/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/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-a20a710-m [2023-12-09 14:57:14,100 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-09 14:57:14,174 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 14:57:14,200 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-09 14:57:14,200 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-09 14:57:14,201 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-09 14:57:14,201 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-09 14:57:14,201 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-09 14:57:14,202 INFO L153 SettingsManager]: * Use SBE=true [2023-12-09 14:57:14,205 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-09 14:57:14,205 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-09 14:57:14,206 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-09 14:57:14,206 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-09 14:57:14,207 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-09 14:57:14,207 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-09 14:57:14,207 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-09 14:57:14,207 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-09 14:57:14,207 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-09 14:57:14,208 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-09 14:57:14,208 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-09 14:57:14,208 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-09 14:57:14,209 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-09 14:57:14,209 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-09 14:57:14,209 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-09 14:57:14,209 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-09 14:57:14,209 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 14:57:14,209 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-09 14:57:14,210 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-09 14:57:14,210 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-09 14:57:14,210 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-09 14:57:14,211 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-09 14:57:14,211 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-09 14:57:14,211 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-09 14:57:14,211 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-12-09 14:57:14,412 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-09 14:57:14,432 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-09 14:57:14,434 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-09 14:57:14,435 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-09 14:57:14,436 INFO L274 PluginConnector]: CDTParser initialized [2023-12-09 14:57:14,437 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-12-09 14:57:15,525 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-09 14:57:15,773 INFO L384 CDTParser]: Found 1 translation units. [2023-12-09 14:57:15,774 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-12-09 14:57:15,784 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9eafd5958/96b649aa4b244b1785b282b5087ab8bb/FLAG9a6b10a6b [2023-12-09 14:57:15,794 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9eafd5958/96b649aa4b244b1785b282b5087ab8bb [2023-12-09 14:57:15,796 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-09 14:57:15,797 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-09 14:57:15,798 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-09 14:57:15,798 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-09 14:57:15,801 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-09 14:57:15,802 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:57:15" (1/1) ... [2023-12-09 14:57:15,802 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47ae678c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:15, skipping insertion in model container [2023-12-09 14:57:15,802 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:57:15" (1/1) ... [2023-12-09 14:57:15,841 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-09 14:57:15,945 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/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2023-12-09 14:57:16,120 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 14:57:16,131 INFO L202 MainTranslator]: Completed pre-run [2023-12-09 14:57:16,141 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/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2023-12-09 14:57:16,179 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 14:57:16,204 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-12-09 14:57:16,204 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-12-09 14:57:16,209 INFO L206 MainTranslator]: Completed translation [2023-12-09 14:57:16,210 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:16 WrapperNode [2023-12-09 14:57:16,210 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-09 14:57:16,211 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-09 14:57:16,211 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-09 14:57:16,211 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-09 14:57:16,216 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:16" (1/1) ... [2023-12-09 14:57:16,240 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:16" (1/1) ... [2023-12-09 14:57:16,261 INFO L138 Inliner]: procedures = 177, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 80 [2023-12-09 14:57:16,261 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-09 14:57:16,262 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-09 14:57:16,262 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-09 14:57:16,262 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-09 14:57:16,268 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:16" (1/1) ... [2023-12-09 14:57:16,268 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:16" (1/1) ... [2023-12-09 14:57:16,282 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:16" (1/1) ... [2023-12-09 14:57:16,283 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:16" (1/1) ... [2023-12-09 14:57:16,292 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:16" (1/1) ... [2023-12-09 14:57:16,294 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:16" (1/1) ... [2023-12-09 14:57:16,295 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:16" (1/1) ... [2023-12-09 14:57:16,296 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:16" (1/1) ... [2023-12-09 14:57:16,297 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-09 14:57:16,298 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-09 14:57:16,298 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-09 14:57:16,298 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-09 14:57:16,298 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:16" (1/1) ... [2023-12-09 14:57:16,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 14:57:16,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 14:57:16,341 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 14:57:16,350 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 14:57:16,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-09 14:57:16,365 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-12-09 14:57:16,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-09 14:57:16,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-09 14:57:16,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-09 14:57:16,366 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-12-09 14:57:16,366 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-12-09 14:57:16,367 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-12-09 14:57:16,367 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-12-09 14:57:16,367 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-12-09 14:57:16,367 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-12-09 14:57:16,367 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-12-09 14:57:16,367 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-12-09 14:57:16,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-09 14:57:16,367 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-12-09 14:57:16,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-09 14:57:16,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-09 14:57:16,369 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 14:57:16,508 INFO L241 CfgBuilder]: Building ICFG [2023-12-09 14:57:16,509 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-09 14:57:16,738 INFO L282 CfgBuilder]: Performing block encoding [2023-12-09 14:57:16,748 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-09 14:57:16,748 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-09 14:57:16,749 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:57:16 BoogieIcfgContainer [2023-12-09 14:57:16,749 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-09 14:57:16,751 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-09 14:57:16,751 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-09 14:57:16,753 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-09 14:57:16,753 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 02:57:15" (1/3) ... [2023-12-09 14:57:16,753 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77991a2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:57:16, skipping insertion in model container [2023-12-09 14:57:16,754 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:16" (2/3) ... [2023-12-09 14:57:16,754 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77991a2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:57:16, skipping insertion in model container [2023-12-09 14:57:16,754 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:57:16" (3/3) ... [2023-12-09 14:57:16,755 INFO L112 eAbstractionObserver]: Analyzing ICFG safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-12-09 14:57:16,770 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-09 14:57:16,770 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-09 14:57:16,770 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-09 14:57:16,809 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-12-09 14:57:16,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 117 places, 106 transitions, 228 flow [2023-12-09 14:57:16,869 INFO L124 PetriNetUnfolderBase]: 2/102 cut-off events. [2023-12-09 14:57:16,869 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-12-09 14:57:16,873 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 102 events. 2/102 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 88. Up to 2 conditions per place. [2023-12-09 14:57:16,874 INFO L82 GeneralOperation]: Start removeDead. Operand has 117 places, 106 transitions, 228 flow [2023-12-09 14:57:16,876 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 97 places, 85 transitions, 182 flow [2023-12-09 14:57:16,883 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 14:57:16,888 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;@21ee5bd1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 14:57:16,888 INFO L363 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-12-09 14:57:16,904 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 14:57:16,904 INFO L124 PetriNetUnfolderBase]: 1/84 cut-off events. [2023-12-09 14:57:16,904 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-12-09 14:57:16,904 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:16,905 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] [2023-12-09 14:57:16,905 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 14:57:16,909 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:16,909 INFO L85 PathProgramCache]: Analyzing trace with hash -259260245, now seen corresponding path program 1 times [2023-12-09 14:57:16,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:16,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696163829] [2023-12-09 14:57:16,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:16,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:17,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:17,516 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 14:57:17,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:17,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696163829] [2023-12-09 14:57:17,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696163829] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:17,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:17,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 14:57:17,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93462367] [2023-12-09 14:57:17,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:17,525 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 14:57:17,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:17,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 14:57:17,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-09 14:57:17,549 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 106 [2023-12-09 14:57:17,552 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 85 transitions, 182 flow. Second operand has 7 states, 7 states have (on average 82.0) internal successors, (574), 7 states have internal predecessors, (574), 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 14:57:17,552 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:17,553 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 106 [2023-12-09 14:57:17,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:18,107 INFO L124 PetriNetUnfolderBase]: 872/2143 cut-off events. [2023-12-09 14:57:18,107 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2023-12-09 14:57:18,151 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3567 conditions, 2143 events. 872/2143 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 15249 event pairs, 109 based on Foata normal form. 63/2138 useless extension candidates. Maximal degree in co-relation 3533. Up to 434 conditions per place. [2023-12-09 14:57:18,165 INFO L140 encePairwiseOnDemand]: 93/106 looper letters, 27 selfloop transitions, 8 changer transitions 56/155 dead transitions. [2023-12-09 14:57:18,165 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 155 transitions, 510 flow [2023-12-09 14:57:18,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-09 14:57:18,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-12-09 14:57:18,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1137 transitions. [2023-12-09 14:57:18,180 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8251088534107403 [2023-12-09 14:57:18,181 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1137 transitions. [2023-12-09 14:57:18,181 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1137 transitions. [2023-12-09 14:57:18,185 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:18,188 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1137 transitions. [2023-12-09 14:57:18,195 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 87.46153846153847) internal successors, (1137), 13 states have internal predecessors, (1137), 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 14:57:18,201 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 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 14:57:18,202 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 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 14:57:18,205 INFO L308 CegarLoopForPetriNet]: 97 programPoint places, 12 predicate places. [2023-12-09 14:57:18,205 INFO L500 AbstractCegarLoop]: Abstraction has has 109 places, 155 transitions, 510 flow [2023-12-09 14:57:18,205 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 82.0) internal successors, (574), 7 states have internal predecessors, (574), 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 14:57:18,206 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:18,206 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] [2023-12-09 14:57:18,206 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-09 14:57:18,206 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 14:57:18,206 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:18,207 INFO L85 PathProgramCache]: Analyzing trace with hash -2054486550, now seen corresponding path program 1 times [2023-12-09 14:57:18,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:18,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361254519] [2023-12-09 14:57:18,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:18,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:18,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:18,475 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 14:57:18,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:18,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361254519] [2023-12-09 14:57:18,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361254519] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:18,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:18,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 14:57:18,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603483829] [2023-12-09 14:57:18,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:18,478 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 14:57:18,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:18,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 14:57:18,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-09 14:57:18,479 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 106 [2023-12-09 14:57:18,480 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 155 transitions, 510 flow. Second operand has 7 states, 7 states have (on average 82.14285714285714) internal successors, (575), 7 states have internal predecessors, (575), 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 14:57:18,480 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:18,480 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 106 [2023-12-09 14:57:18,480 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:18,960 INFO L124 PetriNetUnfolderBase]: 1142/3022 cut-off events. [2023-12-09 14:57:18,960 INFO L125 PetriNetUnfolderBase]: For 169/1043 co-relation queries the response was YES. [2023-12-09 14:57:18,969 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6773 conditions, 3022 events. 1142/3022 cut-off events. For 169/1043 co-relation queries the response was YES. Maximal size of possible extension queue 236. Compared 24997 event pairs, 46 based on Foata normal form. 63/3027 useless extension candidates. Maximal degree in co-relation 6732. Up to 533 conditions per place. [2023-12-09 14:57:18,977 INFO L140 encePairwiseOnDemand]: 94/106 looper letters, 42 selfloop transitions, 17 changer transitions 255/378 dead transitions. [2023-12-09 14:57:18,977 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 378 transitions, 2051 flow [2023-12-09 14:57:18,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-09 14:57:18,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-12-09 14:57:18,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1149 transitions. [2023-12-09 14:57:18,979 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8338171262699564 [2023-12-09 14:57:18,979 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1149 transitions. [2023-12-09 14:57:18,979 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1149 transitions. [2023-12-09 14:57:18,980 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:18,980 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1149 transitions. [2023-12-09 14:57:18,982 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 88.38461538461539) internal successors, (1149), 13 states have internal predecessors, (1149), 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 14:57:18,984 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 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 14:57:18,985 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 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 14:57:18,986 INFO L308 CegarLoopForPetriNet]: 97 programPoint places, 24 predicate places. [2023-12-09 14:57:18,986 INFO L500 AbstractCegarLoop]: Abstraction has has 121 places, 378 transitions, 2051 flow [2023-12-09 14:57:18,987 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 82.14285714285714) internal successors, (575), 7 states have internal predecessors, (575), 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 14:57:18,987 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:18,987 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] [2023-12-09 14:57:18,988 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-09 14:57:18,988 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 14:57:18,990 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:18,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1944018985, now seen corresponding path program 1 times [2023-12-09 14:57:18,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:18,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750772878] [2023-12-09 14:57:18,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:18,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:19,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:19,241 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 14:57:19,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:19,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750772878] [2023-12-09 14:57:19,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750772878] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:19,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:19,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 14:57:19,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763277866] [2023-12-09 14:57:19,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:19,244 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 14:57:19,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:19,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 14:57:19,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-09 14:57:19,251 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 106 [2023-12-09 14:57:19,252 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 378 transitions, 2051 flow. Second operand has 7 states, 7 states have (on average 82.28571428571429) internal successors, (576), 7 states have internal predecessors, (576), 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 14:57:19,252 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:19,252 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 106 [2023-12-09 14:57:19,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:19,830 INFO L124 PetriNetUnfolderBase]: 1679/4450 cut-off events. [2023-12-09 14:57:19,830 INFO L125 PetriNetUnfolderBase]: For 487/1769 co-relation queries the response was YES. [2023-12-09 14:57:19,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12735 conditions, 4450 events. 1679/4450 cut-off events. For 487/1769 co-relation queries the response was YES. Maximal size of possible extension queue 404. Compared 41231 event pairs, 36 based on Foata normal form. 68/4473 useless extension candidates. Maximal degree in co-relation 12687. Up to 727 conditions per place. [2023-12-09 14:57:19,850 INFO L140 encePairwiseOnDemand]: 95/106 looper letters, 61 selfloop transitions, 20 changer transitions 624/769 dead transitions. [2023-12-09 14:57:19,851 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 769 transitions, 5834 flow [2023-12-09 14:57:19,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-09 14:57:19,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-12-09 14:57:19,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1138 transitions. [2023-12-09 14:57:19,853 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8258345428156749 [2023-12-09 14:57:19,853 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1138 transitions. [2023-12-09 14:57:19,854 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1138 transitions. [2023-12-09 14:57:19,854 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:19,854 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1138 transitions. [2023-12-09 14:57:19,856 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 87.53846153846153) internal successors, (1138), 13 states have internal predecessors, (1138), 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 14:57:19,858 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 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 14:57:19,858 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 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 14:57:19,859 INFO L308 CegarLoopForPetriNet]: 97 programPoint places, 36 predicate places. [2023-12-09 14:57:19,859 INFO L500 AbstractCegarLoop]: Abstraction has has 133 places, 769 transitions, 5834 flow [2023-12-09 14:57:19,860 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 82.28571428571429) internal successors, (576), 7 states have internal predecessors, (576), 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 14:57:19,860 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:19,860 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 14:57:19,860 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-09 14:57:19,860 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 14:57:19,861 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:19,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1709643771, now seen corresponding path program 1 times [2023-12-09 14:57:19,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:19,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241105015] [2023-12-09 14:57:19,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:19,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:19,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:20,110 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 14:57:20,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:20,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241105015] [2023-12-09 14:57:20,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241105015] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:20,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:20,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-09 14:57:20,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109657651] [2023-12-09 14:57:20,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:20,114 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-09 14:57:20,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:20,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-09 14:57:20,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-09 14:57:20,116 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 106 [2023-12-09 14:57:20,118 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 769 transitions, 5834 flow. Second operand has 8 states, 8 states have (on average 82.125) internal successors, (657), 8 states have internal predecessors, (657), 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 14:57:20,118 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:20,118 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 106 [2023-12-09 14:57:20,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:21,125 INFO L124 PetriNetUnfolderBase]: 2165/6491 cut-off events. [2023-12-09 14:57:21,125 INFO L125 PetriNetUnfolderBase]: For 1309/4456 co-relation queries the response was YES. [2023-12-09 14:57:21,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21340 conditions, 6491 events. 2165/6491 cut-off events. For 1309/4456 co-relation queries the response was YES. Maximal size of possible extension queue 680. Compared 70042 event pairs, 5 based on Foata normal form. 200/6658 useless extension candidates. Maximal degree in co-relation 21285. Up to 996 conditions per place. [2023-12-09 14:57:21,158 INFO L140 encePairwiseOnDemand]: 94/106 looper letters, 50 selfloop transitions, 25 changer transitions 1512/1651 dead transitions. [2023-12-09 14:57:21,158 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 1651 transitions, 16082 flow [2023-12-09 14:57:21,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-09 14:57:21,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-12-09 14:57:21,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1486 transitions. [2023-12-09 14:57:21,162 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8246392896781354 [2023-12-09 14:57:21,162 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1486 transitions. [2023-12-09 14:57:21,162 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1486 transitions. [2023-12-09 14:57:21,163 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:21,163 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1486 transitions. [2023-12-09 14:57:21,166 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 87.41176470588235) internal successors, (1486), 17 states have internal predecessors, (1486), 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 14:57:21,168 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 106.0) internal successors, (1908), 18 states have internal predecessors, (1908), 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 14:57:21,169 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 106.0) internal successors, (1908), 18 states have internal predecessors, (1908), 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 14:57:21,170 INFO L308 CegarLoopForPetriNet]: 97 programPoint places, 52 predicate places. [2023-12-09 14:57:21,170 INFO L500 AbstractCegarLoop]: Abstraction has has 149 places, 1651 transitions, 16082 flow [2023-12-09 14:57:21,170 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 82.125) internal successors, (657), 8 states have internal predecessors, (657), 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 14:57:21,170 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:21,170 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 14:57:21,170 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-09 14:57:21,171 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 14:57:21,171 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:21,171 INFO L85 PathProgramCache]: Analyzing trace with hash 206209493, now seen corresponding path program 1 times [2023-12-09 14:57:21,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:21,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136143273] [2023-12-09 14:57:21,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:21,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:21,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:21,311 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 14:57:21,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:21,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136143273] [2023-12-09 14:57:21,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136143273] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:21,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:21,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 14:57:21,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806882614] [2023-12-09 14:57:21,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:21,312 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 14:57:21,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:21,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 14:57:21,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-09 14:57:21,314 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 106 [2023-12-09 14:57:21,314 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 1651 transitions, 16082 flow. Second operand has 7 states, 7 states have (on average 82.57142857142857) internal successors, (578), 7 states have internal predecessors, (578), 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 14:57:21,314 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:21,314 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 106 [2023-12-09 14:57:21,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:22,760 INFO L124 PetriNetUnfolderBase]: 2402/8022 cut-off events. [2023-12-09 14:57:22,760 INFO L125 PetriNetUnfolderBase]: For 2591/12425 co-relation queries the response was YES. [2023-12-09 14:57:22,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29832 conditions, 8022 events. 2402/8022 cut-off events. For 2591/12425 co-relation queries the response was YES. Maximal size of possible extension queue 872. Compared 95994 event pairs, 0 based on Foata normal form. 305/8290 useless extension candidates. Maximal degree in co-relation 29770. Up to 1414 conditions per place. [2023-12-09 14:57:22,795 INFO L140 encePairwiseOnDemand]: 95/106 looper letters, 62 selfloop transitions, 21 changer transitions 1975/2122 dead transitions. [2023-12-09 14:57:22,796 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 2122 transitions, 24908 flow [2023-12-09 14:57:22,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-09 14:57:22,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-12-09 14:57:22,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1140 transitions. [2023-12-09 14:57:22,813 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8272859216255443 [2023-12-09 14:57:22,813 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1140 transitions. [2023-12-09 14:57:22,813 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1140 transitions. [2023-12-09 14:57:22,814 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:22,814 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1140 transitions. [2023-12-09 14:57:22,816 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 87.6923076923077) internal successors, (1140), 13 states have internal predecessors, (1140), 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 14:57:22,818 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 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 14:57:22,818 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 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 14:57:22,819 INFO L308 CegarLoopForPetriNet]: 97 programPoint places, 64 predicate places. [2023-12-09 14:57:22,819 INFO L500 AbstractCegarLoop]: Abstraction has has 161 places, 2122 transitions, 24908 flow [2023-12-09 14:57:22,819 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 82.57142857142857) internal successors, (578), 7 states have internal predecessors, (578), 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 14:57:22,819 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:22,819 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 14:57:22,819 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-09 14:57:22,820 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 14:57:22,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:22,820 INFO L85 PathProgramCache]: Analyzing trace with hash 43607370, now seen corresponding path program 1 times [2023-12-09 14:57:22,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:22,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304378973] [2023-12-09 14:57:22,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:22,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:22,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:22,937 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 14:57:22,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:22,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304378973] [2023-12-09 14:57:22,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304378973] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:22,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:22,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 14:57:22,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930896428] [2023-12-09 14:57:22,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:22,938 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 14:57:22,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:22,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 14:57:22,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-09 14:57:22,939 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 106 [2023-12-09 14:57:22,940 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 2122 transitions, 24908 flow. Second operand has 7 states, 7 states have (on average 82.57142857142857) internal successors, (578), 7 states have internal predecessors, (578), 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 14:57:22,940 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:22,940 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 106 [2023-12-09 14:57:22,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:24,692 INFO L124 PetriNetUnfolderBase]: 2493/8636 cut-off events. [2023-12-09 14:57:24,692 INFO L125 PetriNetUnfolderBase]: For 4179/19484 co-relation queries the response was YES. [2023-12-09 14:57:24,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37021 conditions, 8636 events. 2493/8636 cut-off events. For 4179/19484 co-relation queries the response was YES. Maximal size of possible extension queue 987. Compared 106782 event pairs, 0 based on Foata normal form. 393/8998 useless extension candidates. Maximal degree in co-relation 36952. Up to 1576 conditions per place. [2023-12-09 14:57:24,735 INFO L140 encePairwiseOnDemand]: 95/106 looper letters, 60 selfloop transitions, 21 changer transitions 2318/2463 dead transitions. [2023-12-09 14:57:24,736 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 2463 transitions, 33804 flow [2023-12-09 14:57:24,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-09 14:57:24,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-12-09 14:57:24,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1142 transitions. [2023-12-09 14:57:24,738 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8287373004354136 [2023-12-09 14:57:24,738 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1142 transitions. [2023-12-09 14:57:24,738 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1142 transitions. [2023-12-09 14:57:24,738 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:24,739 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1142 transitions. [2023-12-09 14:57:24,740 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 14:57:24,743 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 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 14:57:24,743 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 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 14:57:24,745 INFO L308 CegarLoopForPetriNet]: 97 programPoint places, 76 predicate places. [2023-12-09 14:57:24,745 INFO L500 AbstractCegarLoop]: Abstraction has has 173 places, 2463 transitions, 33804 flow [2023-12-09 14:57:24,745 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 82.57142857142857) internal successors, (578), 7 states have internal predecessors, (578), 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 14:57:24,745 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:24,745 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] [2023-12-09 14:57:24,745 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-09 14:57:24,746 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 14:57:24,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:24,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1301795021, now seen corresponding path program 1 times [2023-12-09 14:57:24,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:24,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721294970] [2023-12-09 14:57:24,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:24,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:24,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:24,885 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 14:57:24,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:24,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721294970] [2023-12-09 14:57:24,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721294970] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:24,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:24,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-09 14:57:24,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175603640] [2023-12-09 14:57:24,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:24,972 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-09 14:57:24,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:24,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-09 14:57:24,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-09 14:57:24,973 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 106 [2023-12-09 14:57:24,974 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 2463 transitions, 33804 flow. Second operand has 6 states, 6 states have (on average 87.16666666666667) internal successors, (523), 6 states have internal predecessors, (523), 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 14:57:24,974 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:24,974 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 106 [2023-12-09 14:57:24,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:32,260 INFO L124 PetriNetUnfolderBase]: 12325/30848 cut-off events. [2023-12-09 14:57:32,261 INFO L125 PetriNetUnfolderBase]: For 15585/21342 co-relation queries the response was YES. [2023-12-09 14:57:32,579 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99311 conditions, 30848 events. 12325/30848 cut-off events. For 15585/21342 co-relation queries the response was YES. Maximal size of possible extension queue 2140. Compared 395593 event pairs, 940 based on Foata normal form. 315/29707 useless extension candidates. Maximal degree in co-relation 99238. Up to 9193 conditions per place. [2023-12-09 14:57:32,703 INFO L140 encePairwiseOnDemand]: 95/106 looper letters, 54 selfloop transitions, 20 changer transitions 1296/2025 dead transitions. [2023-12-09 14:57:32,703 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 2025 transitions, 27495 flow [2023-12-09 14:57:32,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-09 14:57:32,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-12-09 14:57:32,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 910 transitions. [2023-12-09 14:57:32,705 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8584905660377359 [2023-12-09 14:57:32,706 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 910 transitions. [2023-12-09 14:57:32,706 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 910 transitions. [2023-12-09 14:57:32,706 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:32,706 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 910 transitions. [2023-12-09 14:57:32,708 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 91.0) internal successors, (910), 10 states have internal predecessors, (910), 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 14:57:32,709 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 106.0) internal successors, (1166), 11 states have internal predecessors, (1166), 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 14:57:32,709 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 106.0) internal successors, (1166), 11 states have internal predecessors, (1166), 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 14:57:32,710 INFO L308 CegarLoopForPetriNet]: 97 programPoint places, 85 predicate places. [2023-12-09 14:57:32,711 INFO L500 AbstractCegarLoop]: Abstraction has has 182 places, 2025 transitions, 27495 flow [2023-12-09 14:57:32,711 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 87.16666666666667) internal successors, (523), 6 states have internal predecessors, (523), 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 14:57:32,711 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:32,711 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] [2023-12-09 14:57:32,711 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-09 14:57:32,711 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 14:57:32,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:32,712 INFO L85 PathProgramCache]: Analyzing trace with hash -330938514, now seen corresponding path program 1 times [2023-12-09 14:57:32,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:32,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807588169] [2023-12-09 14:57:32,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:32,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:32,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:32,836 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 14:57:32,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:32,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807588169] [2023-12-09 14:57:32,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807588169] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:32,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:32,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 14:57:32,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106966624] [2023-12-09 14:57:32,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:32,837 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 14:57:32,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:32,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 14:57:32,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-09 14:57:32,839 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 106 [2023-12-09 14:57:32,839 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 2025 transitions, 27495 flow. Second operand has 7 states, 7 states have (on average 87.0) internal successors, (609), 7 states have internal predecessors, (609), 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 14:57:32,839 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:32,839 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 106 [2023-12-09 14:57:32,839 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:37,276 INFO L124 PetriNetUnfolderBase]: 8884/20189 cut-off events. [2023-12-09 14:57:37,276 INFO L125 PetriNetUnfolderBase]: For 18394/29225 co-relation queries the response was YES. [2023-12-09 14:57:37,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68328 conditions, 20189 events. 8884/20189 cut-off events. For 18394/29225 co-relation queries the response was YES. Maximal size of possible extension queue 1828. Compared 231200 event pairs, 105 based on Foata normal form. 991/20190 useless extension candidates. Maximal degree in co-relation 68251. Up to 6941 conditions per place. [2023-12-09 14:57:37,404 INFO L140 encePairwiseOnDemand]: 95/106 looper letters, 81 selfloop transitions, 54 changer transitions 770/1179 dead transitions. [2023-12-09 14:57:37,405 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 1179 transitions, 15497 flow [2023-12-09 14:57:37,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-09 14:57:37,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-12-09 14:57:37,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1184 transitions. [2023-12-09 14:57:37,407 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8592162554426706 [2023-12-09 14:57:37,407 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1184 transitions. [2023-12-09 14:57:37,407 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1184 transitions. [2023-12-09 14:57:37,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:37,408 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1184 transitions. [2023-12-09 14:57:37,410 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 91.07692307692308) internal successors, (1184), 13 states have internal predecessors, (1184), 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 14:57:37,411 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 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 14:57:37,412 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 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 14:57:37,414 INFO L308 CegarLoopForPetriNet]: 97 programPoint places, 97 predicate places. [2023-12-09 14:57:37,414 INFO L500 AbstractCegarLoop]: Abstraction has has 194 places, 1179 transitions, 15497 flow [2023-12-09 14:57:37,414 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 87.0) internal successors, (609), 7 states have internal predecessors, (609), 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 14:57:37,414 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:37,415 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] [2023-12-09 14:57:37,416 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-09 14:57:37,416 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 14:57:37,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:37,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1007079727, now seen corresponding path program 1 times [2023-12-09 14:57:37,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:37,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119148895] [2023-12-09 14:57:37,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:37,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:37,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:37,521 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 14:57:37,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:37,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119148895] [2023-12-09 14:57:37,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119148895] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:37,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:37,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-09 14:57:37,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657504368] [2023-12-09 14:57:37,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:37,523 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-09 14:57:37,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:37,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-09 14:57:37,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-09 14:57:37,525 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 106 [2023-12-09 14:57:37,525 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 1179 transitions, 15497 flow. Second operand has 8 states, 8 states have (on average 86.875) internal successors, (695), 8 states have internal predecessors, (695), 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 14:57:37,525 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:37,525 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 106 [2023-12-09 14:57:37,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:40,223 INFO L124 PetriNetUnfolderBase]: 7391/17129 cut-off events. [2023-12-09 14:57:40,223 INFO L125 PetriNetUnfolderBase]: For 16559/24362 co-relation queries the response was YES. [2023-12-09 14:57:40,297 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60978 conditions, 17129 events. 7391/17129 cut-off events. For 16559/24362 co-relation queries the response was YES. Maximal size of possible extension queue 1915. Compared 196900 event pairs, 0 based on Foata normal form. 1037/17514 useless extension candidates. Maximal degree in co-relation 60897. Up to 5839 conditions per place. [2023-12-09 14:57:40,354 INFO L140 encePairwiseOnDemand]: 95/106 looper letters, 63 selfloop transitions, 106 changer transitions 403/695 dead transitions. [2023-12-09 14:57:40,354 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 695 transitions, 8650 flow [2023-12-09 14:57:40,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-09 14:57:40,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-12-09 14:57:40,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1457 transitions. [2023-12-09 14:57:40,359 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8590801886792453 [2023-12-09 14:57:40,359 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1457 transitions. [2023-12-09 14:57:40,359 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1457 transitions. [2023-12-09 14:57:40,360 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:40,360 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1457 transitions. [2023-12-09 14:57:40,362 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 91.0625) internal successors, (1457), 16 states have internal predecessors, (1457), 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 14:57:40,364 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 106.0) internal successors, (1802), 17 states have internal predecessors, (1802), 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 14:57:40,365 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 106.0) internal successors, (1802), 17 states have internal predecessors, (1802), 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 14:57:40,365 INFO L308 CegarLoopForPetriNet]: 97 programPoint places, 106 predicate places. [2023-12-09 14:57:40,365 INFO L500 AbstractCegarLoop]: Abstraction has has 203 places, 695 transitions, 8650 flow [2023-12-09 14:57:40,366 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 86.875) internal successors, (695), 8 states have internal predecessors, (695), 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 14:57:40,366 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:40,366 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] [2023-12-09 14:57:40,366 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-09 14:57:40,366 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 14:57:40,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:40,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1999892956, now seen corresponding path program 1 times [2023-12-09 14:57:40,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:40,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225235913] [2023-12-09 14:57:40,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:40,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:40,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:40,503 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 14:57:40,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:40,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225235913] [2023-12-09 14:57:40,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225235913] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:40,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:40,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 14:57:40,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829561623] [2023-12-09 14:57:40,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:40,506 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 14:57:40,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:40,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 14:57:40,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-09 14:57:40,508 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 106 [2023-12-09 14:57:40,509 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 695 transitions, 8650 flow. Second operand has 7 states, 7 states have (on average 87.14285714285714) internal successors, (610), 7 states have internal predecessors, (610), 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 14:57:40,509 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:40,509 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 106 [2023-12-09 14:57:40,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:43,581 INFO L124 PetriNetUnfolderBase]: 12414/27926 cut-off events. [2023-12-09 14:57:43,582 INFO L125 PetriNetUnfolderBase]: For 27672/47589 co-relation queries the response was YES. [2023-12-09 14:57:43,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101347 conditions, 27926 events. 12414/27926 cut-off events. For 27672/47589 co-relation queries the response was YES. Maximal size of possible extension queue 3281. Compared 340938 event pairs, 0 based on Foata normal form. 324/27062 useless extension candidates. Maximal degree in co-relation 101261. Up to 9883 conditions per place. [2023-12-09 14:57:43,770 INFO L140 encePairwiseOnDemand]: 97/106 looper letters, 41 selfloop transitions, 10 changer transitions 623/878 dead transitions. [2023-12-09 14:57:43,771 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 878 transitions, 12560 flow [2023-12-09 14:57:43,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-09 14:57:43,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-12-09 14:57:43,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 891 transitions. [2023-12-09 14:57:43,772 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.840566037735849 [2023-12-09 14:57:43,772 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 891 transitions. [2023-12-09 14:57:43,773 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 891 transitions. [2023-12-09 14:57:43,773 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:43,773 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 891 transitions. [2023-12-09 14:57:43,776 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 89.1) internal successors, (891), 10 states have internal predecessors, (891), 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 14:57:43,777 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 106.0) internal successors, (1166), 11 states have internal predecessors, (1166), 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 14:57:43,777 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 106.0) internal successors, (1166), 11 states have internal predecessors, (1166), 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 14:57:43,778 INFO L308 CegarLoopForPetriNet]: 97 programPoint places, 115 predicate places. [2023-12-09 14:57:43,778 INFO L500 AbstractCegarLoop]: Abstraction has has 212 places, 878 transitions, 12560 flow [2023-12-09 14:57:43,778 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 87.14285714285714) internal successors, (610), 7 states have internal predecessors, (610), 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 14:57:43,778 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:43,778 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] [2023-12-09 14:57:43,778 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-09 14:57:43,779 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 14:57:43,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:43,780 INFO L85 PathProgramCache]: Analyzing trace with hash -139636508, now seen corresponding path program 2 times [2023-12-09 14:57:43,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:43,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093779425] [2023-12-09 14:57:43,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:43,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:43,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:43,897 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 14:57:43,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:43,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093779425] [2023-12-09 14:57:43,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093779425] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:43,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:43,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-09 14:57:43,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257197310] [2023-12-09 14:57:43,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:43,898 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-09 14:57:43,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:43,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-09 14:57:43,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-09 14:57:43,899 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 106 [2023-12-09 14:57:43,900 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 878 transitions, 12560 flow. Second operand has 9 states, 9 states have (on average 86.77777777777777) internal successors, (781), 9 states have internal predecessors, (781), 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 14:57:43,900 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:43,900 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 106 [2023-12-09 14:57:43,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:47,733 INFO L124 PetriNetUnfolderBase]: 12239/26125 cut-off events. [2023-12-09 14:57:47,733 INFO L125 PetriNetUnfolderBase]: For 30145/55504 co-relation queries the response was YES. [2023-12-09 14:57:47,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111925 conditions, 26125 events. 12239/26125 cut-off events. For 30145/55504 co-relation queries the response was YES. Maximal size of possible extension queue 3312. Compared 312929 event pairs, 0 based on Foata normal form. 2075/26817 useless extension candidates. Maximal degree in co-relation 111835. Up to 9540 conditions per place. [2023-12-09 14:57:47,948 INFO L140 encePairwiseOnDemand]: 95/106 looper letters, 0 selfloop transitions, 0 changer transitions 577/577 dead transitions. [2023-12-09 14:57:47,948 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 577 transitions, 8262 flow [2023-12-09 14:57:47,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-09 14:57:47,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-12-09 14:57:47,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1709 transitions. [2023-12-09 14:57:47,968 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8485600794438928 [2023-12-09 14:57:47,969 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1709 transitions. [2023-12-09 14:57:47,969 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1709 transitions. [2023-12-09 14:57:47,969 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:47,969 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1709 transitions. [2023-12-09 14:57:47,972 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 89.94736842105263) internal successors, (1709), 19 states have internal predecessors, (1709), 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 14:57:47,974 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 106.0) internal successors, (2120), 20 states have internal predecessors, (2120), 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 14:57:47,974 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 106.0) internal successors, (2120), 20 states have internal predecessors, (2120), 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 14:57:47,974 INFO L308 CegarLoopForPetriNet]: 97 programPoint places, 104 predicate places. [2023-12-09 14:57:47,975 INFO L500 AbstractCegarLoop]: Abstraction has has 201 places, 577 transitions, 8262 flow [2023-12-09 14:57:47,975 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 86.77777777777777) internal successors, (781), 9 states have internal predecessors, (781), 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 14:57:47,981 INFO L161 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i_BEv2_AllErrorsAtOnce [2023-12-09 14:57:48,068 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2023-12-09 14:57:48,069 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2023-12-09 14:57:48,069 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2023-12-09 14:57:48,084 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2023-12-09 14:57:48,084 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2023-12-09 14:57:48,085 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-09 14:57:48,085 INFO L457 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:57:48,087 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-09 14:57:48,088 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-12-09 14:57:48,095 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 02:57:48 BasicIcfg [2023-12-09 14:57:48,096 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-09 14:57:48,096 INFO L158 Benchmark]: Toolchain (without parser) took 32299.00ms. Allocated memory was 195.0MB in the beginning and 5.7GB in the end (delta: 5.5GB). Free memory was 148.2MB in the beginning and 4.4GB in the end (delta: -4.3GB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. [2023-12-09 14:57:48,096 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 195.0MB. Free memory is still 152.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-09 14:57:48,096 INFO L158 Benchmark]: CACSL2BoogieTranslator took 412.40ms. Allocated memory is still 195.0MB. Free memory was 148.2MB in the beginning and 127.2MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2023-12-09 14:57:48,097 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.22ms. Allocated memory is still 195.0MB. Free memory was 127.2MB in the beginning and 125.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-09 14:57:48,097 INFO L158 Benchmark]: Boogie Preprocessor took 35.69ms. Allocated memory is still 195.0MB. Free memory was 125.2MB in the beginning and 123.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-09 14:57:48,097 INFO L158 Benchmark]: RCFGBuilder took 451.74ms. Allocated memory is still 195.0MB. Free memory was 123.7MB in the beginning and 166.0MB in the end (delta: -42.3MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-12-09 14:57:48,106 INFO L158 Benchmark]: TraceAbstraction took 31344.73ms. Allocated memory was 195.0MB in the beginning and 5.7GB in the end (delta: 5.5GB). Free memory was 164.9MB in the beginning and 4.4GB in the end (delta: -4.2GB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. [2023-12-09 14:57:48,107 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 195.0MB. Free memory is still 152.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 412.40ms. Allocated memory is still 195.0MB. Free memory was 148.2MB in the beginning and 127.2MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 50.22ms. Allocated memory is still 195.0MB. Free memory was 127.2MB in the beginning and 125.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 35.69ms. Allocated memory is still 195.0MB. Free memory was 125.2MB in the beginning and 123.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 451.74ms. Allocated memory is still 195.0MB. Free memory was 123.7MB in the beginning and 166.0MB in the end (delta: -42.3MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * TraceAbstraction took 31344.73ms. Allocated memory was 195.0MB in the beginning and 5.7GB in the end (delta: 5.5GB). Free memory was 164.9MB in the beginning and 4.4GB in the end (delta: -4.2GB). Peak memory consumption was 1.5GB. 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, 139 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: 31.3s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 28.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 837 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 837 mSDsluCounter, 1032 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 778 mSDsCounter, 54 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1113 IncrementalHoareTripleChecker+Invalid, 1167 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 54 mSolverCounterUnsat, 254 mSDtfsCounter, 1113 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 186 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 345 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33804occurred in iteration=6, InterpolantAutomatonStates: 150, 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, 1.9s InterpolantComputationTime, 712 NumberOfCodeBlocks, 712 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 701 ConstructedInterpolants, 0 QuantifiedInterpolants, 3563 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 14:57:48,129 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...