/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 --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/goblint-regression/04-mutex_51-mutex_ptr.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 11:40:15,136 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 11:40:15,138 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 11:40:15,178 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-09-16 11:40:15,204 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 11:40:15,206 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 11:40:15,210 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 11:40:15,212 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 11:40:15,212 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 11:40:15,213 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 11:40:15,218 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 11:40:15,221 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 11:40:15,222 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 11:40:15,223 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 11:40:15,224 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 11:40:15,225 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 11:40:15,227 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-16 11:40:15,234 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 11:40:15,234 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 11:40:15,239 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 11:40:15,240 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 [2022-09-16 11:40:15,278 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 11:40:15,278 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 11:40:15,279 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 11:40:15,280 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 11:40:15,280 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 11:40:15,280 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 11:40:15,280 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 11:40:15,281 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 11:40:15,281 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 11:40:15,281 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 11:40:15,282 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 11:40:15,282 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 11:40:15,282 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 11:40:15,282 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 11:40:15,282 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 11:40:15,283 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 11:40:15,283 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 11:40:15,283 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 11:40:15,283 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 11:40:15,283 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 11:40:15,283 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 11:40:15,283 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 11:40:15,284 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 11:40:15,284 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:40:15,284 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 11:40:15,284 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 11:40:15,284 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 11:40:15,284 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 11:40:15,284 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 11:40:15,285 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 11:40:15,285 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-16 11:40:15,285 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 11:40:15,537 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 11:40:15,573 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 11:40:15,575 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 11:40:15,576 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 11:40:15,577 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 11:40:15,578 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_51-mutex_ptr.i [2022-09-16 11:40:15,645 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99b5da603/93299d36e8324bf58c4f180f10446dbb/FLAG0636d271f [2022-09-16 11:40:16,123 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 11:40:16,123 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_51-mutex_ptr.i [2022-09-16 11:40:16,153 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99b5da603/93299d36e8324bf58c4f180f10446dbb/FLAG0636d271f [2022-09-16 11:40:16,458 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99b5da603/93299d36e8324bf58c4f180f10446dbb [2022-09-16 11:40:16,460 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 11:40:16,462 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 11:40:16,463 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 11:40:16,464 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 11:40:16,466 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 11:40:16,467 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:40:16" (1/1) ... [2022-09-16 11:40:16,468 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@392ca32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:16, skipping insertion in model container [2022-09-16 11:40:16,468 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:40:16" (1/1) ... [2022-09-16 11:40:16,481 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 11:40:16,530 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 11:40:17,031 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:40:17,044 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 11:40:17,084 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:40:17,135 INFO L208 MainTranslator]: Completed translation [2022-09-16 11:40:17,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:17 WrapperNode [2022-09-16 11:40:17,136 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 11:40:17,137 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 11:40:17,137 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 11:40:17,138 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 11:40:17,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:17" (1/1) ... [2022-09-16 11:40:17,178 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:17" (1/1) ... [2022-09-16 11:40:17,202 INFO L138 Inliner]: procedures = 262, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 51 [2022-09-16 11:40:17,203 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 11:40:17,204 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 11:40:17,204 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 11:40:17,204 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 11:40:17,210 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:17" (1/1) ... [2022-09-16 11:40:17,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:17" (1/1) ... [2022-09-16 11:40:17,221 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:17" (1/1) ... [2022-09-16 11:40:17,222 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:17" (1/1) ... [2022-09-16 11:40:17,231 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:17" (1/1) ... [2022-09-16 11:40:17,232 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:17" (1/1) ... [2022-09-16 11:40:17,233 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:17" (1/1) ... [2022-09-16 11:40:17,235 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 11:40:17,236 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 11:40:17,236 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 11:40:17,236 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 11:40:17,243 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:17" (1/1) ... [2022-09-16 11:40:17,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:40:17,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:40:17,281 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) [2022-09-16 11:40:17,317 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 11:40:17,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 11:40:17,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-16 11:40:17,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 11:40:17,317 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-09-16 11:40:17,317 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 11:40:17,317 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-09-16 11:40:17,318 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-09-16 11:40:17,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 11:40:17,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 11:40:17,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 11:40:17,319 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-16 11:40:17,303 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 [2022-09-16 11:40:17,490 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 11:40:17,492 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 11:40:17,674 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 11:40:17,682 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 11:40:17,682 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-16 11:40:17,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:40:17 BoogieIcfgContainer [2022-09-16 11:40:17,684 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 11:40:17,686 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 11:40:17,686 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 11:40:17,689 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 11:40:17,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 11:40:16" (1/3) ... [2022-09-16 11:40:17,690 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ee5e7b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:40:17, skipping insertion in model container [2022-09-16 11:40:17,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:17" (2/3) ... [2022-09-16 11:40:17,691 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ee5e7b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:40:17, skipping insertion in model container [2022-09-16 11:40:17,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:40:17" (3/3) ... [2022-09-16 11:40:17,692 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_51-mutex_ptr.i [2022-09-16 11:40:17,708 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 11:40:17,708 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-09-16 11:40:17,708 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 11:40:17,785 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-09-16 11:40:17,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 78 places, 74 transitions, 156 flow [2022-09-16 11:40:17,871 INFO L130 PetriNetUnfolder]: 0/73 cut-off events. [2022-09-16 11:40:17,872 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-09-16 11:40:17,873 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 73 events. 0/73 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 39 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-09-16 11:40:17,873 INFO L82 GeneralOperation]: Start removeDead. Operand has 78 places, 74 transitions, 156 flow [2022-09-16 11:40:17,877 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 65 transitions, 133 flow [2022-09-16 11:40:17,890 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 11:40:17,897 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;@278cf2d5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 11:40:17,898 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-09-16 11:40:17,924 INFO L130 PetriNetUnfolder]: 0/48 cut-off events. [2022-09-16 11:40:17,924 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:40:17,925 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:40:17,925 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] [2022-09-16 11:40:17,927 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-09-16 11:40:17,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:40:17,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1359327265, now seen corresponding path program 1 times [2022-09-16 11:40:17,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:40:17,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693435430] [2022-09-16 11:40:17,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:40:17,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:40:18,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:40:18,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:40:18,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:40:18,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693435430] [2022-09-16 11:40:18,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693435430] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:40:18,364 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:40:18,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-16 11:40:18,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221839824] [2022-09-16 11:40:18,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:40:18,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-09-16 11:40:18,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:40:18,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-09-16 11:40:18,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-09-16 11:40:18,409 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 74 [2022-09-16 11:40:18,416 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 65 transitions, 133 flow. Second operand has 8 states, 8 states have (on average 49.75) internal successors, (398), 8 states have internal predecessors, (398), 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) [2022-09-16 11:40:18,417 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:40:18,417 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 74 [2022-09-16 11:40:18,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:40:18,649 INFO L130 PetriNetUnfolder]: 18/124 cut-off events. [2022-09-16 11:40:18,650 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:40:18,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 192 conditions, 124 events. 18/124 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 330 event pairs, 0 based on Foata normal form. 0/119 useless extension candidates. Maximal degree in co-relation 140. Up to 23 conditions per place. [2022-09-16 11:40:18,653 INFO L137 encePairwiseOnDemand]: 64/74 looper letters, 23 selfloop transitions, 8 changer transitions 9/82 dead transitions. [2022-09-16 11:40:18,653 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 82 transitions, 247 flow [2022-09-16 11:40:18,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-16 11:40:18,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-09-16 11:40:18,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 428 transitions. [2022-09-16 11:40:18,669 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.722972972972973 [2022-09-16 11:40:18,670 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 428 transitions. [2022-09-16 11:40:18,670 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 428 transitions. [2022-09-16 11:40:18,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:40:18,674 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 428 transitions. [2022-09-16 11:40:18,680 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 53.5) internal successors, (428), 8 states have internal predecessors, (428), 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) [2022-09-16 11:40:18,687 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 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) [2022-09-16 11:40:18,687 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 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) [2022-09-16 11:40:18,689 INFO L175 Difference]: Start difference. First operand has 69 places, 65 transitions, 133 flow. Second operand 8 states and 428 transitions. [2022-09-16 11:40:18,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 82 transitions, 247 flow [2022-09-16 11:40:18,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 82 transitions, 246 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-16 11:40:18,695 INFO L231 Difference]: Finished difference. Result has 78 places, 66 transitions, 167 flow [2022-09-16 11:40:18,697 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=167, PETRI_PLACES=78, PETRI_TRANSITIONS=66} [2022-09-16 11:40:18,701 INFO L287 CegarLoopForPetriNet]: 69 programPoint places, 9 predicate places. [2022-09-16 11:40:18,701 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 66 transitions, 167 flow [2022-09-16 11:40:18,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 49.75) internal successors, (398), 8 states have internal predecessors, (398), 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) [2022-09-16 11:40:18,702 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:40:18,702 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] [2022-09-16 11:40:18,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 11:40:18,702 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-09-16 11:40:18,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:40:18,703 INFO L85 PathProgramCache]: Analyzing trace with hash 65120634, now seen corresponding path program 1 times [2022-09-16 11:40:18,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:40:18,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973435167] [2022-09-16 11:40:18,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:40:18,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:40:18,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:40:18,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:40:18,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:40:18,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973435167] [2022-09-16 11:40:18,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973435167] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:40:18,821 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:40:18,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-09-16 11:40:18,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448440084] [2022-09-16 11:40:18,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:40:18,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-09-16 11:40:18,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:40:18,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-09-16 11:40:18,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-09-16 11:40:18,824 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 74 [2022-09-16 11:40:18,825 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 66 transitions, 167 flow. Second operand has 9 states, 9 states have (on average 49.666666666666664) internal successors, (447), 9 states have internal predecessors, (447), 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) [2022-09-16 11:40:18,825 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:40:18,825 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 74 [2022-09-16 11:40:18,825 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:40:19,027 INFO L130 PetriNetUnfolder]: 16/119 cut-off events. [2022-09-16 11:40:19,027 INFO L131 PetriNetUnfolder]: For 38/38 co-relation queries the response was YES. [2022-09-16 11:40:19,028 INFO L83 FinitePrefix]: Finished finitePrefix Result has 230 conditions, 119 events. 16/119 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 335 event pairs, 5 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 171. Up to 25 conditions per place. [2022-09-16 11:40:19,029 INFO L137 encePairwiseOnDemand]: 63/74 looper letters, 20 selfloop transitions, 10 changer transitions 6/78 dead transitions. [2022-09-16 11:40:19,029 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 78 transitions, 281 flow [2022-09-16 11:40:19,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-16 11:40:19,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-09-16 11:40:19,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 472 transitions. [2022-09-16 11:40:19,033 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7087087087087087 [2022-09-16 11:40:19,034 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 472 transitions. [2022-09-16 11:40:19,034 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 472 transitions. [2022-09-16 11:40:19,034 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:40:19,034 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 472 transitions. [2022-09-16 11:40:19,035 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 52.44444444444444) internal successors, (472), 9 states have internal predecessors, (472), 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) [2022-09-16 11:40:19,037 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 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) [2022-09-16 11:40:19,056 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 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) [2022-09-16 11:40:19,056 INFO L175 Difference]: Start difference. First operand has 78 places, 66 transitions, 167 flow. Second operand 9 states and 472 transitions. [2022-09-16 11:40:19,056 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 78 transitions, 281 flow [2022-09-16 11:40:19,057 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 78 transitions, 260 flow, removed 2 selfloop flow, removed 6 redundant places. [2022-09-16 11:40:19,059 INFO L231 Difference]: Finished difference. Result has 84 places, 69 transitions, 200 flow [2022-09-16 11:40:19,059 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=200, PETRI_PLACES=84, PETRI_TRANSITIONS=69} [2022-09-16 11:40:19,060 INFO L287 CegarLoopForPetriNet]: 69 programPoint places, 15 predicate places. [2022-09-16 11:40:19,060 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 69 transitions, 200 flow [2022-09-16 11:40:19,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 49.666666666666664) internal successors, (447), 9 states have internal predecessors, (447), 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) [2022-09-16 11:40:19,060 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:40:19,060 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] [2022-09-16 11:40:19,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 11:40:19,061 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-09-16 11:40:19,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:40:19,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1991828199, now seen corresponding path program 1 times [2022-09-16 11:40:19,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:40:19,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146231467] [2022-09-16 11:40:19,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:40:19,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:40:19,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:40:19,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:40:19,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:40:19,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146231467] [2022-09-16 11:40:19,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146231467] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:40:19,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:40:19,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:40:19,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882073864] [2022-09-16 11:40:19,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:40:19,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 11:40:19,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:40:19,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 11:40:19,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:40:19,165 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 74 [2022-09-16 11:40:19,165 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 69 transitions, 200 flow. Second operand has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 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) [2022-09-16 11:40:19,165 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:40:19,166 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 74 [2022-09-16 11:40:19,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:40:19,197 INFO L130 PetriNetUnfolder]: 6/105 cut-off events. [2022-09-16 11:40:19,197 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-09-16 11:40:19,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181 conditions, 105 events. 6/105 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 195 event pairs, 3 based on Foata normal form. 2/106 useless extension candidates. Maximal degree in co-relation 131. Up to 15 conditions per place. [2022-09-16 11:40:19,199 INFO L137 encePairwiseOnDemand]: 70/74 looper letters, 7 selfloop transitions, 4 changer transitions 0/71 dead transitions. [2022-09-16 11:40:19,199 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 71 transitions, 226 flow [2022-09-16 11:40:19,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 11:40:19,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-09-16 11:40:19,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 205 transitions. [2022-09-16 11:40:19,201 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9234234234234234 [2022-09-16 11:40:19,201 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 205 transitions. [2022-09-16 11:40:19,201 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 205 transitions. [2022-09-16 11:40:19,201 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:40:19,201 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 205 transitions. [2022-09-16 11:40:19,202 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 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) [2022-09-16 11:40:19,203 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 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) [2022-09-16 11:40:19,203 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 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) [2022-09-16 11:40:19,203 INFO L175 Difference]: Start difference. First operand has 84 places, 69 transitions, 200 flow. Second operand 3 states and 205 transitions. [2022-09-16 11:40:19,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 71 transitions, 226 flow [2022-09-16 11:40:19,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 71 transitions, 208 flow, removed 2 selfloop flow, removed 6 redundant places. [2022-09-16 11:40:19,206 INFO L231 Difference]: Finished difference. Result has 80 places, 69 transitions, 190 flow [2022-09-16 11:40:19,207 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=190, PETRI_PLACES=80, PETRI_TRANSITIONS=69} [2022-09-16 11:40:19,215 INFO L287 CegarLoopForPetriNet]: 69 programPoint places, 11 predicate places. [2022-09-16 11:40:19,215 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 69 transitions, 190 flow [2022-09-16 11:40:19,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 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) [2022-09-16 11:40:19,216 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:40:19,216 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] [2022-09-16 11:40:19,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 11:40:19,217 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-09-16 11:40:19,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:40:19,217 INFO L85 PathProgramCache]: Analyzing trace with hash 913948791, now seen corresponding path program 1 times [2022-09-16 11:40:19,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:40:19,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931495085] [2022-09-16 11:40:19,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:40:19,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:40:19,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:40:19,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:40:19,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:40:19,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931495085] [2022-09-16 11:40:19,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931495085] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:40:19,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:40:19,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-09-16 11:40:19,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607229174] [2022-09-16 11:40:19,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:40:19,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-09-16 11:40:19,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:40:19,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-09-16 11:40:19,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-09-16 11:40:19,453 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 74 [2022-09-16 11:40:19,454 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 69 transitions, 190 flow. Second operand has 11 states, 11 states have (on average 44.81818181818182) internal successors, (493), 11 states have internal predecessors, (493), 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) [2022-09-16 11:40:19,454 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:40:19,454 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 74 [2022-09-16 11:40:19,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:40:19,748 INFO L130 PetriNetUnfolder]: 14/121 cut-off events. [2022-09-16 11:40:19,749 INFO L131 PetriNetUnfolder]: For 36/36 co-relation queries the response was YES. [2022-09-16 11:40:19,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 253 conditions, 121 events. 14/121 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 278 event pairs, 4 based on Foata normal form. 2/121 useless extension candidates. Maximal degree in co-relation 194. Up to 28 conditions per place. [2022-09-16 11:40:19,750 INFO L137 encePairwiseOnDemand]: 61/74 looper letters, 32 selfloop transitions, 15 changer transitions 3/87 dead transitions. [2022-09-16 11:40:19,750 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 87 transitions, 338 flow [2022-09-16 11:40:19,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-09-16 11:40:19,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-09-16 11:40:19,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 610 transitions. [2022-09-16 11:40:19,753 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6340956340956341 [2022-09-16 11:40:19,753 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 610 transitions. [2022-09-16 11:40:19,754 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 610 transitions. [2022-09-16 11:40:19,754 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:40:19,754 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 610 transitions. [2022-09-16 11:40:19,756 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 46.92307692307692) internal successors, (610), 13 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:40:19,758 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 74.0) internal successors, (1036), 14 states have internal predecessors, (1036), 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) [2022-09-16 11:40:19,759 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 74.0) internal successors, (1036), 14 states have internal predecessors, (1036), 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) [2022-09-16 11:40:19,759 INFO L175 Difference]: Start difference. First operand has 80 places, 69 transitions, 190 flow. Second operand 13 states and 610 transitions. [2022-09-16 11:40:19,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 87 transitions, 338 flow [2022-09-16 11:40:19,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 87 transitions, 334 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-16 11:40:19,763 INFO L231 Difference]: Finished difference. Result has 96 places, 74 transitions, 263 flow [2022-09-16 11:40:19,784 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=263, PETRI_PLACES=96, PETRI_TRANSITIONS=74} [2022-09-16 11:40:19,786 INFO L287 CegarLoopForPetriNet]: 69 programPoint places, 27 predicate places. [2022-09-16 11:40:19,786 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 74 transitions, 263 flow [2022-09-16 11:40:19,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 44.81818181818182) internal successors, (493), 11 states have internal predecessors, (493), 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) [2022-09-16 11:40:19,788 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:40:19,788 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] [2022-09-16 11:40:19,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-16 11:40:19,790 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-09-16 11:40:19,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:40:19,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1702926921, now seen corresponding path program 2 times [2022-09-16 11:40:19,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:40:19,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110209177] [2022-09-16 11:40:19,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:40:19,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:40:19,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:40:19,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:40:19,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:40:19,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110209177] [2022-09-16 11:40:19,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110209177] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:40:19,943 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:40:19,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-09-16 11:40:19,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890198430] [2022-09-16 11:40:19,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:40:19,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-09-16 11:40:19,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:40:19,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-09-16 11:40:19,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-09-16 11:40:19,945 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 74 [2022-09-16 11:40:19,946 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 74 transitions, 263 flow. Second operand has 11 states, 11 states have (on average 44.81818181818182) internal successors, (493), 11 states have internal predecessors, (493), 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) [2022-09-16 11:40:19,946 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:40:19,946 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 74 [2022-09-16 11:40:19,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:40:20,293 INFO L130 PetriNetUnfolder]: 17/142 cut-off events. [2022-09-16 11:40:20,293 INFO L131 PetriNetUnfolder]: For 120/122 co-relation queries the response was YES. [2022-09-16 11:40:20,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 338 conditions, 142 events. 17/142 cut-off events. For 120/122 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 391 event pairs, 5 based on Foata normal form. 4/144 useless extension candidates. Maximal degree in co-relation 280. Up to 25 conditions per place. [2022-09-16 11:40:20,295 INFO L137 encePairwiseOnDemand]: 61/74 looper letters, 31 selfloop transitions, 22 changer transitions 3/93 dead transitions. [2022-09-16 11:40:20,295 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 93 transitions, 435 flow [2022-09-16 11:40:20,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-09-16 11:40:20,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-09-16 11:40:20,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 829 transitions. [2022-09-16 11:40:20,298 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6223723723723724 [2022-09-16 11:40:20,298 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 829 transitions. [2022-09-16 11:40:20,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 829 transitions. [2022-09-16 11:40:20,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:40:20,299 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 829 transitions. [2022-09-16 11:40:20,301 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 46.05555555555556) internal successors, (829), 18 states have internal predecessors, (829), 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) [2022-09-16 11:40:20,305 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 74.0) internal successors, (1406), 19 states have internal predecessors, (1406), 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) [2022-09-16 11:40:20,305 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 74.0) internal successors, (1406), 19 states have internal predecessors, (1406), 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) [2022-09-16 11:40:20,305 INFO L175 Difference]: Start difference. First operand has 96 places, 74 transitions, 263 flow. Second operand 18 states and 829 transitions. [2022-09-16 11:40:20,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 93 transitions, 435 flow [2022-09-16 11:40:20,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 93 transitions, 413 flow, removed 1 selfloop flow, removed 7 redundant places. [2022-09-16 11:40:20,314 INFO L231 Difference]: Finished difference. Result has 110 places, 80 transitions, 342 flow [2022-09-16 11:40:20,314 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=342, PETRI_PLACES=110, PETRI_TRANSITIONS=80} [2022-09-16 11:40:20,317 INFO L287 CegarLoopForPetriNet]: 69 programPoint places, 41 predicate places. [2022-09-16 11:40:20,317 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 80 transitions, 342 flow [2022-09-16 11:40:20,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 44.81818181818182) internal successors, (493), 11 states have internal predecessors, (493), 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) [2022-09-16 11:40:20,317 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:40:20,318 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] [2022-09-16 11:40:20,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-16 11:40:20,318 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-09-16 11:40:20,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:40:20,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1831030184, now seen corresponding path program 1 times [2022-09-16 11:40:20,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:40:20,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195659550] [2022-09-16 11:40:20,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:40:20,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:40:20,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:40:20,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:40:20,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:40:20,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195659550] [2022-09-16 11:40:20,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195659550] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:40:20,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:40:20,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-09-16 11:40:20,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479654316] [2022-09-16 11:40:20,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:40:20,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-09-16 11:40:20,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:40:20,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-09-16 11:40:20,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-09-16 11:40:20,500 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 74 [2022-09-16 11:40:20,500 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 80 transitions, 342 flow. Second operand has 11 states, 11 states have (on average 44.81818181818182) internal successors, (493), 11 states have internal predecessors, (493), 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) [2022-09-16 11:40:20,501 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:40:20,501 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 74 [2022-09-16 11:40:20,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:40:20,763 INFO L130 PetriNetUnfolder]: 17/141 cut-off events. [2022-09-16 11:40:20,763 INFO L131 PetriNetUnfolder]: For 178/180 co-relation queries the response was YES. [2022-09-16 11:40:20,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 368 conditions, 141 events. 17/141 cut-off events. For 178/180 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 382 event pairs, 14 based on Foata normal form. 3/142 useless extension candidates. Maximal degree in co-relation 302. Up to 50 conditions per place. [2022-09-16 11:40:20,767 INFO L137 encePairwiseOnDemand]: 62/74 looper letters, 27 selfloop transitions, 19 changer transitions 2/85 dead transitions. [2022-09-16 11:40:20,768 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 85 transitions, 446 flow [2022-09-16 11:40:20,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-09-16 11:40:20,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-09-16 11:40:20,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 643 transitions. [2022-09-16 11:40:20,770 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6206563706563707 [2022-09-16 11:40:20,771 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 643 transitions. [2022-09-16 11:40:20,771 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 643 transitions. [2022-09-16 11:40:20,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:40:20,771 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 643 transitions. [2022-09-16 11:40:20,773 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 45.92857142857143) internal successors, (643), 14 states have internal predecessors, (643), 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) [2022-09-16 11:40:20,776 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 74.0) internal successors, (1110), 15 states have internal predecessors, (1110), 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) [2022-09-16 11:40:20,777 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 74.0) internal successors, (1110), 15 states have internal predecessors, (1110), 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) [2022-09-16 11:40:20,777 INFO L175 Difference]: Start difference. First operand has 110 places, 80 transitions, 342 flow. Second operand 14 states and 643 transitions. [2022-09-16 11:40:20,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 85 transitions, 446 flow [2022-09-16 11:40:20,780 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 85 transitions, 383 flow, removed 8 selfloop flow, removed 15 redundant places. [2022-09-16 11:40:20,783 INFO L231 Difference]: Finished difference. Result has 107 places, 79 transitions, 313 flow [2022-09-16 11:40:20,783 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=275, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=313, PETRI_PLACES=107, PETRI_TRANSITIONS=79} [2022-09-16 11:40:20,786 INFO L287 CegarLoopForPetriNet]: 69 programPoint places, 38 predicate places. [2022-09-16 11:40:20,786 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 79 transitions, 313 flow [2022-09-16 11:40:20,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 44.81818181818182) internal successors, (493), 11 states have internal predecessors, (493), 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) [2022-09-16 11:40:20,787 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:40:20,787 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] [2022-09-16 11:40:20,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-09-16 11:40:20,787 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-09-16 11:40:20,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:40:20,788 INFO L85 PathProgramCache]: Analyzing trace with hash 71804731, now seen corresponding path program 3 times [2022-09-16 11:40:20,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:40:20,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374936659] [2022-09-16 11:40:20,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:40:20,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:40:20,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:40:20,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:40:20,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:40:20,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374936659] [2022-09-16 11:40:20,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374936659] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:40:20,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:40:20,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-09-16 11:40:20,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30317843] [2022-09-16 11:40:20,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:40:20,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-09-16 11:40:20,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:40:20,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-09-16 11:40:20,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-09-16 11:40:20,931 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 74 [2022-09-16 11:40:20,931 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 79 transitions, 313 flow. Second operand has 11 states, 11 states have (on average 44.81818181818182) internal successors, (493), 11 states have internal predecessors, (493), 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) [2022-09-16 11:40:20,931 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:40:20,932 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 74 [2022-09-16 11:40:20,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:40:21,215 INFO L130 PetriNetUnfolder]: 16/135 cut-off events. [2022-09-16 11:40:21,215 INFO L131 PetriNetUnfolder]: For 116/118 co-relation queries the response was YES. [2022-09-16 11:40:21,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 340 conditions, 135 events. 16/135 cut-off events. For 116/118 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 342 event pairs, 0 based on Foata normal form. 4/136 useless extension candidates. Maximal degree in co-relation 267. Up to 36 conditions per place. [2022-09-16 11:40:21,217 INFO L137 encePairwiseOnDemand]: 62/74 looper letters, 24 selfloop transitions, 23 changer transitions 2/86 dead transitions. [2022-09-16 11:40:21,217 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 86 transitions, 421 flow [2022-09-16 11:40:21,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-09-16 11:40:21,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-09-16 11:40:21,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 731 transitions. [2022-09-16 11:40:21,220 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6173986486486487 [2022-09-16 11:40:21,220 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 731 transitions. [2022-09-16 11:40:21,220 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 731 transitions. [2022-09-16 11:40:21,221 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:40:21,221 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 731 transitions. [2022-09-16 11:40:21,222 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 45.6875) internal successors, (731), 16 states have internal predecessors, (731), 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) [2022-09-16 11:40:21,225 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 74.0) internal successors, (1258), 17 states have internal predecessors, (1258), 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) [2022-09-16 11:40:21,225 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 74.0) internal successors, (1258), 17 states have internal predecessors, (1258), 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) [2022-09-16 11:40:21,225 INFO L175 Difference]: Start difference. First operand has 107 places, 79 transitions, 313 flow. Second operand 16 states and 731 transitions. [2022-09-16 11:40:21,225 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 86 transitions, 421 flow [2022-09-16 11:40:21,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 86 transitions, 374 flow, removed 3 selfloop flow, removed 13 redundant places. [2022-09-16 11:40:21,229 INFO L231 Difference]: Finished difference. Result has 108 places, 78 transitions, 306 flow [2022-09-16 11:40:21,229 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=306, PETRI_PLACES=108, PETRI_TRANSITIONS=78} [2022-09-16 11:40:21,229 INFO L287 CegarLoopForPetriNet]: 69 programPoint places, 39 predicate places. [2022-09-16 11:40:21,230 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 78 transitions, 306 flow [2022-09-16 11:40:21,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 44.81818181818182) internal successors, (493), 11 states have internal predecessors, (493), 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) [2022-09-16 11:40:21,230 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:40:21,230 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] [2022-09-16 11:40:21,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-09-16 11:40:21,230 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-09-16 11:40:21,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:40:21,231 INFO L85 PathProgramCache]: Analyzing trace with hash 750311741, now seen corresponding path program 1 times [2022-09-16 11:40:21,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:40:21,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050947101] [2022-09-16 11:40:21,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:40:21,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:40:21,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:40:21,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:40:21,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:40:21,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050947101] [2022-09-16 11:40:21,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050947101] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:40:21,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:40:21,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 11:40:21,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503907274] [2022-09-16 11:40:21,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:40:21,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 11:40:21,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:40:21,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 11:40:21,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-09-16 11:40:21,317 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 74 [2022-09-16 11:40:21,318 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 78 transitions, 306 flow. Second operand has 6 states, 6 states have (on average 50.166666666666664) internal successors, (301), 6 states have internal predecessors, (301), 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) [2022-09-16 11:40:21,318 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:40:21,318 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 74 [2022-09-16 11:40:21,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:40:21,396 INFO L130 PetriNetUnfolder]: 17/147 cut-off events. [2022-09-16 11:40:21,396 INFO L131 PetriNetUnfolder]: For 129/131 co-relation queries the response was YES. [2022-09-16 11:40:21,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 370 conditions, 147 events. 17/147 cut-off events. For 129/131 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 436 event pairs, 8 based on Foata normal form. 6/149 useless extension candidates. Maximal degree in co-relation 322. Up to 47 conditions per place. [2022-09-16 11:40:21,397 INFO L137 encePairwiseOnDemand]: 68/74 looper letters, 32 selfloop transitions, 4 changer transitions 12/87 dead transitions. [2022-09-16 11:40:21,397 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 87 transitions, 434 flow [2022-09-16 11:40:21,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 11:40:21,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-09-16 11:40:21,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 367 transitions. [2022-09-16 11:40:21,399 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7084942084942085 [2022-09-16 11:40:21,399 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 367 transitions. [2022-09-16 11:40:21,399 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 367 transitions. [2022-09-16 11:40:21,399 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:40:21,399 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 367 transitions. [2022-09-16 11:40:21,400 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 52.42857142857143) internal successors, (367), 7 states have internal predecessors, (367), 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) [2022-09-16 11:40:21,401 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 74.0) internal successors, (592), 8 states have internal predecessors, (592), 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) [2022-09-16 11:40:21,401 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 74.0) internal successors, (592), 8 states have internal predecessors, (592), 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) [2022-09-16 11:40:21,401 INFO L175 Difference]: Start difference. First operand has 108 places, 78 transitions, 306 flow. Second operand 7 states and 367 transitions. [2022-09-16 11:40:21,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 87 transitions, 434 flow [2022-09-16 11:40:21,403 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 87 transitions, 368 flow, removed 3 selfloop flow, removed 17 redundant places. [2022-09-16 11:40:21,404 INFO L231 Difference]: Finished difference. Result has 102 places, 73 transitions, 235 flow [2022-09-16 11:40:21,404 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=239, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=235, PETRI_PLACES=102, PETRI_TRANSITIONS=73} [2022-09-16 11:40:21,406 INFO L287 CegarLoopForPetriNet]: 69 programPoint places, 33 predicate places. [2022-09-16 11:40:21,407 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 73 transitions, 235 flow [2022-09-16 11:40:21,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 50.166666666666664) internal successors, (301), 6 states have internal predecessors, (301), 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) [2022-09-16 11:40:21,407 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:40:21,407 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] [2022-09-16 11:40:21,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-09-16 11:40:21,407 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-09-16 11:40:21,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:40:21,408 INFO L85 PathProgramCache]: Analyzing trace with hash 634072983, now seen corresponding path program 1 times [2022-09-16 11:40:21,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:40:21,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274415534] [2022-09-16 11:40:21,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:40:21,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:40:21,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:40:21,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:40:21,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:40:21,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274415534] [2022-09-16 11:40:21,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274415534] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:40:21,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:40:21,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 11:40:21,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3972051] [2022-09-16 11:40:21,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:40:21,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 11:40:21,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:40:21,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 11:40:21,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-09-16 11:40:21,476 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 74 [2022-09-16 11:40:21,477 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 73 transitions, 235 flow. Second operand has 6 states, 6 states have (on average 50.166666666666664) internal successors, (301), 6 states have internal predecessors, (301), 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) [2022-09-16 11:40:21,477 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:40:21,477 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 74 [2022-09-16 11:40:21,477 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:40:21,557 INFO L130 PetriNetUnfolder]: 11/111 cut-off events. [2022-09-16 11:40:21,557 INFO L131 PetriNetUnfolder]: For 80/81 co-relation queries the response was YES. [2022-09-16 11:40:21,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 247 conditions, 111 events. 11/111 cut-off events. For 80/81 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 221 event pairs, 6 based on Foata normal form. 2/111 useless extension candidates. Maximal degree in co-relation 224. Up to 33 conditions per place. [2022-09-16 11:40:21,558 INFO L137 encePairwiseOnDemand]: 66/74 looper letters, 23 selfloop transitions, 5 changer transitions 12/76 dead transitions. [2022-09-16 11:40:21,558 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 76 transitions, 313 flow [2022-09-16 11:40:21,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-16 11:40:21,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-09-16 11:40:21,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 407 transitions. [2022-09-16 11:40:21,560 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6875 [2022-09-16 11:40:21,560 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 407 transitions. [2022-09-16 11:40:21,560 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 407 transitions. [2022-09-16 11:40:21,560 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:40:21,560 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 407 transitions. [2022-09-16 11:40:21,561 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 50.875) internal successors, (407), 8 states have internal predecessors, (407), 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) [2022-09-16 11:40:21,563 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 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) [2022-09-16 11:40:21,563 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 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) [2022-09-16 11:40:21,563 INFO L175 Difference]: Start difference. First operand has 102 places, 73 transitions, 235 flow. Second operand 8 states and 407 transitions. [2022-09-16 11:40:21,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 76 transitions, 313 flow [2022-09-16 11:40:21,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 76 transitions, 296 flow, removed 5 selfloop flow, removed 7 redundant places. [2022-09-16 11:40:21,565 INFO L231 Difference]: Finished difference. Result has 93 places, 63 transitions, 192 flow [2022-09-16 11:40:21,565 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=192, PETRI_PLACES=93, PETRI_TRANSITIONS=63} [2022-09-16 11:40:21,566 INFO L287 CegarLoopForPetriNet]: 69 programPoint places, 24 predicate places. [2022-09-16 11:40:21,566 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 63 transitions, 192 flow [2022-09-16 11:40:21,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 50.166666666666664) internal successors, (301), 6 states have internal predecessors, (301), 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) [2022-09-16 11:40:21,567 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:40:21,567 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] [2022-09-16 11:40:21,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-09-16 11:40:21,567 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-09-16 11:40:21,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:40:21,567 INFO L85 PathProgramCache]: Analyzing trace with hash -635711641, now seen corresponding path program 2 times [2022-09-16 11:40:21,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:40:21,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743334130] [2022-09-16 11:40:21,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:40:21,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:40:21,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:40:21,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:40:21,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:40:21,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743334130] [2022-09-16 11:40:21,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743334130] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:40:21,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:40:21,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 11:40:21,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640946341] [2022-09-16 11:40:21,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:40:21,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 11:40:21,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:40:21,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 11:40:21,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-09-16 11:40:21,641 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 74 [2022-09-16 11:40:21,642 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 63 transitions, 192 flow. Second operand has 6 states, 6 states have (on average 50.166666666666664) internal successors, (301), 6 states have internal predecessors, (301), 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) [2022-09-16 11:40:21,642 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:40:21,642 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 74 [2022-09-16 11:40:21,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:40:21,696 INFO L130 PetriNetUnfolder]: 8/86 cut-off events. [2022-09-16 11:40:21,696 INFO L131 PetriNetUnfolder]: For 49/49 co-relation queries the response was YES. [2022-09-16 11:40:21,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187 conditions, 86 events. 8/86 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 108 event pairs, 4 based on Foata normal form. 2/86 useless extension candidates. Maximal degree in co-relation 128. Up to 31 conditions per place. [2022-09-16 11:40:21,697 INFO L137 encePairwiseOnDemand]: 68/74 looper letters, 18 selfloop transitions, 4 changer transitions 8/66 dead transitions. [2022-09-16 11:40:21,697 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 66 transitions, 261 flow [2022-09-16 11:40:21,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 11:40:21,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-09-16 11:40:21,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 358 transitions. [2022-09-16 11:40:21,698 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6911196911196911 [2022-09-16 11:40:21,698 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 358 transitions. [2022-09-16 11:40:21,699 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 358 transitions. [2022-09-16 11:40:21,699 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:40:21,699 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 358 transitions. [2022-09-16 11:40:21,700 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 51.142857142857146) internal successors, (358), 7 states have internal predecessors, (358), 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) [2022-09-16 11:40:21,701 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 74.0) internal successors, (592), 8 states have internal predecessors, (592), 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) [2022-09-16 11:40:21,701 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 74.0) internal successors, (592), 8 states have internal predecessors, (592), 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) [2022-09-16 11:40:21,701 INFO L175 Difference]: Start difference. First operand has 93 places, 63 transitions, 192 flow. Second operand 7 states and 358 transitions. [2022-09-16 11:40:21,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 66 transitions, 261 flow [2022-09-16 11:40:21,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 66 transitions, 236 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-09-16 11:40:21,703 INFO L231 Difference]: Finished difference. Result has 79 places, 58 transitions, 151 flow [2022-09-16 11:40:21,704 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=151, PETRI_PLACES=79, PETRI_TRANSITIONS=58} [2022-09-16 11:40:21,705 INFO L287 CegarLoopForPetriNet]: 69 programPoint places, 10 predicate places. [2022-09-16 11:40:21,705 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 58 transitions, 151 flow [2022-09-16 11:40:21,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 50.166666666666664) internal successors, (301), 6 states have internal predecessors, (301), 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) [2022-09-16 11:40:21,705 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:40:21,705 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] [2022-09-16 11:40:21,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-09-16 11:40:21,706 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-09-16 11:40:21,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:40:21,706 INFO L85 PathProgramCache]: Analyzing trace with hash 23777309, now seen corresponding path program 3 times [2022-09-16 11:40:21,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:40:21,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093592872] [2022-09-16 11:40:21,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:40:21,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:40:21,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:40:21,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:40:21,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:40:21,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093592872] [2022-09-16 11:40:21,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093592872] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:40:21,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:40:21,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 11:40:21,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561850976] [2022-09-16 11:40:21,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:40:21,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 11:40:21,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:40:21,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 11:40:21,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-09-16 11:40:21,763 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 74 [2022-09-16 11:40:21,763 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 58 transitions, 151 flow. Second operand has 6 states, 6 states have (on average 50.166666666666664) internal successors, (301), 6 states have internal predecessors, (301), 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) [2022-09-16 11:40:21,763 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:40:21,763 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 74 [2022-09-16 11:40:21,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:40:21,822 INFO L130 PetriNetUnfolder]: 4/67 cut-off events. [2022-09-16 11:40:21,823 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2022-09-16 11:40:21,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 67 events. 4/67 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 29 event pairs, 0 based on Foata normal form. 2/69 useless extension candidates. Maximal degree in co-relation 102. Up to 9 conditions per place. [2022-09-16 11:40:21,823 INFO L137 encePairwiseOnDemand]: 66/74 looper letters, 0 selfloop transitions, 0 changer transitions 59/59 dead transitions. [2022-09-16 11:40:21,823 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 59 transitions, 198 flow [2022-09-16 11:40:21,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-16 11:40:21,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-09-16 11:40:21,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 400 transitions. [2022-09-16 11:40:21,825 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6756756756756757 [2022-09-16 11:40:21,825 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 400 transitions. [2022-09-16 11:40:21,825 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 400 transitions. [2022-09-16 11:40:21,825 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:40:21,825 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 400 transitions. [2022-09-16 11:40:21,826 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 50.0) internal successors, (400), 8 states have internal predecessors, (400), 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) [2022-09-16 11:40:21,827 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 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) [2022-09-16 11:40:21,828 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 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) [2022-09-16 11:40:21,828 INFO L175 Difference]: Start difference. First operand has 79 places, 58 transitions, 151 flow. Second operand 8 states and 400 transitions. [2022-09-16 11:40:21,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 59 transitions, 198 flow [2022-09-16 11:40:21,828 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 59 transitions, 178 flow, removed 2 selfloop flow, removed 7 redundant places. [2022-09-16 11:40:21,829 INFO L231 Difference]: Finished difference. Result has 71 places, 0 transitions, 0 flow [2022-09-16 11:40:21,829 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=71, PETRI_TRANSITIONS=0} [2022-09-16 11:40:21,829 INFO L287 CegarLoopForPetriNet]: 69 programPoint places, 2 predicate places. [2022-09-16 11:40:21,830 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 0 transitions, 0 flow [2022-09-16 11:40:21,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 50.166666666666664) internal successors, (301), 6 states have internal predecessors, (301), 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) [2022-09-16 11:40:21,832 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2022-09-16 11:40:21,833 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2022-09-16 11:40:21,833 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2022-09-16 11:40:21,833 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2022-09-16 11:40:21,833 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2022-09-16 11:40:21,833 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2022-09-16 11:40:21,833 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2022-09-16 11:40:21,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-09-16 11:40:21,834 INFO L444 BasicCegarLoop]: Path program histogram: [3, 3, 1, 1, 1, 1, 1] [2022-09-16 11:40:21,838 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 11:40:21,838 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 11:40:21,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 11:40:21 BasicIcfg [2022-09-16 11:40:21,842 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 11:40:21,842 INFO L158 Benchmark]: Toolchain (without parser) took 5380.23ms. Allocated memory was 166.7MB in the beginning and 200.3MB in the end (delta: 33.6MB). Free memory was 111.1MB in the beginning and 64.8MB in the end (delta: 46.3MB). Peak memory consumption was 80.5MB. Max. memory is 8.0GB. [2022-09-16 11:40:21,843 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 166.7MB. Free memory is still 129.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 11:40:21,843 INFO L158 Benchmark]: CACSL2BoogieTranslator took 672.36ms. Allocated memory is still 166.7MB. Free memory was 110.9MB in the beginning and 127.6MB in the end (delta: -16.6MB). Peak memory consumption was 14.5MB. Max. memory is 8.0GB. [2022-09-16 11:40:21,843 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.57ms. Allocated memory is still 166.7MB. Free memory was 127.6MB in the beginning and 125.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 11:40:21,843 INFO L158 Benchmark]: Boogie Preprocessor took 31.90ms. Allocated memory is still 166.7MB. Free memory was 125.1MB in the beginning and 123.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 11:40:21,844 INFO L158 Benchmark]: RCFGBuilder took 447.89ms. Allocated memory is still 166.7MB. Free memory was 123.7MB in the beginning and 110.8MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-09-16 11:40:21,844 INFO L158 Benchmark]: TraceAbstraction took 4156.01ms. Allocated memory was 166.7MB in the beginning and 200.3MB in the end (delta: 33.6MB). Free memory was 110.4MB in the beginning and 64.8MB in the end (delta: 45.6MB). Peak memory consumption was 80.7MB. Max. memory is 8.0GB. [2022-09-16 11:40:21,845 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 166.7MB. Free memory is still 129.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 672.36ms. Allocated memory is still 166.7MB. Free memory was 110.9MB in the beginning and 127.6MB in the end (delta: -16.6MB). Peak memory consumption was 14.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 66.57ms. Allocated memory is still 166.7MB. Free memory was 127.6MB in the beginning and 125.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.90ms. Allocated memory is still 166.7MB. Free memory was 125.1MB in the beginning and 123.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 447.89ms. Allocated memory is still 166.7MB. Free memory was 123.7MB in the beginning and 110.8MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 4156.01ms. Allocated memory was 166.7MB in the beginning and 200.3MB in the end (delta: 33.6MB). Free memory was 110.4MB in the beginning and 64.8MB in the end (delta: 45.6MB). Peak memory consumption was 80.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 937]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 937]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 926]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 926]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 93 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: 4.0s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 697 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 697 mSDsluCounter, 456 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 336 mSDsCounter, 81 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 943 IncrementalHoareTripleChecker+Invalid, 1024 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 81 mSolverCounterUnsat, 130 mSDtfsCounter, 943 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 150 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=342occurred in iteration=5, InterpolantAutomatonStates: 111, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 573 NumberOfCodeBlocks, 573 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 562 ConstructedInterpolants, 0 QuantifiedInterpolants, 3255 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-09-16 11:40:21,896 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...