 8 based on Foata normal form. 102/5621 useless extension candidates. Maximal degree in co-relation 20491. Up to 1119 conditions per place. [2023-12-09 14:57:23,258 INFO L140 encePairwiseOnDemand]: 99/107 looper letters, 31 selfloop transitions, 6 changer transitions 1061/1176 dead transitions. [2023-12-09 14:57:23,258 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 1176 transitions, 13171 flow [2023-12-09 14:57:23,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-09 14:57:23,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-12-09 14:57:23,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1170 transitions. [2023-12-09 14:57:23,260 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8411214953271028 [2023-12-09 14:57:23,260 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1170 transitions. [2023-12-09 14:57:23,261 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1170 transitions. [2023-12-09 14:57:23,261 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:23,261 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1170 transitions. [2023-12-09 14:57:23,263 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 90.0) internal successors, (1170), 13 states have internal predecessors, (1170), 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 14:57:23,265 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 107.0) internal successors, (1498), 14 states have internal predecessors, (1498), 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 14:57:23,265 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 107.0) internal successors, (1498), 14 states have internal predecessors, (1498), 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 14:57:23,266 INFO L308 CegarLoopForPetriNet]: 98 programPoint places, 64 predicate places. [2023-12-09 14:57:23,266 INFO L500 AbstractCegarLoop]: Abstraction has has 162 places, 1176 transitions, 13171 flow [2023-12-09 14:57:23,266 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 87.85714285714286) internal successors, (615), 7 states have internal predecessors, (615), 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 14:57:23,266 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:23,266 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] [2023-12-09 14:57:23,267 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-09 14:57:23,267 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-12-09 14:57:23,267 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:23,267 INFO L85 PathProgramCache]: Analyzing trace with hash -268142372, now seen corresponding path program 1 times [2023-12-09 14:57:23,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:23,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826263151] [2023-12-09 14:57:23,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:23,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:23,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:23,376 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 14:57:23,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:23,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826263151] [2023-12-09 14:57:23,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826263151] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:23,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:23,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-09 14:57:23,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141347412] [2023-12-09 14:57:23,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:23,377 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-09 14:57:23,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:23,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-09 14:57:23,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-09 14:57:23,379 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 107 [2023-12-09 14:57:23,379 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 1176 transitions, 13171 flow. Second operand has 6 states, 6 states have (on average 88.16666666666667) internal successors, (529), 6 states have internal predecessors, (529), 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 14:57:23,379 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:23,379 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 107 [2023-12-09 14:57:23,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:27,003 INFO L124 PetriNetUnfolderBase]: 11927/25688 cut-off events. [2023-12-09 14:57:27,004 INFO L125 PetriNetUnfolderBase]: For 16440/28191 co-relation queries the response was YES. [2023-12-09 14:57:27,133 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74537 conditions, 25688 events. 11927/25688 cut-off events. For 16440/28191 co-relation queries the response was YES. Maximal size of possible extension queue 1864. Compared 294294 event pairs, 530 based on Foata normal form. 175/24052 useless extension candidates. Maximal degree in co-relation 74472. Up to 7798 conditions per place. [2023-12-09 14:57:27,182 INFO L140 encePairwiseOnDemand]: 96/107 looper letters, 55 selfloop transitions, 20 changer transitions 681/1142 dead transitions. [2023-12-09 14:57:27,182 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 1142 transitions, 12673 flow [2023-12-09 14:57:27,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-09 14:57:27,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-12-09 14:57:27,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 920 transitions. [2023-12-09 14:57:27,198 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8598130841121495 [2023-12-09 14:57:27,198 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 920 transitions. [2023-12-09 14:57:27,198 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 920 transitions. [2023-12-09 14:57:27,198 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:27,199 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 920 transitions. [2023-12-09 14:57:27,200 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 92.0) internal successors, (920), 10 states have internal predecessors, (920), 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 14:57:27,201 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 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 14:57:27,202 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 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 14:57:27,202 INFO L308 CegarLoopForPetriNet]: 98 programPoint places, 73 predicate places. [2023-12-09 14:57:27,202 INFO L500 AbstractCegarLoop]: Abstraction has has 171 places, 1142 transitions, 12673 flow [2023-12-09 14:57:27,202 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 88.16666666666667) internal successors, (529), 6 states have internal predecessors, (529), 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 14:57:27,203 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:27,203 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] [2023-12-09 14:57:27,203 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-09 14:57:27,203 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-12-09 14:57:27,203 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:27,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1168921307, now seen corresponding path program 1 times [2023-12-09 14:57:27,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:27,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858473222] [2023-12-09 14:57:27,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:27,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:27,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:27,331 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 14:57:27,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:27,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858473222] [2023-12-09 14:57:27,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858473222] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:27,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:27,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 14:57:27,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255073015] [2023-12-09 14:57:27,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:27,332 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 14:57:27,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:27,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 14:57:27,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-09 14:57:27,333 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 107 [2023-12-09 14:57:27,334 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 1142 transitions, 12673 flow. Second operand has 7 states, 7 states have (on average 88.0) internal successors, (616), 7 states have internal predecessors, (616), 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 14:57:27,334 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:27,334 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 107 [2023-12-09 14:57:27,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:29,966 INFO L124 PetriNetUnfolderBase]: 8767/19877 cut-off events. [2023-12-09 14:57:29,966 INFO L125 PetriNetUnfolderBase]: For 12623/19590 co-relation queries the response was YES. [2023-12-09 14:57:30,061 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60880 conditions, 19877 events. 8767/19877 cut-off events. For 12623/19590 co-relation queries the response was YES. Maximal size of possible extension queue 1907. Compared 227179 event pairs, 113 based on Foata normal form. 847/19624 useless extension candidates. Maximal degree in co-relation 60811. Up to 6708 conditions per place. [2023-12-09 14:57:30,096 INFO L140 encePairwiseOnDemand]: 96/107 looper letters, 70 selfloop transitions, 54 changer transitions 549/827 dead transitions. [2023-12-09 14:57:30,097 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 827 transitions, 9008 flow [2023-12-09 14:57:30,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-09 14:57:30,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-12-09 14:57:30,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1197 transitions. [2023-12-09 14:57:30,099 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8605319913731129 [2023-12-09 14:57:30,099 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1197 transitions. [2023-12-09 14:57:30,099 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1197 transitions. [2023-12-09 14:57:30,100 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:30,100 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1197 transitions. [2023-12-09 14:57:30,102 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 92.07692307692308) internal successors, (1197), 13 states have internal predecessors, (1197), 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 14:57:30,103 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 107.0) internal successors, (1498), 14 states have internal predecessors, (1498), 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 14:57:30,104 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 107.0) internal successors, (1498), 14 states have internal predecessors, (1498), 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 14:57:30,105 INFO L308 CegarLoopForPetriNet]: 98 programPoint places, 82 predicate places. [2023-12-09 14:57:30,105 INFO L500 AbstractCegarLoop]: Abstraction has has 180 places, 827 transitions, 9008 flow [2023-12-09 14:57:30,105 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 88.0) internal successors, (616), 7 states have internal predecessors, (616), 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 14:57:30,105 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:30,106 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] [2023-12-09 14:57:30,106 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-09 14:57:30,106 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-12-09 14:57:30,106 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:30,106 INFO L85 PathProgramCache]: Analyzing trace with hash -757274114, now seen corresponding path program 1 times [2023-12-09 14:57:30,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:30,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928157050] [2023-12-09 14:57:30,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:30,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:30,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:30,237 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 14:57:30,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:30,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928157050] [2023-12-09 14:57:30,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928157050] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:30,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:30,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-09 14:57:30,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736072515] [2023-12-09 14:57:30,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:30,238 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-09 14:57:30,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:30,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-09 14:57:30,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-09 14:57:30,240 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 107 [2023-12-09 14:57:30,240 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 827 transitions, 9008 flow. Second operand has 8 states, 8 states have (on average 87.875) internal successors, (703), 8 states have internal predecessors, (703), 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 14:57:30,240 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:30,241 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 107 [2023-12-09 14:57:30,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:32,460 INFO L124 PetriNetUnfolderBase]: 7342/16777 cut-off events. [2023-12-09 14:57:32,461 INFO L125 PetriNetUnfolderBase]: For 14649/24210 co-relation queries the response was YES. [2023-12-09 14:57:32,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58206 conditions, 16777 events. 7342/16777 cut-off events. For 14649/24210 co-relation queries the response was YES. Maximal size of possible extension queue 1962. Compared 191798 event pairs, 6 based on Foata normal form. 889/16819 useless extension candidates. Maximal degree in co-relation 58133. Up to 5687 conditions per place. [2023-12-09 14:57:32,535 INFO L140 encePairwiseOnDemand]: 96/107 looper letters, 52 selfloop transitions, 106 changer transitions 352/598 dead transitions. [2023-12-09 14:57:32,535 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 598 transitions, 6472 flow [2023-12-09 14:57:32,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-09 14:57:32,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-12-09 14:57:32,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1473 transitions. [2023-12-09 14:57:32,538 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8603971962616822 [2023-12-09 14:57:32,538 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1473 transitions. [2023-12-09 14:57:32,538 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1473 transitions. [2023-12-09 14:57:32,539 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:32,539 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1473 transitions. [2023-12-09 14:57:32,542 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 92.0625) internal successors, (1473), 16 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 14:57:32,545 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 107.0) internal successors, (1819), 17 states have internal predecessors, (1819), 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 14:57:32,545 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 107.0) internal successors, (1819), 17 states have internal predecessors, (1819), 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 14:57:32,546 INFO L308 CegarLoopForPetriNet]: 98 programPoint places, 94 predicate places. [2023-12-09 14:57:32,546 INFO L500 AbstractCegarLoop]: Abstraction has has 192 places, 598 transitions, 6472 flow [2023-12-09 14:57:32,546 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 87.875) internal successors, (703), 8 states have internal predecessors, (703), 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 14:57:32,546 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:32,546 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] [2023-12-09 14:57:32,546 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-09 14:57:32,547 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-12-09 14:57:32,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:32,547 INFO L85 PathProgramCache]: Analyzing trace with hash -254413947, now seen corresponding path program 1 times [2023-12-09 14:57:32,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:32,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409417815] [2023-12-09 14:57:32,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:32,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:32,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:32,673 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 14:57:32,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:32,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409417815] [2023-12-09 14:57:32,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409417815] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:32,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:32,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 14:57:32,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873265868] [2023-12-09 14:57:32,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:32,675 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 14:57:32,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:32,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 14:57:32,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-09 14:57:32,676 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 107 [2023-12-09 14:57:32,676 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 598 transitions, 6472 flow. Second operand has 7 states, 7 states have (on average 82.85714285714286) internal successors, (580), 7 states have internal predecessors, (580), 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 14:57:32,677 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:32,677 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 107 [2023-12-09 14:57:32,677 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:34,992 INFO L124 PetriNetUnfolderBase]: 9963/22279 cut-off events. [2023-12-09 14:57:34,992 INFO L125 PetriNetUnfolderBase]: For 19834/29249 co-relation queries the response was YES. [2023-12-09 14:57:35,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79543 conditions, 22279 events. 9963/22279 cut-off events. For 19834/29249 co-relation queries the response was YES. Maximal size of possible extension queue 2590. Compared 263153 event pairs, 4 based on Foata normal form. 407/21419 useless extension candidates. Maximal degree in co-relation 79462. Up to 7880 conditions per place. [2023-12-09 14:57:35,118 INFO L140 encePairwiseOnDemand]: 94/107 looper letters, 49 selfloop transitions, 19 changer transitions 515/774 dead transitions. [2023-12-09 14:57:35,118 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 774 transitions, 9751 flow [2023-12-09 14:57:35,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-09 14:57:35,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-12-09 14:57:35,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1207 transitions. [2023-12-09 14:57:35,121 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8057409879839786 [2023-12-09 14:57:35,121 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1207 transitions. [2023-12-09 14:57:35,121 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1207 transitions. [2023-12-09 14:57:35,121 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:35,121 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1207 transitions. [2023-12-09 14:57:35,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 86.21428571428571) internal successors, (1207), 14 states have internal predecessors, (1207), 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 14:57:35,125 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 107.0) internal successors, (1605), 15 states have internal predecessors, (1605), 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 14:57:35,125 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 107.0) internal successors, (1605), 15 states have internal predecessors, (1605), 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 14:57:35,126 INFO L308 CegarLoopForPetriNet]: 98 programPoint places, 107 predicate places. [2023-12-09 14:57:35,126 INFO L500 AbstractCegarLoop]: Abstraction has has 205 places, 774 transitions, 9751 flow [2023-12-09 14:57:35,126 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 82.85714285714286) internal successors, (580), 7 states have internal predecessors, (580), 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 14:57:35,126 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:35,126 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] [2023-12-09 14:57:35,126 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-09 14:57:35,126 INFO L425 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-12-09 14:57:35,127 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:35,127 INFO L85 PathProgramCache]: Analyzing trace with hash -521576763, now seen corresponding path program 2 times [2023-12-09 14:57:35,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:35,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090368077] [2023-12-09 14:57:35,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:35,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:35,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:35,261 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 14:57:35,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:35,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090368077] [2023-12-09 14:57:35,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090368077] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:35,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:35,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-09 14:57:35,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511358353] [2023-12-09 14:57:35,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:35,264 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-09 14:57:35,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:35,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-09 14:57:35,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-09 14:57:35,266 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 107 [2023-12-09 14:57:35,267 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 774 transitions, 9751 flow. Second operand has 8 states, 8 states have (on average 82.5) internal successors, (660), 8 states have internal predecessors, (660), 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 14:57:35,267 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:35,267 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 107 [2023-12-09 14:57:35,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:38,237 INFO L124 PetriNetUnfolderBase]: 12433/28020 cut-off events. [2023-12-09 14:57:38,237 INFO L125 PetriNetUnfolderBase]: For 25767/40034 co-relation queries the response was YES. [2023-12-09 14:57:38,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100570 conditions, 28020 events. 12433/28020 cut-off events. For 25767/40034 co-relation queries the response was YES. Maximal size of possible extension queue 3280. Compared 343429 event pairs, 3 based on Foata normal form. 857/27505 useless extension candidates. Maximal degree in co-relation 100481. Up to 10001 conditions per place. [2023-12-09 14:57:38,394 INFO L140 encePairwiseOnDemand]: 94/107 looper letters, 49 selfloop transitions, 18 changer transitions 611/863 dead transitions. [2023-12-09 14:57:38,394 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 863 transitions, 12318 flow [2023-12-09 14:57:38,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-09 14:57:38,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-12-09 14:57:38,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1539 transitions. [2023-12-09 14:57:38,397 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7990654205607477 [2023-12-09 14:57:38,397 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1539 transitions. [2023-12-09 14:57:38,397 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1539 transitions. [2023-12-09 14:57:38,397 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:38,397 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1539 transitions. [2023-12-09 14:57:38,399 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 85.5) internal successors, (1539), 18 states have internal predecessors, (1539), 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 14:57:38,401 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 107.0) internal successors, (2033), 19 states have internal predecessors, (2033), 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 14:57:38,401 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 107.0) internal successors, (2033), 19 states have internal predecessors, (2033), 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 14:57:38,402 INFO L308 CegarLoopForPetriNet]: 98 programPoint places, 124 predicate places. [2023-12-09 14:57:38,402 INFO L500 AbstractCegarLoop]: Abstraction has has 222 places, 863 transitions, 12318 flow [2023-12-09 14:57:38,402 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 82.5) internal successors, (660), 8 states have internal predecessors, (660), 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 14:57:38,402 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:38,402 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] [2023-12-09 14:57:38,402 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-09 14:57:38,403 INFO L425 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-12-09 14:57:38,403 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:38,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1654285533, now seen corresponding path program 3 times [2023-12-09 14:57:38,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:38,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732979344] [2023-12-09 14:57:38,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:38,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:38,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:38,504 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 14:57:38,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:38,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732979344] [2023-12-09 14:57:38,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732979344] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:38,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:38,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-09 14:57:38,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091715941] [2023-12-09 14:57:38,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:38,505 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-09 14:57:38,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:38,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-09 14:57:38,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-09 14:57:38,506 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 107 [2023-12-09 14:57:38,506 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 863 transitions, 12318 flow. Second operand has 9 states, 9 states have (on average 87.77777777777777) internal successors, (790), 9 states have internal predecessors, (790), 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 14:57:38,507 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:38,507 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 107 [2023-12-09 14:57:38,507 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:41,925 INFO L124 PetriNetUnfolderBase]: 12251/25739 cut-off events. [2023-12-09 14:57:41,925 INFO L125 PetriNetUnfolderBase]: For 26729/49317 co-relation queries the response was YES. [2023-12-09 14:57:42,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110361 conditions, 25739 events. 12251/25739 cut-off events. For 26729/49317 co-relation queries the response was YES. Maximal size of possible extension queue 3242. Compared 305116 event pairs, 2 based on Foata normal form. 1664/25713 useless extension candidates. Maximal degree in co-relation 110268. Up to 9610 conditions per place. [2023-12-09 14:57:42,088 INFO L140 encePairwiseOnDemand]: 96/107 looper letters, 0 selfloop transitions, 0 changer transitions 565/565 dead transitions. [2023-12-09 14:57:42,088 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 565 transitions, 8132 flow [2023-12-09 14:57:42,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-09 14:57:42,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-12-09 14:57:42,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1728 transitions. [2023-12-09 14:57:42,094 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8499754058042303 [2023-12-09 14:57:42,094 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1728 transitions. [2023-12-09 14:57:42,094 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1728 transitions. [2023-12-09 14:57:42,094 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:42,094 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1728 transitions. [2023-12-09 14:57:42,096 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 90.94736842105263) internal successors, (1728), 19 states have internal predecessors, (1728), 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 14:57:42,098 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 107.0) internal successors, (2140), 20 states have internal predecessors, (2140), 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 14:57:42,099 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 107.0) internal successors, (2140), 20 states have internal predecessors, (2140), 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 14:57:42,099 INFO L308 CegarLoopForPetriNet]: 98 programPoint places, 104 predicate places. [2023-12-09 14:57:42,099 INFO L500 AbstractCegarLoop]: Abstraction has has 202 places, 565 transitions, 8132 flow [2023-12-09 14:57:42,100 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 87.77777777777777) internal successors, (790), 9 states have internal predecessors, (790), 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 14:57:42,106 INFO L161 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i_BEv2_AllErrorsAtOnce [2023-12-09 14:57:42,160 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2023-12-09 14:57:42,160 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2023-12-09 14:57:42,160 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2023-12-09 14:57:42,161 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2023-12-09 14:57:42,161 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2023-12-09 14:57:42,161 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-09 14:57:42,161 INFO L457 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:57:42,163 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-09 14:57:42,163 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-12-09 14:57:42,169 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 02:57:42 BasicIcfg [2023-12-09 14:57:42,169 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-09 14:57:42,170 INFO L158 Benchmark]: Toolchain (without parser) took 23678.64ms. Allocated memory was 281.0MB in the beginning and 4.4GB in the end (delta: 4.1GB). Free memory was 244.3MB in the beginning and 3.0GB in the end (delta: -2.8GB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2023-12-09 14:57:42,170 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 190.8MB. Free memory was 140.4MB in the beginning and 140.3MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-09 14:57:42,170 INFO L158 Benchmark]: CACSL2BoogieTranslator took 368.91ms. Allocated memory is still 281.0MB. Free memory was 244.3MB in the beginning and 223.3MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2023-12-09 14:57:42,170 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.76ms. Allocated memory is still 281.0MB. Free memory was 223.3MB in the beginning and 221.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-09 14:57:42,170 INFO L158 Benchmark]: Boogie Preprocessor took 29.48ms. Allocated memory is still 281.0MB. Free memory was 221.3MB in the beginning and 219.7MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-09 14:57:42,171 INFO L158 Benchmark]: RCFGBuilder took 315.66ms. Allocated memory is still 281.0MB. Free memory was 219.7MB in the beginning and 204.5MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-09 14:57:42,171 INFO L158 Benchmark]: TraceAbstraction took 22901.45ms. Allocated memory was 281.0MB in the beginning and 4.4GB in the end (delta: 4.1GB). Free memory was 204.0MB in the beginning and 3.0GB in the end (delta: -2.8GB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2023-12-09 14:57:42,172 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 190.8MB. Free memory was 140.4MB in the beginning and 140.3MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 368.91ms. Allocated memory is still 281.0MB. Free memory was 244.3MB in the beginning and 223.3MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 58.76ms. Allocated memory is still 281.0MB. Free memory was 223.3MB in the beginning and 221.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.48ms. Allocated memory is still 281.0MB. Free memory was 221.3MB in the beginning and 219.7MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 315.66ms. Allocated memory is still 281.0MB. Free memory was 219.7MB in the beginning and 204.5MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 22901.45ms. Allocated memory was 281.0MB in the beginning and 4.4GB in the end (delta: 4.1GB). Free memory was 204.0MB in the beginning and 3.0GB in the end (delta: -2.8GB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 140 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 22.8s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 20.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 825 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 825 mSDsluCounter, 907 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 689 mSDsCounter, 43 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1109 IncrementalHoareTripleChecker+Invalid, 1152 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 43 mSolverCounterUnsat, 218 mSDtfsCounter, 1109 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 191 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 166 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13171occurred in iteration=5, InterpolantAutomatonStates: 159, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 730 NumberOfCodeBlocks, 730 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 719 ConstructedInterpolants, 0 QuantifiedInterpolants, 3473 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-12-09 14:57:42,203 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...