/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_20-publish-regression_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 04:51:03,477 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 04:51:03,560 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-VariableLbe.epf [2023-08-27 04:51:03,564 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 04:51:03,565 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 04:51:03,595 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 04:51:03,596 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 04:51:03,596 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 04:51:03,597 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 04:51:03,600 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 04:51:03,600 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 04:51:03,601 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 04:51:03,601 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 04:51:03,602 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 04:51:03,602 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 04:51:03,602 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 04:51:03,602 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 04:51:03,603 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 04:51:03,603 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 04:51:03,603 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 04:51:03,603 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 04:51:03,604 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 04:51:03,604 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 04:51:03,605 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 04:51:03,605 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 04:51:03,605 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 04:51:03,605 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 04:51:03,605 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 04:51:03,606 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 04:51:03,606 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 04:51:03,607 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 04:51:03,607 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 04:51:03,607 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 04:51:03,607 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 04:51:03,607 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 04:51:03,608 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 04:51:03,899 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 04:51:03,920 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 04:51:03,922 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 04:51:03,923 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 04:51:03,923 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 04:51:03,924 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_20-publish-regression_true.i [2023-08-27 04:51:05,090 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 04:51:05,387 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 04:51:05,388 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_20-publish-regression_true.i [2023-08-27 04:51:05,405 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1205f2e98/291e1a5997c24350a7c4438f81e9123c/FLAG6e84fc949 [2023-08-27 04:51:05,421 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1205f2e98/291e1a5997c24350a7c4438f81e9123c [2023-08-27 04:51:05,423 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 04:51:05,424 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 04:51:05,425 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 04:51:05,425 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 04:51:05,427 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 04:51:05,428 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:51:05" (1/1) ... [2023-08-27 04:51:05,429 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a0ec5ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:51:05, skipping insertion in model container [2023-08-27 04:51:05,429 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:51:05" (1/1) ... [2023-08-27 04:51:05,478 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 04:51:05,810 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 04:51:05,828 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 04:51:05,859 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [231] [2023-08-27 04:51:05,861 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [232] [2023-08-27 04:51:05,875 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 04:51:05,920 INFO L206 MainTranslator]: Completed translation [2023-08-27 04:51:05,921 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:51:05 WrapperNode [2023-08-27 04:51:05,921 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 04:51:05,922 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 04:51:05,922 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 04:51:05,922 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 04:51:05,928 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:51:05" (1/1) ... [2023-08-27 04:51:05,956 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:51:05" (1/1) ... [2023-08-27 04:51:05,982 INFO L138 Inliner]: procedures = 162, calls = 32, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 84 [2023-08-27 04:51:05,982 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 04:51:05,983 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 04:51:05,983 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 04:51:05,984 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 04:51:05,991 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:51:05" (1/1) ... [2023-08-27 04:51:05,991 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:51:05" (1/1) ... [2023-08-27 04:51:05,998 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:51:05" (1/1) ... [2023-08-27 04:51:05,999 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:51:05" (1/1) ... [2023-08-27 04:51:06,012 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:51:05" (1/1) ... [2023-08-27 04:51:06,013 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:51:05" (1/1) ... [2023-08-27 04:51:06,014 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:51:05" (1/1) ... [2023-08-27 04:51:06,015 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:51:05" (1/1) ... [2023-08-27 04:51:06,017 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 04:51:06,018 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 04:51:06,018 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 04:51:06,018 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 04:51:06,019 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:51:05" (1/1) ... [2023-08-27 04:51:06,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 04:51:06,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 04:51:06,054 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) [2023-08-27 04:51:06,077 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 [2023-08-27 04:51:06,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-27 04:51:06,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 04:51:06,095 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-27 04:51:06,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 04:51:06,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 04:51:06,096 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-27 04:51:06,096 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-27 04:51:06,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 04:51:06,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 04:51:06,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 04:51:06,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 04:51:06,098 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-27 04:51:06,238 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 04:51:06,240 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 04:51:06,439 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 04:51:06,448 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 04:51:06,448 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-27 04:51:06,450 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:51:06 BoogieIcfgContainer [2023-08-27 04:51:06,450 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 04:51:06,452 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 04:51:06,452 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 04:51:06,455 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 04:51:06,455 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 04:51:05" (1/3) ... [2023-08-27 04:51:06,456 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aa53c89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 04:51:06, skipping insertion in model container [2023-08-27 04:51:06,457 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:51:05" (2/3) ... [2023-08-27 04:51:06,458 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aa53c89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 04:51:06, skipping insertion in model container [2023-08-27 04:51:06,458 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:51:06" (3/3) ... [2023-08-27 04:51:06,459 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_20-publish-regression_true.i [2023-08-27 04:51:06,476 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 04:51:06,477 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-08-27 04:51:06,477 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 04:51:06,518 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-27 04:51:06,547 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 91 places, 93 transitions, 194 flow [2023-08-27 04:51:06,582 INFO L124 PetriNetUnfolderBase]: 6/92 cut-off events. [2023-08-27 04:51:06,583 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-27 04:51:06,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 92 events. 6/92 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 73 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2023-08-27 04:51:06,588 INFO L82 GeneralOperation]: Start removeDead. Operand has 91 places, 93 transitions, 194 flow [2023-08-27 04:51:06,591 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 83 places, 85 transitions, 173 flow [2023-08-27 04:51:06,594 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 04:51:06,605 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 85 transitions, 173 flow [2023-08-27 04:51:06,607 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 85 transitions, 173 flow [2023-08-27 04:51:06,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 83 places, 85 transitions, 173 flow [2023-08-27 04:51:06,646 INFO L124 PetriNetUnfolderBase]: 6/85 cut-off events. [2023-08-27 04:51:06,647 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 04:51:06,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 85 events. 6/85 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 73 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2023-08-27 04:51:06,651 INFO L119 LiptonReduction]: Number of co-enabled transitions 936 [2023-08-27 04:51:09,453 INFO L134 LiptonReduction]: Checked pairs total: 1717 [2023-08-27 04:51:09,453 INFO L136 LiptonReduction]: Total number of compositions: 90 [2023-08-27 04:51:09,465 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 04:51:09,471 INFO L357 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=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@19b77329, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 04:51:09,471 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-08-27 04:51:09,473 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 04:51:09,473 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2023-08-27 04:51:09,473 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 04:51:09,473 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 04:51:09,474 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-27 04:51:09,474 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-27 04:51:09,478 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 04:51:09,479 INFO L85 PathProgramCache]: Analyzing trace with hash 361, now seen corresponding path program 1 times [2023-08-27 04:51:09,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 04:51:09,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855774575] [2023-08-27 04:51:09,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 04:51:09,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 04:51:09,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 04:51:09,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 04:51:09,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 04:51:09,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855774575] [2023-08-27 04:51:09,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855774575] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 04:51:09,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 04:51:09,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-27 04:51:09,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647858501] [2023-08-27 04:51:09,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 04:51:09,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-27 04:51:09,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 04:51:09,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-27 04:51:09,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-27 04:51:09,640 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 183 [2023-08-27 04:51:09,642 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 16 transitions, 35 flow. Second operand has 2 states, 2 states have (on average 82.5) internal successors, (165), 2 states have internal predecessors, (165), 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) [2023-08-27 04:51:09,643 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 04:51:09,643 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 183 [2023-08-27 04:51:09,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 04:51:09,702 INFO L124 PetriNetUnfolderBase]: 24/73 cut-off events. [2023-08-27 04:51:09,702 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 04:51:09,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 73 events. 24/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 205 event pairs, 24 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 129. Up to 61 conditions per place. [2023-08-27 04:51:09,705 INFO L140 encePairwiseOnDemand]: 182/183 looper letters, 12 selfloop transitions, 0 changer transitions 0/15 dead transitions. [2023-08-27 04:51:09,705 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 15 transitions, 57 flow [2023-08-27 04:51:09,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-27 04:51:09,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-27 04:51:09,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 177 transitions. [2023-08-27 04:51:09,719 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48360655737704916 [2023-08-27 04:51:09,720 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 177 transitions. [2023-08-27 04:51:09,720 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 177 transitions. [2023-08-27 04:51:09,722 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 04:51:09,724 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 177 transitions. [2023-08-27 04:51:09,729 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 88.5) internal successors, (177), 2 states have internal predecessors, (177), 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) [2023-08-27 04:51:09,736 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 183.0) internal successors, (549), 3 states have internal predecessors, (549), 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) [2023-08-27 04:51:09,737 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 183.0) internal successors, (549), 3 states have internal predecessors, (549), 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) [2023-08-27 04:51:09,739 INFO L175 Difference]: Start difference. First operand has 20 places, 16 transitions, 35 flow. Second operand 2 states and 177 transitions. [2023-08-27 04:51:09,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 15 transitions, 57 flow [2023-08-27 04:51:09,741 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 15 transitions, 56 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 04:51:09,743 INFO L231 Difference]: Finished difference. Result has 19 places, 15 transitions, 32 flow [2023-08-27 04:51:09,745 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=32, PETRI_PLACES=19, PETRI_TRANSITIONS=15} [2023-08-27 04:51:09,748 INFO L281 CegarLoopForPetriNet]: 20 programPoint places, -1 predicate places. [2023-08-27 04:51:09,748 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 15 transitions, 32 flow [2023-08-27 04:51:09,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 82.5) internal successors, (165), 2 states have internal predecessors, (165), 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) [2023-08-27 04:51:09,749 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 04:51:09,749 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-27 04:51:09,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 04:51:09,749 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-27 04:51:09,751 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 04:51:09,751 INFO L85 PathProgramCache]: Analyzing trace with hash 11024572, now seen corresponding path program 1 times [2023-08-27 04:51:09,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 04:51:09,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540799749] [2023-08-27 04:51:09,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 04:51:09,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 04:51:09,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 04:51:09,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 04:51:09,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 04:51:09,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540799749] [2023-08-27 04:51:09,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540799749] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 04:51:09,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 04:51:09,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 04:51:09,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979361516] [2023-08-27 04:51:09,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 04:51:09,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 04:51:09,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 04:51:09,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 04:51:09,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 04:51:09,965 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 183 [2023-08-27 04:51:09,966 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 15 transitions, 32 flow. Second operand has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 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) [2023-08-27 04:51:09,966 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 04:51:09,966 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 183 [2023-08-27 04:51:09,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 04:51:09,995 INFO L124 PetriNetUnfolderBase]: 23/70 cut-off events. [2023-08-27 04:51:09,995 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 04:51:09,996 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 70 events. 23/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 191 event pairs, 14 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 133. Up to 35 conditions per place. [2023-08-27 04:51:09,996 INFO L140 encePairwiseOnDemand]: 179/183 looper letters, 13 selfloop transitions, 3 changer transitions 0/18 dead transitions. [2023-08-27 04:51:09,996 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 18 transitions, 70 flow [2023-08-27 04:51:09,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 04:51:09,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 04:51:09,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 245 transitions. [2023-08-27 04:51:09,999 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44626593806921677 [2023-08-27 04:51:09,999 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 245 transitions. [2023-08-27 04:51:09,999 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 245 transitions. [2023-08-27 04:51:09,999 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 04:51:09,999 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 245 transitions. [2023-08-27 04:51:10,000 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 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) [2023-08-27 04:51:10,001 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 183.0) internal successors, (732), 4 states have internal predecessors, (732), 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) [2023-08-27 04:51:10,002 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 183.0) internal successors, (732), 4 states have internal predecessors, (732), 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) [2023-08-27 04:51:10,002 INFO L175 Difference]: Start difference. First operand has 19 places, 15 transitions, 32 flow. Second operand 3 states and 245 transitions. [2023-08-27 04:51:10,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 18 transitions, 70 flow [2023-08-27 04:51:10,002 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 18 transitions, 70 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-27 04:51:10,003 INFO L231 Difference]: Finished difference. Result has 22 places, 15 transitions, 43 flow [2023-08-27 04:51:10,003 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=43, PETRI_PLACES=22, PETRI_TRANSITIONS=15} [2023-08-27 04:51:10,004 INFO L281 CegarLoopForPetriNet]: 20 programPoint places, 2 predicate places. [2023-08-27 04:51:10,004 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 15 transitions, 43 flow [2023-08-27 04:51:10,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 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) [2023-08-27 04:51:10,004 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 04:51:10,005 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-27 04:51:10,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-27 04:51:10,005 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-27 04:51:10,005 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 04:51:10,006 INFO L85 PathProgramCache]: Analyzing trace with hash 2014122624, now seen corresponding path program 1 times [2023-08-27 04:51:10,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 04:51:10,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148992523] [2023-08-27 04:51:10,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 04:51:10,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 04:51:10,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 04:51:10,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 04:51:10,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 04:51:10,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148992523] [2023-08-27 04:51:10,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148992523] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 04:51:10,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 04:51:10,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 04:51:10,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434642910] [2023-08-27 04:51:10,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 04:51:10,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 04:51:10,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 04:51:10,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 04:51:10,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 04:51:10,109 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 183 [2023-08-27 04:51:10,110 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 15 transitions, 43 flow. Second operand has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 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) [2023-08-27 04:51:10,110 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 04:51:10,110 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 183 [2023-08-27 04:51:10,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 04:51:10,158 INFO L124 PetriNetUnfolderBase]: 20/65 cut-off events. [2023-08-27 04:51:10,158 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2023-08-27 04:51:10,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 65 events. 20/65 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 181 event pairs, 6 based on Foata normal form. 4/64 useless extension candidates. Maximal degree in co-relation 143. Up to 34 conditions per place. [2023-08-27 04:51:10,159 INFO L140 encePairwiseOnDemand]: 177/183 looper letters, 11 selfloop transitions, 5 changer transitions 5/22 dead transitions. [2023-08-27 04:51:10,159 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 22 transitions, 102 flow [2023-08-27 04:51:10,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 04:51:10,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 04:51:10,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 227 transitions. [2023-08-27 04:51:10,163 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4134790528233151 [2023-08-27 04:51:10,163 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 227 transitions. [2023-08-27 04:51:10,163 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 227 transitions. [2023-08-27 04:51:10,163 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 04:51:10,163 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 227 transitions. [2023-08-27 04:51:10,165 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 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) [2023-08-27 04:51:10,167 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 183.0) internal successors, (732), 4 states have internal predecessors, (732), 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) [2023-08-27 04:51:10,167 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 183.0) internal successors, (732), 4 states have internal predecessors, (732), 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) [2023-08-27 04:51:10,167 INFO L175 Difference]: Start difference. First operand has 22 places, 15 transitions, 43 flow. Second operand 3 states and 227 transitions. [2023-08-27 04:51:10,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 22 transitions, 102 flow [2023-08-27 04:51:10,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 22 transitions, 94 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 04:51:10,169 INFO L231 Difference]: Finished difference. Result has 23 places, 15 transitions, 54 flow [2023-08-27 04:51:10,169 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=37, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=54, PETRI_PLACES=23, PETRI_TRANSITIONS=15} [2023-08-27 04:51:10,170 INFO L281 CegarLoopForPetriNet]: 20 programPoint places, 3 predicate places. [2023-08-27 04:51:10,173 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 15 transitions, 54 flow [2023-08-27 04:51:10,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 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) [2023-08-27 04:51:10,174 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 04:51:10,174 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-27 04:51:10,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-27 04:51:10,174 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-27 04:51:10,175 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 04:51:10,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1983254373, now seen corresponding path program 1 times [2023-08-27 04:51:10,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 04:51:10,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368876981] [2023-08-27 04:51:10,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 04:51:10,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 04:51:10,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 04:51:10,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 04:51:10,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 04:51:10,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368876981] [2023-08-27 04:51:10,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368876981] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 04:51:10,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 04:51:10,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 04:51:10,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024940427] [2023-08-27 04:51:10,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 04:51:10,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 04:51:10,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 04:51:10,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 04:51:10,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 04:51:10,270 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 183 [2023-08-27 04:51:10,270 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 15 transitions, 54 flow. Second operand has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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) [2023-08-27 04:51:10,271 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 04:51:10,271 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 183 [2023-08-27 04:51:10,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 04:51:10,295 INFO L124 PetriNetUnfolderBase]: 9/40 cut-off events. [2023-08-27 04:51:10,295 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2023-08-27 04:51:10,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 40 events. 9/40 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 78 event pairs, 5 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 107. Up to 22 conditions per place. [2023-08-27 04:51:10,296 INFO L140 encePairwiseOnDemand]: 180/183 looper letters, 8 selfloop transitions, 2 changer transitions 5/17 dead transitions. [2023-08-27 04:51:10,296 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 17 transitions, 94 flow [2023-08-27 04:51:10,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 04:51:10,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 04:51:10,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 244 transitions. [2023-08-27 04:51:10,297 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4444444444444444 [2023-08-27 04:51:10,297 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 244 transitions. [2023-08-27 04:51:10,297 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 244 transitions. [2023-08-27 04:51:10,298 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 04:51:10,298 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 244 transitions. [2023-08-27 04:51:10,299 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 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) [2023-08-27 04:51:10,300 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 183.0) internal successors, (732), 4 states have internal predecessors, (732), 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) [2023-08-27 04:51:10,300 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 183.0) internal successors, (732), 4 states have internal predecessors, (732), 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) [2023-08-27 04:51:10,300 INFO L175 Difference]: Start difference. First operand has 23 places, 15 transitions, 54 flow. Second operand 3 states and 244 transitions. [2023-08-27 04:51:10,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 17 transitions, 94 flow [2023-08-27 04:51:10,301 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 17 transitions, 85 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-27 04:51:10,302 INFO L231 Difference]: Finished difference. Result has 23 places, 12 transitions, 43 flow [2023-08-27 04:51:10,302 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=45, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=43, PETRI_PLACES=23, PETRI_TRANSITIONS=12} [2023-08-27 04:51:10,302 INFO L281 CegarLoopForPetriNet]: 20 programPoint places, 3 predicate places. [2023-08-27 04:51:10,302 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 12 transitions, 43 flow [2023-08-27 04:51:10,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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) [2023-08-27 04:51:10,303 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 04:51:10,303 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 04:51:10,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-27 04:51:10,303 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-27 04:51:10,304 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 04:51:10,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1351343089, now seen corresponding path program 1 times [2023-08-27 04:51:10,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 04:51:10,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245491667] [2023-08-27 04:51:10,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 04:51:10,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 04:51:10,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 04:51:10,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 04:51:10,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 04:51:10,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245491667] [2023-08-27 04:51:10,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245491667] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 04:51:10,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 04:51:10,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 04:51:10,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49966842] [2023-08-27 04:51:10,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 04:51:10,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 04:51:10,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 04:51:10,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 04:51:10,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-27 04:51:10,409 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 183 [2023-08-27 04:51:10,409 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 12 transitions, 43 flow. Second operand has 5 states, 5 states have (on average 63.4) internal successors, (317), 5 states have internal predecessors, (317), 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) [2023-08-27 04:51:10,410 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 04:51:10,410 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 183 [2023-08-27 04:51:10,410 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 04:51:10,426 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2023-08-27 04:51:10,427 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-08-27 04:51:10,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31 conditions, 9 events. 0/9 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 1 event pairs, 0 based on Foata normal form. 3/12 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2023-08-27 04:51:10,427 INFO L140 encePairwiseOnDemand]: 180/183 looper letters, 0 selfloop transitions, 0 changer transitions 9/9 dead transitions. [2023-08-27 04:51:10,427 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 9 transitions, 49 flow [2023-08-27 04:51:10,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 04:51:10,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 04:51:10,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 257 transitions. [2023-08-27 04:51:10,431 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3510928961748634 [2023-08-27 04:51:10,431 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 257 transitions. [2023-08-27 04:51:10,431 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 257 transitions. [2023-08-27 04:51:10,431 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 04:51:10,431 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 257 transitions. [2023-08-27 04:51:10,432 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 64.25) internal successors, (257), 4 states have internal predecessors, (257), 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) [2023-08-27 04:51:10,433 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 183.0) internal successors, (915), 5 states have internal predecessors, (915), 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) [2023-08-27 04:51:10,434 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 183.0) internal successors, (915), 5 states have internal predecessors, (915), 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) [2023-08-27 04:51:10,434 INFO L175 Difference]: Start difference. First operand has 23 places, 12 transitions, 43 flow. Second operand 4 states and 257 transitions. [2023-08-27 04:51:10,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 9 transitions, 49 flow [2023-08-27 04:51:10,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 9 transitions, 39 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-27 04:51:10,434 INFO L231 Difference]: Finished difference. Result has 17 places, 0 transitions, 0 flow [2023-08-27 04:51:10,435 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=23, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=9, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=17, PETRI_TRANSITIONS=0} [2023-08-27 04:51:10,435 INFO L281 CegarLoopForPetriNet]: 20 programPoint places, -3 predicate places. [2023-08-27 04:51:10,435 INFO L495 AbstractCegarLoop]: Abstraction has has 17 places, 0 transitions, 0 flow [2023-08-27 04:51:10,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 63.4) internal successors, (317), 5 states have internal predecessors, (317), 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) [2023-08-27 04:51:10,438 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (4 of 5 remaining) [2023-08-27 04:51:10,439 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONASSERT (3 of 5 remaining) [2023-08-27 04:51:10,439 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2023-08-27 04:51:10,439 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONASSERT (1 of 5 remaining) [2023-08-27 04:51:10,439 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONASSERT (0 of 5 remaining) [2023-08-27 04:51:10,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-27 04:51:10,440 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-08-27 04:51:10,444 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 04:51:10,444 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 04:51:10,447 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 04:51:10 BasicIcfg [2023-08-27 04:51:10,447 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 04:51:10,448 INFO L158 Benchmark]: Toolchain (without parser) took 5024.03ms. Allocated memory was 352.3MB in the beginning and 423.6MB in the end (delta: 71.3MB). Free memory was 327.7MB in the beginning and 267.7MB in the end (delta: 60.0MB). Peak memory consumption was 132.8MB. Max. memory is 16.0GB. [2023-08-27 04:51:10,448 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 352.3MB. Free memory is still 328.8MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 04:51:10,448 INFO L158 Benchmark]: CACSL2BoogieTranslator took 496.49ms. Allocated memory is still 352.3MB. Free memory was 327.7MB in the beginning and 308.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-27 04:51:10,449 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.40ms. Allocated memory is still 352.3MB. Free memory was 308.3MB in the beginning and 306.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 04:51:10,449 INFO L158 Benchmark]: Boogie Preprocessor took 34.01ms. Allocated memory is still 352.3MB. Free memory was 306.7MB in the beginning and 305.1MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 04:51:10,449 INFO L158 Benchmark]: RCFGBuilder took 432.26ms. Allocated memory is still 352.3MB. Free memory was 305.1MB in the beginning and 291.0MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-08-27 04:51:10,450 INFO L158 Benchmark]: TraceAbstraction took 3995.27ms. Allocated memory was 352.3MB in the beginning and 423.6MB in the end (delta: 71.3MB). Free memory was 290.4MB in the beginning and 267.7MB in the end (delta: 22.7MB). Peak memory consumption was 97.2MB. Max. memory is 16.0GB. [2023-08-27 04:51:10,451 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 352.3MB. Free memory is still 328.8MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 496.49ms. Allocated memory is still 352.3MB. Free memory was 327.7MB in the beginning and 308.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 60.40ms. Allocated memory is still 352.3MB. Free memory was 308.3MB in the beginning and 306.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 34.01ms. Allocated memory is still 352.3MB. Free memory was 306.7MB in the beginning and 305.1MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 432.26ms. Allocated memory is still 352.3MB. Free memory was 305.1MB in the beginning and 291.0MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 3995.27ms. Allocated memory was 352.3MB in the beginning and 423.6MB in the end (delta: 71.3MB). Free memory was 290.4MB in the beginning and 267.7MB in the end (delta: 22.7MB). Peak memory consumption was 97.2MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 231]: Unsoundness Warning unspecified type, defaulting to int C: short [231] - GenericResultAtLocation [Line: 232]: Unsoundness Warning unspecified type, defaulting to int C: short [232] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.8s, 83 PlacesBefore, 20 PlacesAfterwards, 85 TransitionsBefore, 16 TransitionsAfterwards, 936 CoEnabledTransitionPairs, 6 FixpointIterations, 40 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 9 ConcurrentYvCompositions, 6 ChoiceCompositions, 90 TotalNumberOfCompositions, 1717 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1118, independent: 988, independent conditional: 0, independent unconditional: 988, dependent: 130, dependent conditional: 0, dependent unconditional: 130, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 562, independent: 520, independent conditional: 0, independent unconditional: 520, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1118, independent: 468, independent conditional: 0, independent unconditional: 468, dependent: 88, dependent conditional: 0, dependent unconditional: 88, unknown: 562, unknown conditional: 0, unknown unconditional: 562] , Statistics on independence cache: Total cache size (in pairs): 32, Positive cache size: 15, Positive conditional cache size: 0, Positive unconditional cache size: 15, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 18]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 18]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 18]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 114 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: 3.9s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 94 IncrementalHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 3 mSDtfsCounter, 94 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred in iteration=3, InterpolantAutomatonStates: 15, 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, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 83 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-27 04:51:10,470 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...