/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/weaver/chl-file-item-trans.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 12:49:02,729 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 12:49:02,798 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-27 12:49:02,808 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 12:49:02,809 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 12:49:02,842 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 12:49:02,843 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 12:49:02,843 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 12:49:02,844 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 12:49:02,845 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 12:49:02,845 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 12:49:02,845 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 12:49:02,845 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 12:49:02,846 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 12:49:02,846 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 12:49:02,846 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 12:49:02,846 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 12:49:02,847 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 12:49:02,847 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 12:49:02,847 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 12:49:02,847 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 12:49:02,848 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 12:49:02,848 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 12:49:02,849 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 12:49:02,849 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 12:49:02,849 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 12:49:02,849 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 12:49:02,849 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 12:49:02,850 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 12:49:02,850 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 12:49:02,851 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 12:49:02,851 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 12:49:02,851 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 12:49:02,851 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 12:49:02,851 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 12:49:02,852 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 12:49:03,133 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 12:49:03,149 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 12:49:03,151 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 12:49:03,152 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 12:49:03,153 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 12:49:03,154 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-file-item-trans.wvr.c [2023-08-27 12:49:04,426 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 12:49:04,639 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 12:49:04,639 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-file-item-trans.wvr.c [2023-08-27 12:49:04,646 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a823549c/453c495266704b9c92ba3777566ba338/FLAG365d49274 [2023-08-27 12:49:04,657 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a823549c/453c495266704b9c92ba3777566ba338 [2023-08-27 12:49:04,659 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 12:49:04,660 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 12:49:04,661 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 12:49:04,661 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 12:49:04,664 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 12:49:04,664 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 12:49:04" (1/1) ... [2023-08-27 12:49:04,665 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@233d80d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:49:04, skipping insertion in model container [2023-08-27 12:49:04,665 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 12:49:04" (1/1) ... [2023-08-27 12:49:04,688 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 12:49:04,822 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 12:49:04,829 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 12:49:04,851 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 12:49:04,863 INFO L206 MainTranslator]: Completed translation [2023-08-27 12:49:04,864 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:49:04 WrapperNode [2023-08-27 12:49:04,864 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 12:49:04,865 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 12:49:04,865 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 12:49:04,865 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 12:49:04,871 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:49:04" (1/1) ... [2023-08-27 12:49:04,878 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:49:04" (1/1) ... [2023-08-27 12:49:04,901 INFO L138 Inliner]: procedures = 23, calls = 31, calls flagged for inlining = 9, calls inlined = 13, statements flattened = 246 [2023-08-27 12:49:04,901 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 12:49:04,902 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 12:49:04,902 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 12:49:04,902 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 12:49:04,909 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:49:04" (1/1) ... [2023-08-27 12:49:04,910 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:49:04" (1/1) ... [2023-08-27 12:49:04,913 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:49:04" (1/1) ... [2023-08-27 12:49:04,913 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:49:04" (1/1) ... [2023-08-27 12:49:04,918 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:49:04" (1/1) ... [2023-08-27 12:49:04,921 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:49:04" (1/1) ... [2023-08-27 12:49:04,923 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:49:04" (1/1) ... [2023-08-27 12:49:04,924 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:49:04" (1/1) ... [2023-08-27 12:49:04,927 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 12:49:04,927 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 12:49:04,927 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 12:49:04,927 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 12:49:04,928 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:49:04" (1/1) ... [2023-08-27 12:49:04,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 12:49:04,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 12:49:04,970 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-27 12:49:04,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-27 12:49:05,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 12:49:05,006 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-27 12:49:05,006 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-27 12:49:05,006 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-27 12:49:05,006 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-27 12:49:05,006 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-27 12:49:05,006 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-27 12:49:05,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 12:49:05,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 12:49:05,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 12:49:05,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 12:49:05,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 12:49:05,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-27 12:49:05,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 12:49:05,008 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-27 12:49:05,097 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 12:49:05,099 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 12:49:05,525 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 12:49:05,548 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 12:49:05,549 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-27 12:49:05,551 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 12:49:05 BoogieIcfgContainer [2023-08-27 12:49:05,551 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 12:49:05,553 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 12:49:05,553 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 12:49:05,556 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 12:49:05,556 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 12:49:04" (1/3) ... [2023-08-27 12:49:05,557 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@183db5c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 12:49:05, skipping insertion in model container [2023-08-27 12:49:05,557 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:49:04" (2/3) ... [2023-08-27 12:49:05,557 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@183db5c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 12:49:05, skipping insertion in model container [2023-08-27 12:49:05,557 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 12:49:05" (3/3) ... [2023-08-27 12:49:05,558 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-file-item-trans.wvr.c [2023-08-27 12:49:05,574 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 12:49:05,574 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2023-08-27 12:49:05,574 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 12:49:05,715 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-27 12:49:05,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 286 places, 301 transitions, 626 flow [2023-08-27 12:49:05,908 INFO L124 PetriNetUnfolderBase]: 25/298 cut-off events. [2023-08-27 12:49:05,908 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-27 12:49:05,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 311 conditions, 298 events. 25/298 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 818 event pairs, 0 based on Foata normal form. 0/254 useless extension candidates. Maximal degree in co-relation 217. Up to 2 conditions per place. [2023-08-27 12:49:05,919 INFO L82 GeneralOperation]: Start removeDead. Operand has 286 places, 301 transitions, 626 flow [2023-08-27 12:49:05,932 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 272 places, 287 transitions, 592 flow [2023-08-27 12:49:05,935 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 12:49:05,953 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 272 places, 287 transitions, 592 flow [2023-08-27 12:49:05,956 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 272 places, 287 transitions, 592 flow [2023-08-27 12:49:05,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 272 places, 287 transitions, 592 flow [2023-08-27 12:49:06,023 INFO L124 PetriNetUnfolderBase]: 25/287 cut-off events. [2023-08-27 12:49:06,024 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-27 12:49:06,030 INFO L83 FinitePrefix]: Finished finitePrefix Result has 300 conditions, 287 events. 25/287 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 817 event pairs, 0 based on Foata normal form. 0/244 useless extension candidates. Maximal degree in co-relation 217. Up to 2 conditions per place. [2023-08-27 12:49:06,044 INFO L119 LiptonReduction]: Number of co-enabled transitions 30888 [2023-08-27 12:49:20,300 INFO L134 LiptonReduction]: Checked pairs total: 30251 [2023-08-27 12:49:20,300 INFO L136 LiptonReduction]: Total number of compositions: 381 [2023-08-27 12:49:20,320 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 12:49:20,327 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;@453f8780, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 12:49:20,327 INFO L358 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2023-08-27 12:49:20,334 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 12:49:20,334 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-08-27 12:49:20,334 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 12:49:20,334 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:49:20,335 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 12:49:20,336 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-27 12:49:20,340 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:49:20,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1294822, now seen corresponding path program 1 times [2023-08-27 12:49:20,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:49:20,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991335455] [2023-08-27 12:49:20,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:49:20,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:49:20,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:49:20,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:49:20,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:49:20,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991335455] [2023-08-27 12:49:20,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991335455] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:49:20,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:49:20,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 12:49:20,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013137877] [2023-08-27 12:49:20,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:49:20,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-27 12:49:20,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:49:20,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-27 12:49:20,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-27 12:49:20,537 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 287 out of 682 [2023-08-27 12:49:20,540 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 34 transitions, 86 flow. Second operand has 2 states, 2 states have (on average 288.5) internal successors, (577), 2 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:20,540 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:49:20,541 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 287 of 682 [2023-08-27 12:49:20,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:49:20,933 INFO L124 PetriNetUnfolderBase]: 1125/1728 cut-off events. [2023-08-27 12:49:20,934 INFO L125 PetriNetUnfolderBase]: For 78/78 co-relation queries the response was YES. [2023-08-27 12:49:20,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3590 conditions, 1728 events. 1125/1728 cut-off events. For 78/78 co-relation queries the response was YES. Maximal size of possible extension queue 212. Compared 8266 event pairs, 1125 based on Foata normal form. 0/656 useless extension candidates. Maximal degree in co-relation 3104. Up to 1729 conditions per place. [2023-08-27 12:49:20,944 INFO L140 encePairwiseOnDemand]: 676/682 looper letters, 28 selfloop transitions, 0 changer transitions 0/28 dead transitions. [2023-08-27 12:49:20,945 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 28 transitions, 130 flow [2023-08-27 12:49:20,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-27 12:49:20,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-27 12:49:20,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 608 transitions. [2023-08-27 12:49:20,962 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44574780058651026 [2023-08-27 12:49:20,962 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 608 transitions. [2023-08-27 12:49:20,963 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 608 transitions. [2023-08-27 12:49:20,966 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:49:20,967 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 608 transitions. [2023-08-27 12:49:20,972 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 304.0) internal successors, (608), 2 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:20,979 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 682.0) internal successors, (2046), 3 states have internal predecessors, (2046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:20,980 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 682.0) internal successors, (2046), 3 states have internal predecessors, (2046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:20,982 INFO L175 Difference]: Start difference. First operand has 44 places, 34 transitions, 86 flow. Second operand 2 states and 608 transitions. [2023-08-27 12:49:20,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 28 transitions, 130 flow [2023-08-27 12:49:20,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 28 transitions, 118 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-27 12:49:20,994 INFO L231 Difference]: Finished difference. Result has 33 places, 28 transitions, 62 flow [2023-08-27 12:49:20,996 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=682, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=62, PETRI_PLACES=33, PETRI_TRANSITIONS=28} [2023-08-27 12:49:20,999 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -11 predicate places. [2023-08-27 12:49:20,999 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 28 transitions, 62 flow [2023-08-27 12:49:20,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 288.5) internal successors, (577), 2 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:21,000 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:49:21,000 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 12:49:21,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 12:49:21,001 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-27 12:49:21,008 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:49:21,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1294821, now seen corresponding path program 1 times [2023-08-27 12:49:21,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:49:21,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669548305] [2023-08-27 12:49:21,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:49:21,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:49:21,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:49:21,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:49:21,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:49:21,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669548305] [2023-08-27 12:49:21,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669548305] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:49:21,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:49:21,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 12:49:21,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729222722] [2023-08-27 12:49:21,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:49:21,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 12:49:21,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:49:21,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 12:49:21,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 12:49:21,104 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 283 out of 682 [2023-08-27 12:49:21,105 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 28 transitions, 62 flow. Second operand has 3 states, 3 states have (on average 284.0) internal successors, (852), 3 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:21,105 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:49:21,106 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 283 of 682 [2023-08-27 12:49:21,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:49:21,317 INFO L124 PetriNetUnfolderBase]: 777/1212 cut-off events. [2023-08-27 12:49:21,318 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 12:49:21,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2458 conditions, 1212 events. 777/1212 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 5499 event pairs, 777 based on Foata normal form. 0/502 useless extension candidates. Maximal degree in co-relation 2455. Up to 1212 conditions per place. [2023-08-27 12:49:21,324 INFO L140 encePairwiseOnDemand]: 679/682 looper letters, 25 selfloop transitions, 1 changer transitions 0/26 dead transitions. [2023-08-27 12:49:21,324 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 26 transitions, 110 flow [2023-08-27 12:49:21,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 12:49:21,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 12:49:21,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 877 transitions. [2023-08-27 12:49:21,327 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4286412512218964 [2023-08-27 12:49:21,327 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 877 transitions. [2023-08-27 12:49:21,328 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 877 transitions. [2023-08-27 12:49:21,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:49:21,328 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 877 transitions. [2023-08-27 12:49:21,330 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 292.3333333333333) internal successors, (877), 3 states have internal predecessors, (877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:21,334 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 682.0) internal successors, (2728), 4 states have internal predecessors, (2728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:21,336 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 682.0) internal successors, (2728), 4 states have internal predecessors, (2728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:21,336 INFO L175 Difference]: Start difference. First operand has 33 places, 28 transitions, 62 flow. Second operand 3 states and 877 transitions. [2023-08-27 12:49:21,336 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 26 transitions, 110 flow [2023-08-27 12:49:21,337 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 26 transitions, 110 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-27 12:49:21,338 INFO L231 Difference]: Finished difference. Result has 33 places, 26 transitions, 60 flow [2023-08-27 12:49:21,338 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=682, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=60, PETRI_PLACES=33, PETRI_TRANSITIONS=26} [2023-08-27 12:49:21,339 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -11 predicate places. [2023-08-27 12:49:21,339 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 26 transitions, 60 flow [2023-08-27 12:49:21,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 284.0) internal successors, (852), 3 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:21,340 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:49:21,341 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 12:49:21,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-27 12:49:21,341 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-27 12:49:21,343 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:49:21,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1294836, now seen corresponding path program 1 times [2023-08-27 12:49:21,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:49:21,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016415385] [2023-08-27 12:49:21,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:49:21,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:49:21,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:49:21,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:49:21,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:49:21,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016415385] [2023-08-27 12:49:21,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016415385] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:49:21,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:49:21,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 12:49:21,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762837870] [2023-08-27 12:49:21,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:49:21,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 12:49:21,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:49:21,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 12:49:21,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 12:49:21,419 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 283 out of 682 [2023-08-27 12:49:21,421 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 26 transitions, 60 flow. Second operand has 3 states, 3 states have (on average 284.0) internal successors, (852), 3 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:21,421 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:49:21,421 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 283 of 682 [2023-08-27 12:49:21,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:49:21,599 INFO L124 PetriNetUnfolderBase]: 493/788 cut-off events. [2023-08-27 12:49:21,599 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 12:49:21,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1602 conditions, 788 events. 493/788 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 3292 event pairs, 493 based on Foata normal form. 0/368 useless extension candidates. Maximal degree in co-relation 1598. Up to 788 conditions per place. [2023-08-27 12:49:21,603 INFO L140 encePairwiseOnDemand]: 679/682 looper letters, 23 selfloop transitions, 1 changer transitions 0/24 dead transitions. [2023-08-27 12:49:21,603 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 24 transitions, 104 flow [2023-08-27 12:49:21,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 12:49:21,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 12:49:21,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 875 transitions. [2023-08-27 12:49:21,606 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.427663734115347 [2023-08-27 12:49:21,606 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 875 transitions. [2023-08-27 12:49:21,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 875 transitions. [2023-08-27 12:49:21,607 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:49:21,607 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 875 transitions. [2023-08-27 12:49:21,609 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 291.6666666666667) internal successors, (875), 3 states have internal predecessors, (875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:21,612 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 682.0) internal successors, (2728), 4 states have internal predecessors, (2728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:21,614 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 682.0) internal successors, (2728), 4 states have internal predecessors, (2728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:21,614 INFO L175 Difference]: Start difference. First operand has 33 places, 26 transitions, 60 flow. Second operand 3 states and 875 transitions. [2023-08-27 12:49:21,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 24 transitions, 104 flow [2023-08-27 12:49:21,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 24 transitions, 103 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 12:49:21,615 INFO L231 Difference]: Finished difference. Result has 32 places, 24 transitions, 57 flow [2023-08-27 12:49:21,615 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=682, PETRI_DIFFERENCE_MINUEND_FLOW=55, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=57, PETRI_PLACES=32, PETRI_TRANSITIONS=24} [2023-08-27 12:49:21,616 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -12 predicate places. [2023-08-27 12:49:21,616 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 24 transitions, 57 flow [2023-08-27 12:49:21,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 284.0) internal successors, (852), 3 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:21,616 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:49:21,617 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 12:49:21,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-27 12:49:21,617 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-27 12:49:21,617 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:49:21,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1294849, now seen corresponding path program 1 times [2023-08-27 12:49:21,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:49:21,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906406017] [2023-08-27 12:49:21,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:49:21,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:49:21,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:49:21,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:49:21,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:49:21,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906406017] [2023-08-27 12:49:21,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906406017] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:49:21,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:49:21,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 12:49:21,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044521924] [2023-08-27 12:49:21,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:49:21,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 12:49:21,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:49:21,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 12:49:21,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 12:49:21,670 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 283 out of 682 [2023-08-27 12:49:21,671 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 24 transitions, 57 flow. Second operand has 3 states, 3 states have (on average 284.0) internal successors, (852), 3 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:21,672 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:49:21,672 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 283 of 682 [2023-08-27 12:49:21,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:49:21,786 INFO L124 PetriNetUnfolderBase]: 315/518 cut-off events. [2023-08-27 12:49:21,786 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 12:49:21,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1058 conditions, 518 events. 315/518 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 1982 event pairs, 315 based on Foata normal form. 0/274 useless extension candidates. Maximal degree in co-relation 1054. Up to 518 conditions per place. [2023-08-27 12:49:21,789 INFO L140 encePairwiseOnDemand]: 679/682 looper letters, 21 selfloop transitions, 1 changer transitions 0/22 dead transitions. [2023-08-27 12:49:21,789 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 22 transitions, 97 flow [2023-08-27 12:49:21,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 12:49:21,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 12:49:21,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 873 transitions. [2023-08-27 12:49:21,792 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42668621700879766 [2023-08-27 12:49:21,792 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 873 transitions. [2023-08-27 12:49:21,792 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 873 transitions. [2023-08-27 12:49:21,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:49:21,793 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 873 transitions. [2023-08-27 12:49:21,795 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 291.0) internal successors, (873), 3 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:21,798 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 682.0) internal successors, (2728), 4 states have internal predecessors, (2728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:21,799 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 682.0) internal successors, (2728), 4 states have internal predecessors, (2728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:21,799 INFO L175 Difference]: Start difference. First operand has 32 places, 24 transitions, 57 flow. Second operand 3 states and 873 transitions. [2023-08-27 12:49:21,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 22 transitions, 97 flow [2023-08-27 12:49:21,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 22 transitions, 96 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 12:49:21,800 INFO L231 Difference]: Finished difference. Result has 31 places, 22 transitions, 54 flow [2023-08-27 12:49:21,800 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=682, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=54, PETRI_PLACES=31, PETRI_TRANSITIONS=22} [2023-08-27 12:49:21,801 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -13 predicate places. [2023-08-27 12:49:21,801 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 22 transitions, 54 flow [2023-08-27 12:49:21,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 284.0) internal successors, (852), 3 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:21,802 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:49:21,802 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 12:49:21,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-27 12:49:21,802 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-27 12:49:21,803 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:49:21,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1294850, now seen corresponding path program 1 times [2023-08-27 12:49:21,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:49:21,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444280482] [2023-08-27 12:49:21,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:49:21,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:49:21,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:49:21,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:49:21,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:49:21,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444280482] [2023-08-27 12:49:21,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444280482] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:49:21,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:49:21,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 12:49:21,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600805718] [2023-08-27 12:49:21,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:49:21,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 12:49:21,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:49:21,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 12:49:21,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 12:49:21,845 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 283 out of 682 [2023-08-27 12:49:21,846 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 22 transitions, 54 flow. Second operand has 3 states, 3 states have (on average 284.0) internal successors, (852), 3 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:21,846 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:49:21,846 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 283 of 682 [2023-08-27 12:49:21,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:49:21,926 INFO L124 PetriNetUnfolderBase]: 173/300 cut-off events. [2023-08-27 12:49:21,927 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 12:49:21,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 618 conditions, 300 events. 173/300 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 997 event pairs, 173 based on Foata normal form. 0/192 useless extension candidates. Maximal degree in co-relation 614. Up to 300 conditions per place. [2023-08-27 12:49:21,928 INFO L140 encePairwiseOnDemand]: 679/682 looper letters, 19 selfloop transitions, 1 changer transitions 0/20 dead transitions. [2023-08-27 12:49:21,928 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 20 transitions, 90 flow [2023-08-27 12:49:21,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 12:49:21,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 12:49:21,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 871 transitions. [2023-08-27 12:49:21,931 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4257086999022483 [2023-08-27 12:49:21,931 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 871 transitions. [2023-08-27 12:49:21,931 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 871 transitions. [2023-08-27 12:49:21,932 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:49:21,932 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 871 transitions. [2023-08-27 12:49:21,934 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 290.3333333333333) internal successors, (871), 3 states have internal predecessors, (871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:21,937 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 682.0) internal successors, (2728), 4 states have internal predecessors, (2728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:21,938 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 682.0) internal successors, (2728), 4 states have internal predecessors, (2728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:21,938 INFO L175 Difference]: Start difference. First operand has 31 places, 22 transitions, 54 flow. Second operand 3 states and 871 transitions. [2023-08-27 12:49:21,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 20 transitions, 90 flow [2023-08-27 12:49:21,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 20 transitions, 89 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 12:49:21,939 INFO L231 Difference]: Finished difference. Result has 30 places, 20 transitions, 51 flow [2023-08-27 12:49:21,939 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=682, PETRI_DIFFERENCE_MINUEND_FLOW=49, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=51, PETRI_PLACES=30, PETRI_TRANSITIONS=20} [2023-08-27 12:49:21,940 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -14 predicate places. [2023-08-27 12:49:21,940 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 20 transitions, 51 flow [2023-08-27 12:49:21,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 284.0) internal successors, (852), 3 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:21,941 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:49:21,941 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-27 12:49:21,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-27 12:49:21,941 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-27 12:49:21,942 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:49:21,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1244278255, now seen corresponding path program 1 times [2023-08-27 12:49:21,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:49:21,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854684563] [2023-08-27 12:49:21,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:49:21,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:49:21,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:49:21,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:49:21,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:49:21,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854684563] [2023-08-27 12:49:21,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854684563] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:49:21,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:49:21,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 12:49:21,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767934583] [2023-08-27 12:49:21,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:49:21,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 12:49:21,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:49:21,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 12:49:21,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 12:49:21,977 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 283 out of 682 [2023-08-27 12:49:21,978 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 20 transitions, 51 flow. Second operand has 3 states, 3 states have (on average 284.6666666666667) internal successors, (854), 3 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:21,978 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:49:21,978 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 283 of 682 [2023-08-27 12:49:21,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:49:22,058 INFO L124 PetriNetUnfolderBase]: 93/172 cut-off events. [2023-08-27 12:49:22,059 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 12:49:22,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 361 conditions, 172 events. 93/172 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 473 event pairs, 93 based on Foata normal form. 0/130 useless extension candidates. Maximal degree in co-relation 357. Up to 172 conditions per place. [2023-08-27 12:49:22,060 INFO L140 encePairwiseOnDemand]: 679/682 looper letters, 17 selfloop transitions, 1 changer transitions 0/18 dead transitions. [2023-08-27 12:49:22,060 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 18 transitions, 83 flow [2023-08-27 12:49:22,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 12:49:22,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 12:49:22,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 869 transitions. [2023-08-27 12:49:22,063 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42473118279569894 [2023-08-27 12:49:22,063 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 869 transitions. [2023-08-27 12:49:22,063 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 869 transitions. [2023-08-27 12:49:22,063 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:49:22,063 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 869 transitions. [2023-08-27 12:49:22,065 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 289.6666666666667) internal successors, (869), 3 states have internal predecessors, (869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:22,068 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 682.0) internal successors, (2728), 4 states have internal predecessors, (2728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:22,070 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 682.0) internal successors, (2728), 4 states have internal predecessors, (2728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:22,070 INFO L175 Difference]: Start difference. First operand has 30 places, 20 transitions, 51 flow. Second operand 3 states and 869 transitions. [2023-08-27 12:49:22,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 18 transitions, 83 flow [2023-08-27 12:49:22,070 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 18 transitions, 82 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 12:49:22,071 INFO L231 Difference]: Finished difference. Result has 29 places, 18 transitions, 48 flow [2023-08-27 12:49:22,071 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=682, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=48, PETRI_PLACES=29, PETRI_TRANSITIONS=18} [2023-08-27 12:49:22,071 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -15 predicate places. [2023-08-27 12:49:22,071 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 18 transitions, 48 flow [2023-08-27 12:49:22,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 284.6666666666667) internal successors, (854), 3 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:22,072 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:49:22,072 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-27 12:49:22,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-27 12:49:22,073 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-27 12:49:22,073 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:49:22,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1244278194, now seen corresponding path program 1 times [2023-08-27 12:49:22,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:49:22,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146266339] [2023-08-27 12:49:22,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:49:22,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:49:22,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:49:22,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:49:22,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:49:22,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146266339] [2023-08-27 12:49:22,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146266339] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:49:22,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:49:22,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 12:49:22,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781765468] [2023-08-27 12:49:22,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:49:22,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 12:49:22,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:49:22,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 12:49:22,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 12:49:22,110 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 283 out of 682 [2023-08-27 12:49:22,111 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 18 transitions, 48 flow. Second operand has 3 states, 3 states have (on average 284.6666666666667) internal successors, (854), 3 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:22,111 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:49:22,111 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 283 of 682 [2023-08-27 12:49:22,111 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:49:22,156 INFO L124 PetriNetUnfolderBase]: 37/80 cut-off events. [2023-08-27 12:49:22,156 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 12:49:22,157 INFO L83 FinitePrefix]: Finished finitePrefix Result has 176 conditions, 80 events. 37/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 150 event pairs, 37 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 172. Up to 80 conditions per place. [2023-08-27 12:49:22,157 INFO L140 encePairwiseOnDemand]: 679/682 looper letters, 15 selfloop transitions, 1 changer transitions 0/16 dead transitions. [2023-08-27 12:49:22,157 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 16 transitions, 76 flow [2023-08-27 12:49:22,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 12:49:22,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 12:49:22,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 867 transitions. [2023-08-27 12:49:22,160 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4237536656891496 [2023-08-27 12:49:22,160 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 867 transitions. [2023-08-27 12:49:22,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 867 transitions. [2023-08-27 12:49:22,160 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:49:22,160 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 867 transitions. [2023-08-27 12:49:22,162 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 289.0) internal successors, (867), 3 states have internal predecessors, (867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:22,165 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 682.0) internal successors, (2728), 4 states have internal predecessors, (2728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:22,165 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 682.0) internal successors, (2728), 4 states have internal predecessors, (2728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:22,165 INFO L175 Difference]: Start difference. First operand has 29 places, 18 transitions, 48 flow. Second operand 3 states and 867 transitions. [2023-08-27 12:49:22,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 16 transitions, 76 flow [2023-08-27 12:49:22,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 16 transitions, 75 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 12:49:22,166 INFO L231 Difference]: Finished difference. Result has 28 places, 16 transitions, 45 flow [2023-08-27 12:49:22,166 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=682, PETRI_DIFFERENCE_MINUEND_FLOW=43, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=45, PETRI_PLACES=28, PETRI_TRANSITIONS=16} [2023-08-27 12:49:22,167 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -16 predicate places. [2023-08-27 12:49:22,167 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 16 transitions, 45 flow [2023-08-27 12:49:22,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 284.6666666666667) internal successors, (854), 3 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:22,167 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:49:22,168 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 12:49:22,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-27 12:49:22,168 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-27 12:49:22,168 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:49:22,168 INFO L85 PathProgramCache]: Analyzing trace with hash -97335300, now seen corresponding path program 1 times [2023-08-27 12:49:22,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:49:22,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705613244] [2023-08-27 12:49:22,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:49:22,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:49:22,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:49:23,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:49:23,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:49:23,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705613244] [2023-08-27 12:49:23,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705613244] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:49:23,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:49:23,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 12:49:23,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563156406] [2023-08-27 12:49:23,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:49:23,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 12:49:23,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:49:23,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 12:49:23,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-27 12:49:23,553 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 682 [2023-08-27 12:49:23,554 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 16 transitions, 45 flow. Second operand has 5 states, 5 states have (on average 232.2) internal successors, (1161), 5 states have internal predecessors, (1161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:23,554 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:49:23,554 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 682 [2023-08-27 12:49:23,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:49:23,783 INFO L124 PetriNetUnfolderBase]: 41/109 cut-off events. [2023-08-27 12:49:23,784 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-27 12:49:23,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 236 conditions, 109 events. 41/109 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 366 event pairs, 3 based on Foata normal form. 1/110 useless extension candidates. Maximal degree in co-relation 232. Up to 50 conditions per place. [2023-08-27 12:49:23,785 INFO L140 encePairwiseOnDemand]: 677/682 looper letters, 28 selfloop transitions, 6 changer transitions 5/39 dead transitions. [2023-08-27 12:49:23,785 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 39 transitions, 178 flow [2023-08-27 12:49:23,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-27 12:49:23,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-27 12:49:23,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1185 transitions. [2023-08-27 12:49:23,789 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.34750733137829914 [2023-08-27 12:49:23,789 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1185 transitions. [2023-08-27 12:49:23,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1185 transitions. [2023-08-27 12:49:23,789 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:49:23,790 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1185 transitions. [2023-08-27 12:49:23,792 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 237.0) internal successors, (1185), 5 states have internal predecessors, (1185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:23,796 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 682.0) internal successors, (4092), 6 states have internal predecessors, (4092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:23,797 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 682.0) internal successors, (4092), 6 states have internal predecessors, (4092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:23,797 INFO L175 Difference]: Start difference. First operand has 28 places, 16 transitions, 45 flow. Second operand 5 states and 1185 transitions. [2023-08-27 12:49:23,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 39 transitions, 178 flow [2023-08-27 12:49:23,797 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 39 transitions, 177 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 12:49:23,798 INFO L231 Difference]: Finished difference. Result has 33 places, 19 transitions, 74 flow [2023-08-27 12:49:23,798 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=682, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=74, PETRI_PLACES=33, PETRI_TRANSITIONS=19} [2023-08-27 12:49:23,799 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -11 predicate places. [2023-08-27 12:49:23,799 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 19 transitions, 74 flow [2023-08-27 12:49:23,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 232.2) internal successors, (1161), 5 states have internal predecessors, (1161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:23,800 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:49:23,800 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 12:49:23,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-27 12:49:23,800 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-27 12:49:23,800 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:49:23,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1877197934, now seen corresponding path program 2 times [2023-08-27 12:49:23,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:49:23,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108332905] [2023-08-27 12:49:23,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:49:23,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:49:23,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:49:24,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:49:24,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:49:24,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108332905] [2023-08-27 12:49:24,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108332905] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:49:24,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:49:24,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 12:49:24,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746627119] [2023-08-27 12:49:24,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:49:24,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 12:49:24,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:49:24,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 12:49:24,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-27 12:49:24,966 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 682 [2023-08-27 12:49:24,968 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 19 transitions, 74 flow. Second operand has 5 states, 5 states have (on average 232.2) internal successors, (1161), 5 states have internal predecessors, (1161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:24,968 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:49:24,968 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 682 [2023-08-27 12:49:24,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:49:25,256 INFO L124 PetriNetUnfolderBase]: 39/122 cut-off events. [2023-08-27 12:49:25,257 INFO L125 PetriNetUnfolderBase]: For 63/63 co-relation queries the response was YES. [2023-08-27 12:49:25,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 350 conditions, 122 events. 39/122 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 446 event pairs, 2 based on Foata normal form. 1/123 useless extension candidates. Maximal degree in co-relation 344. Up to 54 conditions per place. [2023-08-27 12:49:25,258 INFO L140 encePairwiseOnDemand]: 677/682 looper letters, 32 selfloop transitions, 7 changer transitions 8/47 dead transitions. [2023-08-27 12:49:25,258 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 47 transitions, 250 flow [2023-08-27 12:49:25,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 12:49:25,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 12:49:25,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1420 transitions. [2023-08-27 12:49:25,262 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.34701857282502446 [2023-08-27 12:49:25,262 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1420 transitions. [2023-08-27 12:49:25,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1420 transitions. [2023-08-27 12:49:25,263 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:49:25,263 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1420 transitions. [2023-08-27 12:49:25,266 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 236.66666666666666) internal successors, (1420), 6 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:25,270 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 682.0) internal successors, (4774), 7 states have internal predecessors, (4774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:25,271 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 682.0) internal successors, (4774), 7 states have internal predecessors, (4774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:25,272 INFO L175 Difference]: Start difference. First operand has 33 places, 19 transitions, 74 flow. Second operand 6 states and 1420 transitions. [2023-08-27 12:49:25,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 47 transitions, 250 flow [2023-08-27 12:49:25,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 47 transitions, 249 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 12:49:25,273 INFO L231 Difference]: Finished difference. Result has 40 places, 22 transitions, 113 flow [2023-08-27 12:49:25,273 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=682, PETRI_DIFFERENCE_MINUEND_FLOW=73, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=113, PETRI_PLACES=40, PETRI_TRANSITIONS=22} [2023-08-27 12:49:25,274 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -4 predicate places. [2023-08-27 12:49:25,274 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 22 transitions, 113 flow [2023-08-27 12:49:25,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 232.2) internal successors, (1161), 5 states have internal predecessors, (1161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:25,275 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:49:25,275 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 12:49:25,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-27 12:49:25,275 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-27 12:49:25,275 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:49:25,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1467631372, now seen corresponding path program 3 times [2023-08-27 12:49:25,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:49:25,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813768334] [2023-08-27 12:49:25,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:49:25,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:49:25,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:49:26,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:49:26,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:49:26,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813768334] [2023-08-27 12:49:26,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813768334] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:49:26,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:49:26,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 12:49:26,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395759007] [2023-08-27 12:49:26,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:49:26,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 12:49:26,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:49:26,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 12:49:26,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-27 12:49:26,295 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 682 [2023-08-27 12:49:26,296 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 22 transitions, 113 flow. Second operand has 5 states, 5 states have (on average 232.2) internal successors, (1161), 5 states have internal predecessors, (1161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:26,296 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:49:26,297 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 682 [2023-08-27 12:49:26,297 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:49:26,576 INFO L124 PetriNetUnfolderBase]: 34/112 cut-off events. [2023-08-27 12:49:26,577 INFO L125 PetriNetUnfolderBase]: For 135/135 co-relation queries the response was YES. [2023-08-27 12:49:26,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 375 conditions, 112 events. 34/112 cut-off events. For 135/135 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 397 event pairs, 4 based on Foata normal form. 1/113 useless extension candidates. Maximal degree in co-relation 366. Up to 62 conditions per place. [2023-08-27 12:49:26,578 INFO L140 encePairwiseOnDemand]: 677/682 looper letters, 27 selfloop transitions, 6 changer transitions 11/44 dead transitions. [2023-08-27 12:49:26,578 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 44 transitions, 263 flow [2023-08-27 12:49:26,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 12:49:26,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 12:49:26,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1417 transitions. [2023-08-27 12:49:26,583 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.34628543499511244 [2023-08-27 12:49:26,583 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1417 transitions. [2023-08-27 12:49:26,583 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1417 transitions. [2023-08-27 12:49:26,584 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:49:26,584 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1417 transitions. [2023-08-27 12:49:26,586 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 236.16666666666666) internal successors, (1417), 6 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:26,591 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 682.0) internal successors, (4774), 7 states have internal predecessors, (4774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:26,604 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 682.0) internal successors, (4774), 7 states have internal predecessors, (4774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:26,604 INFO L175 Difference]: Start difference. First operand has 40 places, 22 transitions, 113 flow. Second operand 6 states and 1417 transitions. [2023-08-27 12:49:26,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 44 transitions, 263 flow [2023-08-27 12:49:26,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 44 transitions, 243 flow, removed 7 selfloop flow, removed 3 redundant places. [2023-08-27 12:49:26,606 INFO L231 Difference]: Finished difference. Result has 43 places, 20 transitions, 103 flow [2023-08-27 12:49:26,607 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=682, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=103, PETRI_PLACES=43, PETRI_TRANSITIONS=20} [2023-08-27 12:49:26,607 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -1 predicate places. [2023-08-27 12:49:26,607 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 20 transitions, 103 flow [2023-08-27 12:49:26,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 232.2) internal successors, (1161), 5 states have internal predecessors, (1161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:26,608 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:49:26,608 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 12:49:26,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-27 12:49:26,609 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-27 12:49:26,609 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:49:26,609 INFO L85 PathProgramCache]: Analyzing trace with hash -752452926, now seen corresponding path program 4 times [2023-08-27 12:49:26,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:49:26,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679922702] [2023-08-27 12:49:26,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:49:26,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:49:26,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:49:27,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:49:27,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:49:27,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679922702] [2023-08-27 12:49:27,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679922702] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:49:27,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:49:27,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 12:49:27,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897692927] [2023-08-27 12:49:27,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:49:27,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 12:49:27,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:49:27,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 12:49:27,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-27 12:49:27,400 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 682 [2023-08-27 12:49:27,401 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 20 transitions, 103 flow. Second operand has 5 states, 5 states have (on average 232.2) internal successors, (1161), 5 states have internal predecessors, (1161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:27,401 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:49:27,401 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 682 [2023-08-27 12:49:27,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:49:27,679 INFO L124 PetriNetUnfolderBase]: 18/68 cut-off events. [2023-08-27 12:49:27,679 INFO L125 PetriNetUnfolderBase]: For 131/131 co-relation queries the response was YES. [2023-08-27 12:49:27,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 241 conditions, 68 events. 18/68 cut-off events. For 131/131 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 176 event pairs, 1 based on Foata normal form. 1/69 useless extension candidates. Maximal degree in co-relation 232. Up to 21 conditions per place. [2023-08-27 12:49:27,679 INFO L140 encePairwiseOnDemand]: 677/682 looper letters, 24 selfloop transitions, 5 changer transitions 12/41 dead transitions. [2023-08-27 12:49:27,680 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 41 transitions, 238 flow [2023-08-27 12:49:27,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 12:49:27,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 12:49:27,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1415 transitions. [2023-08-27 12:49:27,685 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.34579667644183776 [2023-08-27 12:49:27,685 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1415 transitions. [2023-08-27 12:49:27,685 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1415 transitions. [2023-08-27 12:49:27,686 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:49:27,686 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1415 transitions. [2023-08-27 12:49:27,688 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 235.83333333333334) internal successors, (1415), 6 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:27,693 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 682.0) internal successors, (4774), 7 states have internal predecessors, (4774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:27,693 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 682.0) internal successors, (4774), 7 states have internal predecessors, (4774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:27,694 INFO L175 Difference]: Start difference. First operand has 43 places, 20 transitions, 103 flow. Second operand 6 states and 1415 transitions. [2023-08-27 12:49:27,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 41 transitions, 238 flow [2023-08-27 12:49:27,696 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 41 transitions, 223 flow, removed 4 selfloop flow, removed 4 redundant places. [2023-08-27 12:49:27,697 INFO L231 Difference]: Finished difference. Result has 44 places, 18 transitions, 86 flow [2023-08-27 12:49:27,697 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=682, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=86, PETRI_PLACES=44, PETRI_TRANSITIONS=18} [2023-08-27 12:49:27,697 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 0 predicate places. [2023-08-27 12:49:27,698 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 18 transitions, 86 flow [2023-08-27 12:49:27,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 232.2) internal successors, (1161), 5 states have internal predecessors, (1161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:27,699 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:49:27,699 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 12:49:27,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-27 12:49:27,699 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-27 12:49:27,699 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:49:27,699 INFO L85 PathProgramCache]: Analyzing trace with hash 159403950, now seen corresponding path program 5 times [2023-08-27 12:49:27,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:49:27,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692114803] [2023-08-27 12:49:27,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:49:27,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:49:27,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:49:28,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:49:28,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:49:28,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692114803] [2023-08-27 12:49:28,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692114803] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:49:28,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:49:28,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 12:49:28,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764852943] [2023-08-27 12:49:28,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:49:28,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 12:49:28,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:49:28,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 12:49:28,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-27 12:49:28,495 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 682 [2023-08-27 12:49:28,496 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 18 transitions, 86 flow. Second operand has 5 states, 5 states have (on average 232.2) internal successors, (1161), 5 states have internal predecessors, (1161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:28,496 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:49:28,496 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 682 [2023-08-27 12:49:28,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:49:28,694 INFO L124 PetriNetUnfolderBase]: 7/37 cut-off events. [2023-08-27 12:49:28,694 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2023-08-27 12:49:28,694 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 37 events. 7/37 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 55 event pairs, 0 based on Foata normal form. 1/38 useless extension candidates. Maximal degree in co-relation 123. Up to 14 conditions per place. [2023-08-27 12:49:28,694 INFO L140 encePairwiseOnDemand]: 677/682 looper letters, 17 selfloop transitions, 3 changer transitions 8/28 dead transitions. [2023-08-27 12:49:28,694 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 28 transitions, 166 flow [2023-08-27 12:49:28,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 12:49:28,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 12:49:28,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1402 transitions. [2023-08-27 12:49:28,699 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.34261974584555227 [2023-08-27 12:49:28,699 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1402 transitions. [2023-08-27 12:49:28,699 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1402 transitions. [2023-08-27 12:49:28,700 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:49:28,700 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1402 transitions. [2023-08-27 12:49:28,702 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 233.66666666666666) internal successors, (1402), 6 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:28,707 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 682.0) internal successors, (4774), 7 states have internal predecessors, (4774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:28,707 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 682.0) internal successors, (4774), 7 states have internal predecessors, (4774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:28,707 INFO L175 Difference]: Start difference. First operand has 44 places, 18 transitions, 86 flow. Second operand 6 states and 1402 transitions. [2023-08-27 12:49:28,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 28 transitions, 166 flow [2023-08-27 12:49:28,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 28 transitions, 150 flow, removed 1 selfloop flow, removed 6 redundant places. [2023-08-27 12:49:28,709 INFO L231 Difference]: Finished difference. Result has 41 places, 16 transitions, 66 flow [2023-08-27 12:49:28,709 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=682, PETRI_DIFFERENCE_MINUEND_FLOW=71, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=66, PETRI_PLACES=41, PETRI_TRANSITIONS=16} [2023-08-27 12:49:28,709 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -3 predicate places. [2023-08-27 12:49:28,709 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 16 transitions, 66 flow [2023-08-27 12:49:28,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 232.2) internal successors, (1161), 5 states have internal predecessors, (1161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:28,710 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:49:28,710 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 12:49:28,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-27 12:49:28,710 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-08-27 12:49:28,710 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:49:28,710 INFO L85 PathProgramCache]: Analyzing trace with hash 2082633426, now seen corresponding path program 6 times [2023-08-27 12:49:28,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:49:28,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513809618] [2023-08-27 12:49:28,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:49:28,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:49:28,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:49:29,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:49:29,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:49:29,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513809618] [2023-08-27 12:49:29,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513809618] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:49:29,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:49:29,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 12:49:29,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310232770] [2023-08-27 12:49:29,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:49:29,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 12:49:29,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:49:29,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 12:49:29,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-27 12:49:29,468 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 682 [2023-08-27 12:49:29,469 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 16 transitions, 66 flow. Second operand has 5 states, 5 states have (on average 232.2) internal successors, (1161), 5 states have internal predecessors, (1161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:29,469 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:49:29,469 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 682 [2023-08-27 12:49:29,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:49:29,645 INFO L124 PetriNetUnfolderBase]: 5/25 cut-off events. [2023-08-27 12:49:29,645 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-08-27 12:49:29,645 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 25 events. 5/25 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 19 event pairs, 0 based on Foata normal form. 1/26 useless extension candidates. Maximal degree in co-relation 83. Up to 10 conditions per place. [2023-08-27 12:49:29,646 INFO L140 encePairwiseOnDemand]: 677/682 looper letters, 0 selfloop transitions, 0 changer transitions 20/20 dead transitions. [2023-08-27 12:49:29,646 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 20 transitions, 113 flow [2023-08-27 12:49:29,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 12:49:29,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 12:49:29,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1395 transitions. [2023-08-27 12:49:29,650 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3409090909090909 [2023-08-27 12:49:29,650 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1395 transitions. [2023-08-27 12:49:29,650 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1395 transitions. [2023-08-27 12:49:29,651 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:49:29,651 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1395 transitions. [2023-08-27 12:49:29,654 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 232.5) internal successors, (1395), 6 states have internal predecessors, (1395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:29,658 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 682.0) internal successors, (4774), 7 states have internal predecessors, (4774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:29,659 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 682.0) internal successors, (4774), 7 states have internal predecessors, (4774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:29,659 INFO L175 Difference]: Start difference. First operand has 41 places, 16 transitions, 66 flow. Second operand 6 states and 1395 transitions. [2023-08-27 12:49:29,659 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 20 transitions, 113 flow [2023-08-27 12:49:29,659 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 20 transitions, 98 flow, removed 0 selfloop flow, removed 7 redundant places. [2023-08-27 12:49:29,660 INFO L231 Difference]: Finished difference. Result has 36 places, 0 transitions, 0 flow [2023-08-27 12:49:29,660 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=682, PETRI_DIFFERENCE_MINUEND_FLOW=47, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=36, PETRI_TRANSITIONS=0} [2023-08-27 12:49:29,661 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -8 predicate places. [2023-08-27 12:49:29,661 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 0 transitions, 0 flow [2023-08-27 12:49:29,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 232.2) internal successors, (1161), 5 states have internal predecessors, (1161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:49:29,663 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 40 remaining) [2023-08-27 12:49:29,664 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 40 remaining) [2023-08-27 12:49:29,664 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 40 remaining) [2023-08-27 12:49:29,664 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 40 remaining) [2023-08-27 12:49:29,664 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 40 remaining) [2023-08-27 12:49:29,664 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 40 remaining) [2023-08-27 12:49:29,664 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 40 remaining) [2023-08-27 12:49:29,664 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 40 remaining) [2023-08-27 12:49:29,664 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 40 remaining) [2023-08-27 12:49:29,664 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 40 remaining) [2023-08-27 12:49:29,664 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 40 remaining) [2023-08-27 12:49:29,665 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 40 remaining) [2023-08-27 12:49:29,665 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 40 remaining) [2023-08-27 12:49:29,665 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 40 remaining) [2023-08-27 12:49:29,665 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 40 remaining) [2023-08-27 12:49:29,665 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 40 remaining) [2023-08-27 12:49:29,665 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 40 remaining) [2023-08-27 12:49:29,665 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 40 remaining) [2023-08-27 12:49:29,665 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (21 of 40 remaining) [2023-08-27 12:49:29,665 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 40 remaining) [2023-08-27 12:49:29,665 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 40 remaining) [2023-08-27 12:49:29,665 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 40 remaining) [2023-08-27 12:49:29,666 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 40 remaining) [2023-08-27 12:49:29,666 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 40 remaining) [2023-08-27 12:49:29,666 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 40 remaining) [2023-08-27 12:49:29,666 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 40 remaining) [2023-08-27 12:49:29,666 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 40 remaining) [2023-08-27 12:49:29,666 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 40 remaining) [2023-08-27 12:49:29,666 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 40 remaining) [2023-08-27 12:49:29,666 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 40 remaining) [2023-08-27 12:49:29,666 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 40 remaining) [2023-08-27 12:49:29,666 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 40 remaining) [2023-08-27 12:49:29,666 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 40 remaining) [2023-08-27 12:49:29,667 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 40 remaining) [2023-08-27 12:49:29,667 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 40 remaining) [2023-08-27 12:49:29,667 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 40 remaining) [2023-08-27 12:49:29,667 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 40 remaining) [2023-08-27 12:49:29,667 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 40 remaining) [2023-08-27 12:49:29,667 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 40 remaining) [2023-08-27 12:49:29,667 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 40 remaining) [2023-08-27 12:49:29,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-27 12:49:29,667 INFO L445 BasicCegarLoop]: Path program histogram: [6, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 12:49:29,672 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 12:49:29,672 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 12:49:29,676 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 12:49:29 BasicIcfg [2023-08-27 12:49:29,676 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 12:49:29,677 INFO L158 Benchmark]: Toolchain (without parser) took 25016.57ms. Allocated memory was 354.4MB in the beginning and 664.8MB in the end (delta: 310.4MB). Free memory was 330.5MB in the beginning and 396.6MB in the end (delta: -66.1MB). Peak memory consumption was 246.8MB. Max. memory is 16.0GB. [2023-08-27 12:49:29,677 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 354.4MB. Free memory is still 330.7MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 12:49:29,677 INFO L158 Benchmark]: CACSL2BoogieTranslator took 202.86ms. Allocated memory is still 354.4MB. Free memory was 330.5MB in the beginning and 318.8MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-27 12:49:29,677 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.24ms. Allocated memory is still 354.4MB. Free memory was 318.8MB in the beginning and 316.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 12:49:29,678 INFO L158 Benchmark]: Boogie Preprocessor took 25.11ms. Allocated memory is still 354.4MB. Free memory was 316.3MB in the beginning and 314.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 12:49:29,678 INFO L158 Benchmark]: RCFGBuilder took 623.90ms. Allocated memory is still 354.4MB. Free memory was 314.6MB in the beginning and 291.6MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. [2023-08-27 12:49:29,678 INFO L158 Benchmark]: TraceAbstraction took 24123.54ms. Allocated memory was 354.4MB in the beginning and 664.8MB in the end (delta: 310.4MB). Free memory was 290.6MB in the beginning and 396.6MB in the end (delta: -106.0MB). Peak memory consumption was 206.9MB. Max. memory is 16.0GB. [2023-08-27 12:49:29,679 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 354.4MB. Free memory is still 330.7MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 202.86ms. Allocated memory is still 354.4MB. Free memory was 330.5MB in the beginning and 318.8MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 36.24ms. Allocated memory is still 354.4MB. Free memory was 318.8MB in the beginning and 316.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 25.11ms. Allocated memory is still 354.4MB. Free memory was 316.3MB in the beginning and 314.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 623.90ms. Allocated memory is still 354.4MB. Free memory was 314.6MB in the beginning and 291.6MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. * TraceAbstraction took 24123.54ms. Allocated memory was 354.4MB in the beginning and 664.8MB in the end (delta: 310.4MB). Free memory was 290.6MB in the beginning and 396.6MB in the end (delta: -106.0MB). Peak memory consumption was 206.9MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.3s, 272 PlacesBefore, 44 PlacesAfterwards, 287 TransitionsBefore, 34 TransitionsAfterwards, 30888 CoEnabledTransitionPairs, 7 FixpointIterations, 63 TrivialSequentialCompositions, 217 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 73 ConcurrentYvCompositions, 25 ChoiceCompositions, 381 TotalNumberOfCompositions, 30251 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 30251, independent: 30251, independent conditional: 0, independent unconditional: 30251, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 18430, independent: 18430, independent conditional: 0, independent unconditional: 18430, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 30251, independent: 11821, independent conditional: 0, independent unconditional: 11821, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 18430, unknown conditional: 0, unknown unconditional: 18430] , Statistics on independence cache: Total cache size (in pairs): 108, Positive cache size: 108, Positive conditional cache size: 0, Positive unconditional cache size: 108, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 457 locations, 40 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: 23.9s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 14.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 304 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 304 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 550 IncrementalHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 0 mSDtfsCounter, 550 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=113occurred in iteration=9, InterpolantAutomatonStates: 55, 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, 0.3s SatisfiabilityAnalysisTime, 5.9s InterpolantComputationTime, 121 NumberOfCodeBlocks, 121 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 108 ConstructedInterpolants, 0 QuantifiedInterpolants, 2017 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 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 19 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-27 12:49:29,708 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...