/usr/bin/java -Xmx8000000000 -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-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-?-3902331-m [2022-09-20 22:36:57,718 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-20 22:36:57,719 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-20 22:36:57,745 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-20 22:36:57,746 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-20 22:36:57,746 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-20 22:36:57,751 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-20 22:36:57,755 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-20 22:36:57,756 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-20 22:36:57,772 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-20 22:36:57,773 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-20 22:36:57,773 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-20 22:36:57,774 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-20 22:36:57,774 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-20 22:36:57,775 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-20 22:36:57,775 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-20 22:36:57,776 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-20 22:36:57,776 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-20 22:36:57,777 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-20 22:36:57,778 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-20 22:36:57,779 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-20 22:36:57,780 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-20 22:36:57,780 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-20 22:36:57,781 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-20 22:36:57,783 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-20 22:36:57,789 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-20 22:36:57,790 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-20 22:36:57,790 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-20 22:36:57,792 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-09-20 22:36:57,834 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-20 22:36:57,835 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-20 22:36:57,835 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-20 22:36:57,835 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-20 22:36:57,836 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-20 22:36:57,836 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-20 22:36:57,836 INFO L138 SettingsManager]: * Use SBE=true [2022-09-20 22:36:57,836 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-20 22:36:57,836 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-20 22:36:57,836 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-20 22:36:57,836 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-20 22:36:57,837 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-20 22:36:57,837 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-20 22:36:57,837 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-20 22:36:57,837 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-20 22:36:57,837 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-20 22:36:57,837 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-20 22:36:57,837 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-20 22:36:57,837 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-20 22:36:57,837 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-20 22:36:57,837 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-20 22:36:57,838 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-20 22:36:57,838 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-20 22:36:57,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-20 22:36:57,838 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-20 22:36:57,838 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-20 22:36:57,838 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-20 22:36:57,838 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-20 22:36:57,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-20 22:36:57,838 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-20 22:36:57,838 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-20 22:36:57,839 INFO L138 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-20 22:36:58,038 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-20 22:36:58,062 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-20 22:36:58,064 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-20 22:36:58,064 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-20 22:36:58,065 INFO L275 PluginConnector]: CDTParser initialized [2022-09-20 22:36:58,066 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i [2022-09-20 22:36:58,126 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70859263d/f63cc8cfcf37403ca0f4f41ce581418c/FLAG2bf29bce3 [2022-09-20 22:36:58,569 INFO L306 CDTParser]: Found 1 translation units. [2022-09-20 22:36:58,569 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i [2022-09-20 22:36:58,585 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70859263d/f63cc8cfcf37403ca0f4f41ce581418c/FLAG2bf29bce3 [2022-09-20 22:36:58,602 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70859263d/f63cc8cfcf37403ca0f4f41ce581418c [2022-09-20 22:36:58,604 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-20 22:36:58,606 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-20 22:36:58,609 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-20 22:36:58,609 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-20 22:36:58,611 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-20 22:36:58,612 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 10:36:58" (1/1) ... [2022-09-20 22:36:58,613 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d51643e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:36:58, skipping insertion in model container [2022-09-20 22:36:58,613 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 10:36:58" (1/1) ... [2022-09-20 22:36:58,617 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-20 22:36:58,668 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-20 22:36:58,808 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i[1084,1097] [2022-09-20 22:36:58,940 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-20 22:36:58,950 INFO L203 MainTranslator]: Completed pre-run [2022-09-20 22:36:58,960 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i[1084,1097] [2022-09-20 22:36:58,991 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-20 22:36:59,017 INFO L208 MainTranslator]: Completed translation [2022-09-20 22:36:59,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:36:59 WrapperNode [2022-09-20 22:36:59,018 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-20 22:36:59,019 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-20 22:36:59,020 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-20 22:36:59,020 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-20 22:36:59,025 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:36:59" (1/1) ... [2022-09-20 22:36:59,047 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:36:59" (1/1) ... [2022-09-20 22:36:59,067 INFO L138 Inliner]: procedures = 162, calls = 24, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 84 [2022-09-20 22:36:59,067 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-20 22:36:59,068 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-20 22:36:59,068 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-20 22:36:59,068 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-20 22:36:59,073 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:36:59" (1/1) ... [2022-09-20 22:36:59,073 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:36:59" (1/1) ... [2022-09-20 22:36:59,078 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:36:59" (1/1) ... [2022-09-20 22:36:59,079 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:36:59" (1/1) ... [2022-09-20 22:36:59,091 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:36:59" (1/1) ... [2022-09-20 22:36:59,092 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:36:59" (1/1) ... [2022-09-20 22:36:59,098 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:36:59" (1/1) ... [2022-09-20 22:36:59,099 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-20 22:36:59,100 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-20 22:36:59,100 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-20 22:36:59,100 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-20 22:36:59,104 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:36:59" (1/1) ... [2022-09-20 22:36:59,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-20 22:36:59,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-20 22:36:59,156 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) [2022-09-20 22:36:59,200 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 [2022-09-20 22:36:59,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-20 22:36:59,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-20 22:36:59,223 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-09-20 22:36:59,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-20 22:36:59,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-20 22:36:59,223 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-09-20 22:36:59,223 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-09-20 22:36:59,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-20 22:36:59,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-20 22:36:59,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-20 22:36:59,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-20 22:36:59,225 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-20 22:36:59,356 INFO L234 CfgBuilder]: Building ICFG [2022-09-20 22:36:59,357 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-20 22:36:59,478 INFO L275 CfgBuilder]: Performing block encoding [2022-09-20 22:36:59,486 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-20 22:36:59,487 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-20 22:36:59,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 10:36:59 BoogieIcfgContainer [2022-09-20 22:36:59,488 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-20 22:36:59,490 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-20 22:36:59,490 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-20 22:36:59,492 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-20 22:36:59,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 10:36:58" (1/3) ... [2022-09-20 22:36:59,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77b25998 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 10:36:59, skipping insertion in model container [2022-09-20 22:36:59,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:36:59" (2/3) ... [2022-09-20 22:36:59,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77b25998 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 10:36:59, skipping insertion in model container [2022-09-20 22:36:59,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 10:36:59" (3/3) ... [2022-09-20 22:36:59,494 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_01-priv_nr_true.i [2022-09-20 22:36:59,506 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-20 22:36:59,507 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-09-20 22:36:59,507 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-20 22:36:59,552 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-09-20 22:36:59,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 105 places, 105 transitions, 218 flow [2022-09-20 22:36:59,650 INFO L130 PetriNetUnfolder]: 4/104 cut-off events. [2022-09-20 22:36:59,650 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-09-20 22:36:59,654 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 104 events. 4/104 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 83 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2022-09-20 22:36:59,654 INFO L82 GeneralOperation]: Start removeDead. Operand has 105 places, 105 transitions, 218 flow [2022-09-20 22:36:59,659 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 96 places, 96 transitions, 195 flow [2022-09-20 22:36:59,673 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-20 22:36:59,679 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;@75baed3c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-20 22:36:59,679 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-09-20 22:36:59,697 INFO L130 PetriNetUnfolder]: 1/39 cut-off events. [2022-09-20 22:36:59,698 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-20 22:36:59,698 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:36:59,698 INFO L208 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] [2022-09-20 22:36:59,699 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-09-20 22:36:59,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:36:59,704 INFO L85 PathProgramCache]: Analyzing trace with hash -117580950, now seen corresponding path program 1 times [2022-09-20 22:36:59,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:36:59,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120894797] [2022-09-20 22:36:59,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:36:59,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:36:59,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:36:59,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:36:59,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:36:59,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120894797] [2022-09-20 22:36:59,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120894797] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:36:59,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:36:59,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-20 22:36:59,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858555276] [2022-09-20 22:36:59,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:36:59,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-20 22:36:59,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:37:00,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-20 22:37:00,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-09-20 22:37:00,012 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 105 [2022-09-20 22:37:00,020 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 96 transitions, 195 flow. Second operand has 5 states, 5 states have (on average 77.0) internal successors, (385), 5 states have internal predecessors, (385), 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) [2022-09-20 22:37:00,020 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:37:00,020 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 105 [2022-09-20 22:37:00,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:37:00,145 INFO L130 PetriNetUnfolder]: 36/209 cut-off events. [2022-09-20 22:37:00,145 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-09-20 22:37:00,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 305 conditions, 209 events. 36/209 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 796 event pairs, 4 based on Foata normal form. 25/223 useless extension candidates. Maximal degree in co-relation 254. Up to 36 conditions per place. [2022-09-20 22:37:00,147 INFO L137 encePairwiseOnDemand]: 93/105 looper letters, 23 selfloop transitions, 8 changer transitions 0/98 dead transitions. [2022-09-20 22:37:00,148 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 98 transitions, 261 flow [2022-09-20 22:37:00,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-20 22:37:00,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-09-20 22:37:00,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 572 transitions. [2022-09-20 22:37:00,166 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7782312925170068 [2022-09-20 22:37:00,166 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 572 transitions. [2022-09-20 22:37:00,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 572 transitions. [2022-09-20 22:37:00,169 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:37:00,171 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 572 transitions. [2022-09-20 22:37:00,175 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 81.71428571428571) internal successors, (572), 7 states have internal predecessors, (572), 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) [2022-09-20 22:37:00,185 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 105.0) internal successors, (840), 8 states have internal predecessors, (840), 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) [2022-09-20 22:37:00,186 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 105.0) internal successors, (840), 8 states have internal predecessors, (840), 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) [2022-09-20 22:37:00,187 INFO L175 Difference]: Start difference. First operand has 96 places, 96 transitions, 195 flow. Second operand 7 states and 572 transitions. [2022-09-20 22:37:00,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 98 transitions, 261 flow [2022-09-20 22:37:00,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 98 transitions, 260 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-20 22:37:00,196 INFO L231 Difference]: Finished difference. Result has 96 places, 88 transitions, 201 flow [2022-09-20 22:37:00,197 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=201, PETRI_PLACES=96, PETRI_TRANSITIONS=88} [2022-09-20 22:37:00,200 INFO L287 CegarLoopForPetriNet]: 96 programPoint places, 0 predicate places. [2022-09-20 22:37:00,200 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 88 transitions, 201 flow [2022-09-20 22:37:00,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 77.0) internal successors, (385), 5 states have internal predecessors, (385), 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) [2022-09-20 22:37:00,200 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:37:00,201 INFO L208 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] [2022-09-20 22:37:00,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-20 22:37:00,201 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-09-20 22:37:00,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:37:00,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1221049129, now seen corresponding path program 1 times [2022-09-20 22:37:00,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:37:00,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40183662] [2022-09-20 22:37:00,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:37:00,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:37:00,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:37:00,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:37:00,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:37:00,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40183662] [2022-09-20 22:37:00,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40183662] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:37:00,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:37:00,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-09-20 22:37:00,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141245574] [2022-09-20 22:37:00,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:37:00,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-20 22:37:00,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:37:00,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-20 22:37:00,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-09-20 22:37:00,344 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 105 [2022-09-20 22:37:00,344 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 88 transitions, 201 flow. Second operand has 6 states, 6 states have (on average 75.5) internal successors, (453), 6 states have internal predecessors, (453), 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) [2022-09-20 22:37:00,344 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:37:00,344 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 105 [2022-09-20 22:37:00,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:37:00,581 INFO L130 PetriNetUnfolder]: 99/483 cut-off events. [2022-09-20 22:37:00,582 INFO L131 PetriNetUnfolder]: For 52/52 co-relation queries the response was YES. [2022-09-20 22:37:00,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 814 conditions, 483 events. 99/483 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2749 event pairs, 31 based on Foata normal form. 0/465 useless extension candidates. Maximal degree in co-relation 762. Up to 69 conditions per place. [2022-09-20 22:37:00,584 INFO L137 encePairwiseOnDemand]: 92/105 looper letters, 51 selfloop transitions, 19 changer transitions 2/136 dead transitions. [2022-09-20 22:37:00,585 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 136 transitions, 470 flow [2022-09-20 22:37:00,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-09-20 22:37:00,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-09-20 22:37:00,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 962 transitions. [2022-09-20 22:37:00,587 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7634920634920634 [2022-09-20 22:37:00,587 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 962 transitions. [2022-09-20 22:37:00,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 962 transitions. [2022-09-20 22:37:00,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:37:00,587 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 962 transitions. [2022-09-20 22:37:00,589 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 80.16666666666667) internal successors, (962), 12 states have internal predecessors, (962), 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) [2022-09-20 22:37:00,590 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 105.0) internal successors, (1365), 13 states have internal predecessors, (1365), 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) [2022-09-20 22:37:00,591 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 105.0) internal successors, (1365), 13 states have internal predecessors, (1365), 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) [2022-09-20 22:37:00,591 INFO L175 Difference]: Start difference. First operand has 96 places, 88 transitions, 201 flow. Second operand 12 states and 962 transitions. [2022-09-20 22:37:00,591 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 136 transitions, 470 flow [2022-09-20 22:37:00,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 136 transitions, 442 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-09-20 22:37:00,594 INFO L231 Difference]: Finished difference. Result has 108 places, 102 transitions, 304 flow [2022-09-20 22:37:00,594 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=304, PETRI_PLACES=108, PETRI_TRANSITIONS=102} [2022-09-20 22:37:00,595 INFO L287 CegarLoopForPetriNet]: 96 programPoint places, 12 predicate places. [2022-09-20 22:37:00,595 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 102 transitions, 304 flow [2022-09-20 22:37:00,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 75.5) internal successors, (453), 6 states have internal predecessors, (453), 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) [2022-09-20 22:37:00,595 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:37:00,595 INFO L208 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] [2022-09-20 22:37:00,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-20 22:37:00,596 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-09-20 22:37:00,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:37:00,596 INFO L85 PathProgramCache]: Analyzing trace with hash 886861433, now seen corresponding path program 1 times [2022-09-20 22:37:00,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:37:00,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97439074] [2022-09-20 22:37:00,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:37:00,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:37:00,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:37:00,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:37:00,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:37:00,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97439074] [2022-09-20 22:37:00,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97439074] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:37:00,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:37:00,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-20 22:37:00,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303689886] [2022-09-20 22:37:00,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:37:00,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-20 22:37:00,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:37:00,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-20 22:37:00,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-09-20 22:37:00,684 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 105 [2022-09-20 22:37:00,685 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 102 transitions, 304 flow. Second operand has 7 states, 7 states have (on average 76.0) internal successors, (532), 7 states have internal predecessors, (532), 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) [2022-09-20 22:37:00,685 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:37:00,685 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 105 [2022-09-20 22:37:00,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:37:00,885 INFO L130 PetriNetUnfolder]: 94/588 cut-off events. [2022-09-20 22:37:00,885 INFO L131 PetriNetUnfolder]: For 281/305 co-relation queries the response was YES. [2022-09-20 22:37:00,889 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1153 conditions, 588 events. 94/588 cut-off events. For 281/305 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 4036 event pairs, 6 based on Foata normal form. 10/586 useless extension candidates. Maximal degree in co-relation 1092. Up to 96 conditions per place. [2022-09-20 22:37:00,892 INFO L137 encePairwiseOnDemand]: 91/105 looper letters, 46 selfloop transitions, 26 changer transitions 4/148 dead transitions. [2022-09-20 22:37:00,892 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 148 transitions, 655 flow [2022-09-20 22:37:00,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-09-20 22:37:00,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-09-20 22:37:00,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1025 transitions. [2022-09-20 22:37:00,894 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7509157509157509 [2022-09-20 22:37:00,895 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1025 transitions. [2022-09-20 22:37:00,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1025 transitions. [2022-09-20 22:37:00,895 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:37:00,895 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1025 transitions. [2022-09-20 22:37:00,897 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 78.84615384615384) internal successors, (1025), 13 states have internal predecessors, (1025), 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) [2022-09-20 22:37:00,900 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 105.0) internal successors, (1470), 14 states have internal predecessors, (1470), 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) [2022-09-20 22:37:00,900 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 105.0) internal successors, (1470), 14 states have internal predecessors, (1470), 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) [2022-09-20 22:37:00,900 INFO L175 Difference]: Start difference. First operand has 108 places, 102 transitions, 304 flow. Second operand 13 states and 1025 transitions. [2022-09-20 22:37:00,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 148 transitions, 655 flow [2022-09-20 22:37:00,903 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 148 transitions, 651 flow, removed 2 selfloop flow, removed 0 redundant places. [2022-09-20 22:37:00,905 INFO L231 Difference]: Finished difference. Result has 127 places, 119 transitions, 478 flow [2022-09-20 22:37:00,906 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=478, PETRI_PLACES=127, PETRI_TRANSITIONS=119} [2022-09-20 22:37:00,906 INFO L287 CegarLoopForPetriNet]: 96 programPoint places, 31 predicate places. [2022-09-20 22:37:00,906 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 119 transitions, 478 flow [2022-09-20 22:37:00,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 76.0) internal successors, (532), 7 states have internal predecessors, (532), 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) [2022-09-20 22:37:00,907 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:37:00,907 INFO L208 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] [2022-09-20 22:37:00,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-20 22:37:00,907 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-09-20 22:37:00,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:37:00,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1727414941, now seen corresponding path program 1 times [2022-09-20 22:37:00,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:37:00,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350036435] [2022-09-20 22:37:00,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:37:00,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:37:00,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:37:00,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:37:00,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:37:00,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350036435] [2022-09-20 22:37:00,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350036435] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:37:00,938 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:37:00,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-20 22:37:00,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551770824] [2022-09-20 22:37:00,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:37:00,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-20 22:37:00,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:37:00,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-20 22:37:00,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-20 22:37:00,939 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 105 [2022-09-20 22:37:00,939 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 119 transitions, 478 flow. Second operand has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 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) [2022-09-20 22:37:00,940 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:37:00,940 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 105 [2022-09-20 22:37:00,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:37:00,966 INFO L130 PetriNetUnfolder]: 0/124 cut-off events. [2022-09-20 22:37:00,966 INFO L131 PetriNetUnfolder]: For 47/47 co-relation queries the response was YES. [2022-09-20 22:37:00,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 230 conditions, 124 events. 0/124 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 114 event pairs, 0 based on Foata normal form. 2/126 useless extension candidates. Maximal degree in co-relation 0. Up to 12 conditions per place. [2022-09-20 22:37:00,967 INFO L137 encePairwiseOnDemand]: 101/105 looper letters, 7 selfloop transitions, 4 changer transitions 4/103 dead transitions. [2022-09-20 22:37:00,967 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 103 transitions, 374 flow [2022-09-20 22:37:00,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-20 22:37:00,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-09-20 22:37:00,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 268 transitions. [2022-09-20 22:37:00,968 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8507936507936508 [2022-09-20 22:37:00,968 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 268 transitions. [2022-09-20 22:37:00,968 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 268 transitions. [2022-09-20 22:37:00,968 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:37:00,968 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 268 transitions. [2022-09-20 22:37:00,969 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 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) [2022-09-20 22:37:00,970 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 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) [2022-09-20 22:37:00,970 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 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) [2022-09-20 22:37:00,970 INFO L175 Difference]: Start difference. First operand has 127 places, 119 transitions, 478 flow. Second operand 3 states and 268 transitions. [2022-09-20 22:37:00,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 103 transitions, 374 flow [2022-09-20 22:37:00,974 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 103 transitions, 340 flow, removed 9 selfloop flow, removed 8 redundant places. [2022-09-20 22:37:00,975 INFO L231 Difference]: Finished difference. Result has 118 places, 99 transitions, 308 flow [2022-09-20 22:37:00,976 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=308, PETRI_PLACES=118, PETRI_TRANSITIONS=99} [2022-09-20 22:37:00,977 INFO L287 CegarLoopForPetriNet]: 96 programPoint places, 22 predicate places. [2022-09-20 22:37:00,977 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 99 transitions, 308 flow [2022-09-20 22:37:00,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 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) [2022-09-20 22:37:00,977 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:37:00,977 INFO L208 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] [2022-09-20 22:37:00,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-20 22:37:00,978 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-09-20 22:37:00,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:37:00,981 INFO L85 PathProgramCache]: Analyzing trace with hash -33373823, now seen corresponding path program 1 times [2022-09-20 22:37:00,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:37:00,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226461078] [2022-09-20 22:37:00,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:37:00,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:37:00,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:37:01,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:37:01,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:37:01,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226461078] [2022-09-20 22:37:01,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226461078] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:37:01,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:37:01,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-20 22:37:01,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812806429] [2022-09-20 22:37:01,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:37:01,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-20 22:37:01,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:37:01,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-20 22:37:01,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-09-20 22:37:01,021 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 105 [2022-09-20 22:37:01,021 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 99 transitions, 308 flow. Second operand has 5 states, 5 states have (on average 77.6) internal successors, (388), 5 states have internal predecessors, (388), 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) [2022-09-20 22:37:01,021 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:37:01,021 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 105 [2022-09-20 22:37:01,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:37:01,064 INFO L130 PetriNetUnfolder]: 0/107 cut-off events. [2022-09-20 22:37:01,064 INFO L131 PetriNetUnfolder]: For 36/36 co-relation queries the response was YES. [2022-09-20 22:37:01,064 INFO L83 FinitePrefix]: Finished finitePrefix Result has 209 conditions, 107 events. 0/107 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 78 event pairs, 0 based on Foata normal form. 2/109 useless extension candidates. Maximal degree in co-relation 0. Up to 18 conditions per place. [2022-09-20 22:37:01,065 INFO L137 encePairwiseOnDemand]: 98/105 looper letters, 20 selfloop transitions, 6 changer transitions 4/97 dead transitions. [2022-09-20 22:37:01,065 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 97 transitions, 364 flow [2022-09-20 22:37:01,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-20 22:37:01,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-09-20 22:37:01,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 549 transitions. [2022-09-20 22:37:01,066 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.746938775510204 [2022-09-20 22:37:01,066 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 549 transitions. [2022-09-20 22:37:01,066 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 549 transitions. [2022-09-20 22:37:01,066 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:37:01,066 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 549 transitions. [2022-09-20 22:37:01,067 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 78.42857142857143) internal successors, (549), 7 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) [2022-09-20 22:37:01,068 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 105.0) internal successors, (840), 8 states have internal predecessors, (840), 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) [2022-09-20 22:37:01,068 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 105.0) internal successors, (840), 8 states have internal predecessors, (840), 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) [2022-09-20 22:37:01,069 INFO L175 Difference]: Start difference. First operand has 118 places, 99 transitions, 308 flow. Second operand 7 states and 549 transitions. [2022-09-20 22:37:01,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 97 transitions, 364 flow [2022-09-20 22:37:01,070 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 97 transitions, 355 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-09-20 22:37:01,071 INFO L231 Difference]: Finished difference. Result has 120 places, 93 transitions, 289 flow [2022-09-20 22:37:01,071 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=295, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=289, PETRI_PLACES=120, PETRI_TRANSITIONS=93} [2022-09-20 22:37:01,072 INFO L287 CegarLoopForPetriNet]: 96 programPoint places, 24 predicate places. [2022-09-20 22:37:01,072 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 93 transitions, 289 flow [2022-09-20 22:37:01,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 77.6) internal successors, (388), 5 states have internal predecessors, (388), 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) [2022-09-20 22:37:01,072 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:37:01,072 INFO L208 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] [2022-09-20 22:37:01,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-20 22:37:01,072 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-09-20 22:37:01,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:37:01,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1112830484, now seen corresponding path program 1 times [2022-09-20 22:37:01,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:37:01,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668258100] [2022-09-20 22:37:01,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:37:01,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:37:01,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:37:01,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:37:01,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:37:01,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668258100] [2022-09-20 22:37:01,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668258100] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:37:01,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:37:01,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-09-20 22:37:01,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907756152] [2022-09-20 22:37:01,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:37:01,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-09-20 22:37:01,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:37:01,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-09-20 22:37:01,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-09-20 22:37:01,229 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 105 [2022-09-20 22:37:01,229 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 93 transitions, 289 flow. Second operand has 9 states, 9 states have (on average 72.88888888888889) internal successors, (656), 9 states have internal predecessors, (656), 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) [2022-09-20 22:37:01,229 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:37:01,229 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 105 [2022-09-20 22:37:01,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:37:01,425 INFO L130 PetriNetUnfolder]: 7/117 cut-off events. [2022-09-20 22:37:01,425 INFO L131 PetriNetUnfolder]: For 43/43 co-relation queries the response was YES. [2022-09-20 22:37:01,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 239 conditions, 117 events. 7/117 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 134 event pairs, 1 based on Foata normal form. 1/117 useless extension candidates. Maximal degree in co-relation 177. Up to 8 conditions per place. [2022-09-20 22:37:01,426 INFO L137 encePairwiseOnDemand]: 89/105 looper letters, 8 selfloop transitions, 12 changer transitions 21/96 dead transitions. [2022-09-20 22:37:01,426 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 96 transitions, 363 flow [2022-09-20 22:37:01,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-09-20 22:37:01,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-09-20 22:37:01,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1311 transitions. [2022-09-20 22:37:01,447 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6936507936507936 [2022-09-20 22:37:01,447 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1311 transitions. [2022-09-20 22:37:01,447 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1311 transitions. [2022-09-20 22:37:01,448 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:37:01,448 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1311 transitions. [2022-09-20 22:37:01,450 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 72.83333333333333) internal successors, (1311), 18 states have internal predecessors, (1311), 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) [2022-09-20 22:37:01,452 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 105.0) internal successors, (1995), 19 states have internal predecessors, (1995), 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) [2022-09-20 22:37:01,452 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 105.0) internal successors, (1995), 19 states have internal predecessors, (1995), 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) [2022-09-20 22:37:01,453 INFO L175 Difference]: Start difference. First operand has 120 places, 93 transitions, 289 flow. Second operand 18 states and 1311 transitions. [2022-09-20 22:37:01,453 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 96 transitions, 363 flow [2022-09-20 22:37:01,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 96 transitions, 337 flow, removed 0 selfloop flow, removed 11 redundant places. [2022-09-20 22:37:01,454 INFO L231 Difference]: Finished difference. Result has 123 places, 75 transitions, 216 flow [2022-09-20 22:37:01,455 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=257, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=216, PETRI_PLACES=123, PETRI_TRANSITIONS=75} [2022-09-20 22:37:01,455 INFO L287 CegarLoopForPetriNet]: 96 programPoint places, 27 predicate places. [2022-09-20 22:37:01,455 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 75 transitions, 216 flow [2022-09-20 22:37:01,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 72.88888888888889) internal successors, (656), 9 states have internal predecessors, (656), 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) [2022-09-20 22:37:01,456 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:37:01,456 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 22:37:01,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-09-20 22:37:01,456 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-09-20 22:37:01,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:37:01,456 INFO L85 PathProgramCache]: Analyzing trace with hash -2087054869, now seen corresponding path program 1 times [2022-09-20 22:37:01,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:37:01,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574664280] [2022-09-20 22:37:01,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:37:01,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:37:01,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:37:01,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:37:01,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:37:01,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574664280] [2022-09-20 22:37:01,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574664280] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:37:01,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:37:01,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-09-20 22:37:01,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070787203] [2022-09-20 22:37:01,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:37:01,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-09-20 22:37:01,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:37:01,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-09-20 22:37:01,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-09-20 22:37:01,559 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 105 [2022-09-20 22:37:01,559 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 75 transitions, 216 flow. Second operand has 8 states, 8 states have (on average 74.5) internal successors, (596), 8 states have internal predecessors, (596), 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) [2022-09-20 22:37:01,559 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:37:01,560 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 105 [2022-09-20 22:37:01,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:37:01,665 INFO L130 PetriNetUnfolder]: 0/75 cut-off events. [2022-09-20 22:37:01,665 INFO L131 PetriNetUnfolder]: For 29/29 co-relation queries the response was YES. [2022-09-20 22:37:01,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 75 events. 0/75 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 9 event pairs, 0 based on Foata normal form. 1/76 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2022-09-20 22:37:01,667 INFO L137 encePairwiseOnDemand]: 93/105 looper letters, 0 selfloop transitions, 0 changer transitions 73/73 dead transitions. [2022-09-20 22:37:01,667 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 73 transitions, 248 flow [2022-09-20 22:37:01,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-09-20 22:37:01,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-09-20 22:37:01,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 812 transitions. [2022-09-20 22:37:01,669 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.703030303030303 [2022-09-20 22:37:01,669 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 812 transitions. [2022-09-20 22:37:01,669 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 812 transitions. [2022-09-20 22:37:01,670 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:37:01,670 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 812 transitions. [2022-09-20 22:37:01,672 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 73.81818181818181) internal successors, (812), 11 states have internal predecessors, (812), 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) [2022-09-20 22:37:01,673 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 105.0) internal successors, (1260), 12 states have internal predecessors, (1260), 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) [2022-09-20 22:37:01,673 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 105.0) internal successors, (1260), 12 states have internal predecessors, (1260), 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) [2022-09-20 22:37:01,674 INFO L175 Difference]: Start difference. First operand has 123 places, 75 transitions, 216 flow. Second operand 11 states and 812 transitions. [2022-09-20 22:37:01,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 73 transitions, 248 flow [2022-09-20 22:37:01,675 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 73 transitions, 193 flow, removed 4 selfloop flow, removed 24 redundant places. [2022-09-20 22:37:01,675 INFO L231 Difference]: Finished difference. Result has 91 places, 0 transitions, 0 flow [2022-09-20 22:37:01,675 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=0, PETRI_PLACES=91, PETRI_TRANSITIONS=0} [2022-09-20 22:37:01,676 INFO L287 CegarLoopForPetriNet]: 96 programPoint places, -5 predicate places. [2022-09-20 22:37:01,676 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 0 transitions, 0 flow [2022-09-20 22:37:01,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 74.5) internal successors, (596), 8 states have internal predecessors, (596), 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) [2022-09-20 22:37:01,679 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2022-09-20 22:37:01,679 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2022-09-20 22:37:01,679 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2022-09-20 22:37:01,679 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 7 remaining) [2022-09-20 22:37:01,680 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 7 remaining) [2022-09-20 22:37:01,680 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2022-09-20 22:37:01,680 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2022-09-20 22:37:01,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-09-20 22:37:01,680 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-09-20 22:37:01,683 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-20 22:37:01,684 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-20 22:37:01,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 10:37:01 BasicIcfg [2022-09-20 22:37:01,689 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-20 22:37:01,691 INFO L158 Benchmark]: Toolchain (without parser) took 3083.61ms. Allocated memory was 176.2MB in the beginning and 232.8MB in the end (delta: 56.6MB). Free memory was 117.0MB in the beginning and 166.1MB in the end (delta: -49.1MB). Peak memory consumption was 8.0MB. Max. memory is 8.0GB. [2022-09-20 22:37:01,693 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 176.2MB. Free memory is still 134.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-20 22:37:01,694 INFO L158 Benchmark]: CACSL2BoogieTranslator took 409.55ms. Allocated memory was 176.2MB in the beginning and 232.8MB in the end (delta: 56.6MB). Free memory was 116.7MB in the beginning and 193.1MB in the end (delta: -76.4MB). Peak memory consumption was 11.9MB. Max. memory is 8.0GB. [2022-09-20 22:37:01,694 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.05ms. Allocated memory is still 232.8MB. Free memory was 193.1MB in the beginning and 191.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-20 22:37:01,694 INFO L158 Benchmark]: Boogie Preprocessor took 31.83ms. Allocated memory is still 232.8MB. Free memory was 191.0MB in the beginning and 190.0MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-20 22:37:01,696 INFO L158 Benchmark]: RCFGBuilder took 388.27ms. Allocated memory is still 232.8MB. Free memory was 190.0MB in the beginning and 176.4MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-09-20 22:37:01,696 INFO L158 Benchmark]: TraceAbstraction took 2199.45ms. Allocated memory is still 232.8MB. Free memory was 175.9MB in the beginning and 166.1MB in the end (delta: 9.8MB). Peak memory consumption was 10.7MB. Max. memory is 8.0GB. [2022-09-20 22:37:01,699 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 176.2MB. Free memory is still 134.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 409.55ms. Allocated memory was 176.2MB in the beginning and 232.8MB in the end (delta: 56.6MB). Free memory was 116.7MB in the beginning and 193.1MB in the end (delta: -76.4MB). Peak memory consumption was 11.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 48.05ms. Allocated memory is still 232.8MB. Free memory was 193.1MB in the beginning and 191.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.83ms. Allocated memory is still 232.8MB. Free memory was 191.0MB in the beginning and 190.0MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 388.27ms. Allocated memory is still 232.8MB. Free memory was 190.0MB in the beginning and 176.4MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 2199.45ms. Allocated memory is still 232.8MB. Free memory was 175.9MB in the beginning and 166.1MB in the end (delta: 9.8MB). Peak memory consumption was 10.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 132 locations, 7 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: 2.1s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 278 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 278 mSDsluCounter, 331 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 234 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 353 IncrementalHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 106 mSDtfsCounter, 353 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 88 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=478occurred in iteration=3, InterpolantAutomatonStates: 71, 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, 0.6s InterpolantComputationTime, 396 NumberOfCodeBlocks, 396 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 389 ConstructedInterpolants, 0 QuantifiedInterpolants, 1665 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-09-20 22:37:01,741 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...