/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 -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-chromosome-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 23:26:19,512 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 23:26:19,578 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 [2023-08-26 23:26:19,582 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 23:26:19,583 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 23:26:19,623 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 23:26:19,624 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 23:26:19,625 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 23:26:19,625 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 23:26:19,629 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 23:26:19,629 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 23:26:19,629 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 23:26:19,630 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 23:26:19,631 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 23:26:19,631 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 23:26:19,631 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 23:26:19,631 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 23:26:19,632 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 23:26:19,632 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 23:26:19,632 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 23:26:19,632 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 23:26:19,633 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 23:26:19,633 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 23:26:19,634 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 23:26:19,634 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 23:26:19,634 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 23:26:19,634 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 23:26:19,635 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 23:26:19,635 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 23:26:19,635 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 23:26:19,636 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 23:26:19,636 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 23:26:19,636 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 23:26:19,636 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 23:26:19,637 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 23:26:19,637 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-26 23:26:19,953 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 23:26:19,980 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 23:26:19,982 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 23:26:19,983 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 23:26:19,983 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 23:26:19,985 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-chromosome-symm.wvr.c [2023-08-26 23:26:21,266 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 23:26:21,492 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 23:26:21,493 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-symm.wvr.c [2023-08-26 23:26:21,501 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/169101e6d/9bdd7d5b739b47ca8d1647d3782d0901/FLAGf6688d5bc [2023-08-26 23:26:21,515 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/169101e6d/9bdd7d5b739b47ca8d1647d3782d0901 [2023-08-26 23:26:21,517 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 23:26:21,518 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 23:26:21,519 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 23:26:21,520 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 23:26:21,522 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 23:26:21,523 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 11:26:21" (1/1) ... [2023-08-26 23:26:21,523 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d897b86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:26:21, skipping insertion in model container [2023-08-26 23:26:21,524 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 11:26:21" (1/1) ... [2023-08-26 23:26:21,544 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 23:26:21,744 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 23:26:21,753 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 23:26:21,789 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 23:26:21,806 INFO L206 MainTranslator]: Completed translation [2023-08-26 23:26:21,807 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:26:21 WrapperNode [2023-08-26 23:26:21,807 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 23:26:21,808 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 23:26:21,808 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 23:26:21,808 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 23:26:21,814 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:26:21" (1/1) ... [2023-08-26 23:26:21,830 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:26:21" (1/1) ... [2023-08-26 23:26:21,866 INFO L138 Inliner]: procedures = 25, calls = 38, calls flagged for inlining = 16, calls inlined = 20, statements flattened = 238 [2023-08-26 23:26:21,867 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 23:26:21,867 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 23:26:21,867 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 23:26:21,867 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 23:26:21,876 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:26:21" (1/1) ... [2023-08-26 23:26:21,876 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:26:21" (1/1) ... [2023-08-26 23:26:21,882 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:26:21" (1/1) ... [2023-08-26 23:26:21,883 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:26:21" (1/1) ... [2023-08-26 23:26:21,890 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:26:21" (1/1) ... [2023-08-26 23:26:21,893 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:26:21" (1/1) ... [2023-08-26 23:26:21,902 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:26:21" (1/1) ... [2023-08-26 23:26:21,904 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:26:21" (1/1) ... [2023-08-26 23:26:21,907 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 23:26:21,907 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 23:26:21,908 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 23:26:21,908 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 23:26:21,908 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:26:21" (1/1) ... [2023-08-26 23:26:21,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 23:26:21,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 23:26:21,936 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) [2023-08-26 23:26:21,939 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 [2023-08-26 23:26:21,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 23:26:21,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 23:26:21,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 23:26:21,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 23:26:21,962 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-26 23:26:21,962 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-26 23:26:21,962 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-26 23:26:21,962 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-26 23:26:21,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 23:26:21,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-26 23:26:21,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 23:26:21,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 23:26:21,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 23:26:21,964 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 23:26:22,061 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 23:26:22,069 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 23:26:22,537 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 23:26:22,546 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 23:26:22,547 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-08-26 23:26:22,553 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 11:26:22 BoogieIcfgContainer [2023-08-26 23:26:22,553 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 23:26:22,555 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 23:26:22,555 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 23:26:22,557 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 23:26:22,557 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 11:26:21" (1/3) ... [2023-08-26 23:26:22,558 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6755b52d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 11:26:22, skipping insertion in model container [2023-08-26 23:26:22,558 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:26:21" (2/3) ... [2023-08-26 23:26:22,558 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6755b52d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 11:26:22, skipping insertion in model container [2023-08-26 23:26:22,559 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 11:26:22" (3/3) ... [2023-08-26 23:26:22,560 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-chromosome-symm.wvr.c [2023-08-26 23:26:22,575 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 23:26:22,576 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 21 error locations. [2023-08-26 23:26:22,576 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 23:26:22,680 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-26 23:26:22,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 276 places, 294 transitions, 604 flow [2023-08-26 23:26:22,882 INFO L124 PetriNetUnfolderBase]: 25/292 cut-off events. [2023-08-26 23:26:22,883 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-26 23:26:22,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 301 conditions, 292 events. 25/292 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 507 event pairs, 0 based on Foata normal form. 0/246 useless extension candidates. Maximal degree in co-relation 185. Up to 2 conditions per place. [2023-08-26 23:26:22,897 INFO L82 GeneralOperation]: Start removeDead. Operand has 276 places, 294 transitions, 604 flow [2023-08-26 23:26:22,903 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 265 places, 283 transitions, 578 flow [2023-08-26 23:26:22,906 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 23:26:22,921 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 265 places, 283 transitions, 578 flow [2023-08-26 23:26:22,925 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 265 places, 283 transitions, 578 flow [2023-08-26 23:26:22,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 265 places, 283 transitions, 578 flow [2023-08-26 23:26:22,982 INFO L124 PetriNetUnfolderBase]: 25/283 cut-off events. [2023-08-26 23:26:22,982 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-26 23:26:22,994 INFO L83 FinitePrefix]: Finished finitePrefix Result has 292 conditions, 283 events. 25/283 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 505 event pairs, 0 based on Foata normal form. 0/238 useless extension candidates. Maximal degree in co-relation 185. Up to 2 conditions per place. [2023-08-26 23:26:23,001 INFO L119 LiptonReduction]: Number of co-enabled transitions 12212 [2023-08-26 23:26:37,339 INFO L134 LiptonReduction]: Checked pairs total: 13295 [2023-08-26 23:26:37,340 INFO L136 LiptonReduction]: Total number of compositions: 373 [2023-08-26 23:26:37,352 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 23:26:37,357 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;@1badcdb2, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 23:26:37,357 INFO L358 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2023-08-26 23:26:37,359 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 23:26:37,360 INFO L124 PetriNetUnfolderBase]: 1/2 cut-off events. [2023-08-26 23:26:37,360 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 23:26:37,360 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:26:37,361 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-26 23:26:37,361 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-08-26 23:26:37,364 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:26:37,365 INFO L85 PathProgramCache]: Analyzing trace with hash 39447, now seen corresponding path program 1 times [2023-08-26 23:26:37,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:26:37,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350471978] [2023-08-26 23:26:37,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:26:37,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:26:37,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:26:37,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 23:26:37,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:26:37,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350471978] [2023-08-26 23:26:37,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350471978] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:26:37,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 23:26:37,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 23:26:37,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068964699] [2023-08-26 23:26:37,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:26:37,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 23:26:37,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:26:37,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 23:26:37,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 23:26:37,667 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 256 out of 667 [2023-08-26 23:26:37,670 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 40 transitions, 92 flow. Second operand has 3 states, 3 states have (on average 256.6666666666667) internal successors, (770), 3 states have internal predecessors, (770), 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) [2023-08-26 23:26:37,670 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:26:37,671 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 256 of 667 [2023-08-26 23:26:37,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:26:37,833 INFO L124 PetriNetUnfolderBase]: 279/482 cut-off events. [2023-08-26 23:26:37,834 INFO L125 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES. [2023-08-26 23:26:37,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 999 conditions, 482 events. 279/482 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 2007 event pairs, 237 based on Foata normal form. 0/220 useless extension candidates. Maximal degree in co-relation 900. Up to 477 conditions per place. [2023-08-26 23:26:37,840 INFO L140 encePairwiseOnDemand]: 658/667 looper letters, 31 selfloop transitions, 2 changer transitions 0/33 dead transitions. [2023-08-26 23:26:37,840 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 33 transitions, 144 flow [2023-08-26 23:26:37,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 23:26:37,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 23:26:37,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 808 transitions. [2023-08-26 23:26:37,859 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40379810094952523 [2023-08-26 23:26:37,860 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 808 transitions. [2023-08-26 23:26:37,861 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 808 transitions. [2023-08-26 23:26:37,863 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:26:37,865 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 808 transitions. [2023-08-26 23:26:37,869 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 269.3333333333333) internal successors, (808), 3 states have internal predecessors, (808), 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) [2023-08-26 23:26:37,882 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 667.0) internal successors, (2668), 4 states have internal predecessors, (2668), 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) [2023-08-26 23:26:37,884 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 667.0) internal successors, (2668), 4 states have internal predecessors, (2668), 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) [2023-08-26 23:26:37,886 INFO L175 Difference]: Start difference. First operand has 43 places, 40 transitions, 92 flow. Second operand 3 states and 808 transitions. [2023-08-26 23:26:37,886 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 33 transitions, 144 flow [2023-08-26 23:26:37,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 33 transitions, 136 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-26 23:26:37,891 INFO L231 Difference]: Finished difference. Result has 34 places, 33 transitions, 74 flow [2023-08-26 23:26:37,895 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=667, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=34, PETRI_TRANSITIONS=33} [2023-08-26 23:26:37,899 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -9 predicate places. [2023-08-26 23:26:37,899 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 33 transitions, 74 flow [2023-08-26 23:26:37,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 256.6666666666667) internal successors, (770), 3 states have internal predecessors, (770), 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) [2023-08-26 23:26:37,900 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:26:37,900 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-26 23:26:37,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 23:26:37,901 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-08-26 23:26:37,902 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:26:37,902 INFO L85 PathProgramCache]: Analyzing trace with hash 39475, now seen corresponding path program 1 times [2023-08-26 23:26:37,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:26:37,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485261974] [2023-08-26 23:26:37,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:26:37,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:26:37,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:26:37,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 23:26:37,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:26:37,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485261974] [2023-08-26 23:26:37,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485261974] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:26:37,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 23:26:37,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 23:26:37,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900458467] [2023-08-26 23:26:37,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:26:37,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 23:26:37,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:26:37,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 23:26:37,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 23:26:37,990 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 256 out of 667 [2023-08-26 23:26:37,991 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 33 transitions, 74 flow. Second operand has 3 states, 3 states have (on average 256.6666666666667) internal successors, (770), 3 states have internal predecessors, (770), 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) [2023-08-26 23:26:37,991 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:26:37,991 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 256 of 667 [2023-08-26 23:26:37,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:26:38,115 INFO L124 PetriNetUnfolderBase]: 281/486 cut-off events. [2023-08-26 23:26:38,115 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-26 23:26:38,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 989 conditions, 486 events. 281/486 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 2021 event pairs, 237 based on Foata normal form. 0/224 useless extension candidates. Maximal degree in co-relation 961. Up to 484 conditions per place. [2023-08-26 23:26:38,118 INFO L140 encePairwiseOnDemand]: 660/667 looper letters, 32 selfloop transitions, 5 changer transitions 0/37 dead transitions. [2023-08-26 23:26:38,118 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 37 transitions, 158 flow [2023-08-26 23:26:38,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 23:26:38,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 23:26:38,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 807 transitions. [2023-08-26 23:26:38,121 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4032983508245877 [2023-08-26 23:26:38,121 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 807 transitions. [2023-08-26 23:26:38,121 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 807 transitions. [2023-08-26 23:26:38,121 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:26:38,121 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 807 transitions. [2023-08-26 23:26:38,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 269.0) internal successors, (807), 3 states have internal predecessors, (807), 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) [2023-08-26 23:26:38,126 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 667.0) internal successors, (2668), 4 states have internal predecessors, (2668), 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) [2023-08-26 23:26:38,128 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 667.0) internal successors, (2668), 4 states have internal predecessors, (2668), 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) [2023-08-26 23:26:38,128 INFO L175 Difference]: Start difference. First operand has 34 places, 33 transitions, 74 flow. Second operand 3 states and 807 transitions. [2023-08-26 23:26:38,128 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 37 transitions, 158 flow [2023-08-26 23:26:38,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 37 transitions, 152 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 23:26:38,129 INFO L231 Difference]: Finished difference. Result has 36 places, 37 transitions, 110 flow [2023-08-26 23:26:38,130 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=667, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=110, PETRI_PLACES=36, PETRI_TRANSITIONS=37} [2023-08-26 23:26:38,130 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -7 predicate places. [2023-08-26 23:26:38,130 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 37 transitions, 110 flow [2023-08-26 23:26:38,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 256.6666666666667) internal successors, (770), 3 states have internal predecessors, (770), 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) [2023-08-26 23:26:38,131 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:26:38,131 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-26 23:26:38,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 23:26:38,132 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-08-26 23:26:38,132 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:26:38,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1226496, now seen corresponding path program 1 times [2023-08-26 23:26:38,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:26:38,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076641621] [2023-08-26 23:26:38,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:26:38,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:26:38,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:26:38,186 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 23:26:38,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:26:38,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076641621] [2023-08-26 23:26:38,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076641621] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 23:26:38,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1435005611] [2023-08-26 23:26:38,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:26:38,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 23:26:38,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 23:26:38,190 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 23:26:38,217 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-26 23:26:38,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:26:38,278 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-26 23:26:38,281 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 23:26:38,306 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 23:26:38,307 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 23:26:38,341 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 23:26:38,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1435005611] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 23:26:38,342 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 23:26:38,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 4 [2023-08-26 23:26:38,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910987258] [2023-08-26 23:26:38,342 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 23:26:38,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 23:26:38,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:26:38,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 23:26:38,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 23:26:38,345 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 256 out of 667 [2023-08-26 23:26:38,347 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 37 transitions, 110 flow. Second operand has 6 states, 6 states have (on average 257.0) internal successors, (1542), 6 states have internal predecessors, (1542), 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) [2023-08-26 23:26:38,347 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:26:38,347 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 256 of 667 [2023-08-26 23:26:38,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:26:38,551 INFO L124 PetriNetUnfolderBase]: 287/498 cut-off events. [2023-08-26 23:26:38,551 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-26 23:26:38,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1042 conditions, 498 events. 287/498 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 2054 event pairs, 237 based on Foata normal form. 0/233 useless extension candidates. Maximal degree in co-relation 961. Up to 487 conditions per place. [2023-08-26 23:26:38,555 INFO L140 encePairwiseOnDemand]: 660/667 looper letters, 32 selfloop transitions, 17 changer transitions 0/49 dead transitions. [2023-08-26 23:26:38,556 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 49 transitions, 262 flow [2023-08-26 23:26:38,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 23:26:38,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 23:26:38,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1591 transitions. [2023-08-26 23:26:38,563 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3975512243878061 [2023-08-26 23:26:38,563 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1591 transitions. [2023-08-26 23:26:38,563 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1591 transitions. [2023-08-26 23:26:38,565 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:26:38,565 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1591 transitions. [2023-08-26 23:26:38,573 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 265.1666666666667) internal successors, (1591), 6 states have internal predecessors, (1591), 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) [2023-08-26 23:26:38,579 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 667.0) internal successors, (4669), 7 states have internal predecessors, (4669), 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) [2023-08-26 23:26:38,581 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 667.0) internal successors, (4669), 7 states have internal predecessors, (4669), 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) [2023-08-26 23:26:38,581 INFO L175 Difference]: Start difference. First operand has 36 places, 37 transitions, 110 flow. Second operand 6 states and 1591 transitions. [2023-08-26 23:26:38,582 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 49 transitions, 262 flow [2023-08-26 23:26:38,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 49 transitions, 246 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 23:26:38,583 INFO L231 Difference]: Finished difference. Result has 42 places, 49 transitions, 218 flow [2023-08-26 23:26:38,584 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=667, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=218, PETRI_PLACES=42, PETRI_TRANSITIONS=49} [2023-08-26 23:26:38,584 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -1 predicate places. [2023-08-26 23:26:38,585 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 49 transitions, 218 flow [2023-08-26 23:26:38,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 257.0) internal successors, (1542), 6 states have internal predecessors, (1542), 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) [2023-08-26 23:26:38,586 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:26:38,586 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1] [2023-08-26 23:26:38,595 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-26 23:26:38,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 23:26:38,792 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-08-26 23:26:38,793 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:26:38,793 INFO L85 PathProgramCache]: Analyzing trace with hash -2113411725, now seen corresponding path program 2 times [2023-08-26 23:26:38,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:26:38,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082312523] [2023-08-26 23:26:38,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:26:38,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:26:38,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:26:38,913 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 23:26:38,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:26:38,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082312523] [2023-08-26 23:26:38,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082312523] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 23:26:38,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [491522645] [2023-08-26 23:26:38,914 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-26 23:26:38,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 23:26:38,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 23:26:38,915 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 23:26:38,957 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-26 23:26:39,037 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-26 23:26:39,037 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 23:26:39,038 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-26 23:26:39,039 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 23:26:39,053 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-26 23:26:39,053 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-26 23:26:39,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [491522645] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:26:39,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-26 23:26:39,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [5] total 6 [2023-08-26 23:26:39,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439564822] [2023-08-26 23:26:39,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:26:39,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 23:26:39,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:26:39,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 23:26:39,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-08-26 23:26:39,059 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 258 out of 667 [2023-08-26 23:26:39,060 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 49 transitions, 218 flow. Second operand has 3 states, 3 states have (on average 259.0) internal successors, (777), 3 states have internal predecessors, (777), 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) [2023-08-26 23:26:39,060 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:26:39,060 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 258 of 667 [2023-08-26 23:26:39,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:26:39,159 INFO L124 PetriNetUnfolderBase]: 287/496 cut-off events. [2023-08-26 23:26:39,159 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2023-08-26 23:26:39,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1063 conditions, 496 events. 287/496 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 2047 event pairs, 237 based on Foata normal form. 2/236 useless extension candidates. Maximal degree in co-relation 1010. Up to 496 conditions per place. [2023-08-26 23:26:39,162 INFO L140 encePairwiseOnDemand]: 664/667 looper letters, 46 selfloop transitions, 1 changer transitions 0/47 dead transitions. [2023-08-26 23:26:39,162 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 47 transitions, 292 flow [2023-08-26 23:26:39,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 23:26:39,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 23:26:39,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 807 transitions. [2023-08-26 23:26:39,165 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4032983508245877 [2023-08-26 23:26:39,165 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 807 transitions. [2023-08-26 23:26:39,165 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 807 transitions. [2023-08-26 23:26:39,166 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:26:39,166 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 807 transitions. [2023-08-26 23:26:39,167 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 269.0) internal successors, (807), 3 states have internal predecessors, (807), 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) [2023-08-26 23:26:39,171 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 667.0) internal successors, (2668), 4 states have internal predecessors, (2668), 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) [2023-08-26 23:26:39,172 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 667.0) internal successors, (2668), 4 states have internal predecessors, (2668), 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) [2023-08-26 23:26:39,172 INFO L175 Difference]: Start difference. First operand has 42 places, 49 transitions, 218 flow. Second operand 3 states and 807 transitions. [2023-08-26 23:26:39,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 47 transitions, 292 flow [2023-08-26 23:26:39,176 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 47 transitions, 234 flow, removed 12 selfloop flow, removed 5 redundant places. [2023-08-26 23:26:39,177 INFO L231 Difference]: Finished difference. Result has 37 places, 47 transitions, 142 flow [2023-08-26 23:26:39,177 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=667, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=142, PETRI_PLACES=37, PETRI_TRANSITIONS=47} [2023-08-26 23:26:39,179 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -6 predicate places. [2023-08-26 23:26:39,179 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 47 transitions, 142 flow [2023-08-26 23:26:39,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 259.0) internal successors, (777), 3 states have internal predecessors, (777), 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) [2023-08-26 23:26:39,179 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:26:39,180 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-26 23:26:39,188 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-26 23:26:39,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-08-26 23:26:39,385 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-08-26 23:26:39,385 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:26:39,386 INFO L85 PathProgramCache]: Analyzing trace with hash -511383935, now seen corresponding path program 1 times [2023-08-26 23:26:39,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:26:39,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067385861] [2023-08-26 23:26:39,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:26:39,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:26:39,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:26:39,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 23:26:39,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:26:39,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067385861] [2023-08-26 23:26:39,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067385861] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:26:39,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 23:26:39,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 23:26:39,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727686034] [2023-08-26 23:26:39,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:26:39,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 23:26:39,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:26:39,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 23:26:39,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 23:26:39,480 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 265 out of 667 [2023-08-26 23:26:39,481 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 47 transitions, 142 flow. Second operand has 3 states, 3 states have (on average 267.3333333333333) internal successors, (802), 3 states have internal predecessors, (802), 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) [2023-08-26 23:26:39,481 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:26:39,482 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 265 of 667 [2023-08-26 23:26:39,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:26:39,646 INFO L124 PetriNetUnfolderBase]: 485/838 cut-off events. [2023-08-26 23:26:39,646 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-26 23:26:39,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1720 conditions, 838 events. 485/838 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 4198 event pairs, 237 based on Foata normal form. 0/384 useless extension candidates. Maximal degree in co-relation 1712. Up to 497 conditions per place. [2023-08-26 23:26:39,650 INFO L140 encePairwiseOnDemand]: 663/667 looper letters, 67 selfloop transitions, 2 changer transitions 0/69 dead transitions. [2023-08-26 23:26:39,650 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 69 transitions, 327 flow [2023-08-26 23:26:39,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 23:26:39,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 23:26:39,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 850 transitions. [2023-08-26 23:26:39,653 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42478760619690153 [2023-08-26 23:26:39,653 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 850 transitions. [2023-08-26 23:26:39,653 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 850 transitions. [2023-08-26 23:26:39,654 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:26:39,654 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 850 transitions. [2023-08-26 23:26:39,655 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 283.3333333333333) internal successors, (850), 3 states have internal predecessors, (850), 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) [2023-08-26 23:26:39,659 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 667.0) internal successors, (2668), 4 states have internal predecessors, (2668), 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) [2023-08-26 23:26:39,660 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 667.0) internal successors, (2668), 4 states have internal predecessors, (2668), 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) [2023-08-26 23:26:39,660 INFO L175 Difference]: Start difference. First operand has 37 places, 47 transitions, 142 flow. Second operand 3 states and 850 transitions. [2023-08-26 23:26:39,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 69 transitions, 327 flow [2023-08-26 23:26:39,662 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 69 transitions, 326 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 23:26:39,663 INFO L231 Difference]: Finished difference. Result has 39 places, 48 transitions, 155 flow [2023-08-26 23:26:39,663 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=667, PETRI_DIFFERENCE_MINUEND_FLOW=141, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=155, PETRI_PLACES=39, PETRI_TRANSITIONS=48} [2023-08-26 23:26:39,665 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -4 predicate places. [2023-08-26 23:26:39,665 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 48 transitions, 155 flow [2023-08-26 23:26:39,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 267.3333333333333) internal successors, (802), 3 states have internal predecessors, (802), 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) [2023-08-26 23:26:39,669 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:26:39,669 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-26 23:26:39,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-26 23:26:39,670 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-08-26 23:26:39,670 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:26:39,670 INFO L85 PathProgramCache]: Analyzing trace with hash -511384011, now seen corresponding path program 1 times [2023-08-26 23:26:39,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:26:39,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948324721] [2023-08-26 23:26:39,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:26:39,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:26:39,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:26:39,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 23:26:39,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:26:39,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948324721] [2023-08-26 23:26:39,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948324721] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:26:39,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 23:26:39,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 23:26:39,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967532142] [2023-08-26 23:26:39,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:26:39,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 23:26:39,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:26:39,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 23:26:39,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 23:26:39,736 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 248 out of 667 [2023-08-26 23:26:39,738 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 48 transitions, 155 flow. Second operand has 3 states, 3 states have (on average 250.33333333333334) internal successors, (751), 3 states have internal predecessors, (751), 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) [2023-08-26 23:26:39,738 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:26:39,738 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 248 of 667 [2023-08-26 23:26:39,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:26:39,917 INFO L124 PetriNetUnfolderBase]: 483/836 cut-off events. [2023-08-26 23:26:39,917 INFO L125 PetriNetUnfolderBase]: For 91/91 co-relation queries the response was YES. [2023-08-26 23:26:39,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1823 conditions, 836 events. 483/836 cut-off events. For 91/91 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 3978 event pairs, 419 based on Foata normal form. 0/420 useless extension candidates. Maximal degree in co-relation 1814. Up to 832 conditions per place. [2023-08-26 23:26:39,921 INFO L140 encePairwiseOnDemand]: 662/667 looper letters, 39 selfloop transitions, 7 changer transitions 0/46 dead transitions. [2023-08-26 23:26:39,921 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 46 transitions, 239 flow [2023-08-26 23:26:39,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 23:26:39,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 23:26:39,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 779 transitions. [2023-08-26 23:26:39,924 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3893053473263368 [2023-08-26 23:26:39,924 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 779 transitions. [2023-08-26 23:26:39,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 779 transitions. [2023-08-26 23:26:39,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:26:39,924 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 779 transitions. [2023-08-26 23:26:39,926 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 259.6666666666667) internal successors, (779), 3 states have internal predecessors, (779), 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) [2023-08-26 23:26:39,929 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 667.0) internal successors, (2668), 4 states have internal predecessors, (2668), 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) [2023-08-26 23:26:39,929 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 667.0) internal successors, (2668), 4 states have internal predecessors, (2668), 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) [2023-08-26 23:26:39,929 INFO L175 Difference]: Start difference. First operand has 39 places, 48 transitions, 155 flow. Second operand 3 states and 779 transitions. [2023-08-26 23:26:39,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 46 transitions, 239 flow [2023-08-26 23:26:39,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 46 transitions, 237 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 23:26:39,931 INFO L231 Difference]: Finished difference. Result has 40 places, 46 transitions, 159 flow [2023-08-26 23:26:39,931 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=667, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=159, PETRI_PLACES=40, PETRI_TRANSITIONS=46} [2023-08-26 23:26:39,932 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -3 predicate places. [2023-08-26 23:26:39,932 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 46 transitions, 159 flow [2023-08-26 23:26:39,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 250.33333333333334) internal successors, (751), 3 states have internal predecessors, (751), 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) [2023-08-26 23:26:39,932 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:26:39,932 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 23:26:39,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-26 23:26:39,933 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-08-26 23:26:39,933 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:26:39,933 INFO L85 PathProgramCache]: Analyzing trace with hash 973669750, now seen corresponding path program 1 times [2023-08-26 23:26:39,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:26:39,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6764459] [2023-08-26 23:26:39,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:26:39,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:26:39,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:26:40,009 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-26 23:26:40,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:26:40,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6764459] [2023-08-26 23:26:40,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6764459] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 23:26:40,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [237153987] [2023-08-26 23:26:40,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:26:40,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 23:26:40,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 23:26:40,011 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 23:26:40,014 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-26 23:26:40,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:26:40,101 INFO L262 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-26 23:26:40,102 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 23:26:40,124 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-26 23:26:40,124 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 23:26:40,137 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-26 23:26:40,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [237153987] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 23:26:40,137 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 23:26:40,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2023-08-26 23:26:40,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695263808] [2023-08-26 23:26:40,138 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 23:26:40,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-26 23:26:40,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:26:40,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-26 23:26:40,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2023-08-26 23:26:40,140 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 248 out of 667 [2023-08-26 23:26:40,142 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 46 transitions, 159 flow. Second operand has 8 states, 8 states have (on average 249.875) internal successors, (1999), 8 states have internal predecessors, (1999), 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) [2023-08-26 23:26:40,142 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:26:40,142 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 248 of 667 [2023-08-26 23:26:40,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:26:40,289 INFO L124 PetriNetUnfolderBase]: 477/830 cut-off events. [2023-08-26 23:26:40,289 INFO L125 PetriNetUnfolderBase]: For 56/56 co-relation queries the response was YES. [2023-08-26 23:26:40,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1791 conditions, 830 events. 477/830 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 3959 event pairs, 419 based on Foata normal form. 3/424 useless extension candidates. Maximal degree in co-relation 1781. Up to 823 conditions per place. [2023-08-26 23:26:40,294 INFO L140 encePairwiseOnDemand]: 662/667 looper letters, 30 selfloop transitions, 10 changer transitions 0/40 dead transitions. [2023-08-26 23:26:40,294 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 40 transitions, 209 flow [2023-08-26 23:26:40,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 23:26:40,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 23:26:40,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1533 transitions. [2023-08-26 23:26:40,298 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3830584707646177 [2023-08-26 23:26:40,298 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1533 transitions. [2023-08-26 23:26:40,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1533 transitions. [2023-08-26 23:26:40,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:26:40,299 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1533 transitions. [2023-08-26 23:26:40,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 255.5) internal successors, (1533), 6 states have internal predecessors, (1533), 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) [2023-08-26 23:26:40,307 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 667.0) internal successors, (4669), 7 states have internal predecessors, (4669), 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) [2023-08-26 23:26:40,308 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 667.0) internal successors, (4669), 7 states have internal predecessors, (4669), 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) [2023-08-26 23:26:40,308 INFO L175 Difference]: Start difference. First operand has 40 places, 46 transitions, 159 flow. Second operand 6 states and 1533 transitions. [2023-08-26 23:26:40,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 40 transitions, 209 flow [2023-08-26 23:26:40,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 40 transitions, 201 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 23:26:40,309 INFO L231 Difference]: Finished difference. Result has 43 places, 40 transitions, 141 flow [2023-08-26 23:26:40,310 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=667, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=141, PETRI_PLACES=43, PETRI_TRANSITIONS=40} [2023-08-26 23:26:40,310 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 0 predicate places. [2023-08-26 23:26:40,310 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 40 transitions, 141 flow [2023-08-26 23:26:40,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 249.875) internal successors, (1999), 8 states have internal predecessors, (1999), 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) [2023-08-26 23:26:40,311 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:26:40,311 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 23:26:40,321 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-26 23:26:40,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 23:26:40,517 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-08-26 23:26:40,518 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:26:40,518 INFO L85 PathProgramCache]: Analyzing trace with hash 265990133, now seen corresponding path program 2 times [2023-08-26 23:26:40,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:26:40,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617675963] [2023-08-26 23:26:40,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:26:40,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:26:40,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:26:40,637 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-26 23:26:40,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:26:40,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617675963] [2023-08-26 23:26:40,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617675963] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 23:26:40,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [563477319] [2023-08-26 23:26:40,642 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-26 23:26:40,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 23:26:40,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 23:26:40,643 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 23:26:40,647 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-26 23:26:40,753 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-26 23:26:40,754 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 23:26:40,755 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 8 conjunts are in the unsatisfiable core [2023-08-26 23:26:40,756 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 23:26:40,813 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-26 23:26:40,814 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 23:26:40,843 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-26 23:26:40,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [563477319] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 23:26:40,844 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 23:26:40,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2023-08-26 23:26:40,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152597617] [2023-08-26 23:26:40,844 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 23:26:40,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-26 23:26:40,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:26:40,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-26 23:26:40,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=76, Unknown=0, NotChecked=0, Total=132 [2023-08-26 23:26:40,847 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 248 out of 667 [2023-08-26 23:26:40,850 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 40 transitions, 141 flow. Second operand has 12 states, 12 states have (on average 249.5) internal successors, (2994), 12 states have internal predecessors, (2994), 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) [2023-08-26 23:26:40,850 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:26:40,850 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 248 of 667 [2023-08-26 23:26:40,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:26:41,084 INFO L124 PetriNetUnfolderBase]: 477/832 cut-off events. [2023-08-26 23:26:41,084 INFO L125 PetriNetUnfolderBase]: For 56/56 co-relation queries the response was YES. [2023-08-26 23:26:41,085 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1803 conditions, 832 events. 477/832 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 3958 event pairs, 419 based on Foata normal form. 1/424 useless extension candidates. Maximal degree in co-relation 1793. Up to 823 conditions per place. [2023-08-26 23:26:41,089 INFO L140 encePairwiseOnDemand]: 662/667 looper letters, 30 selfloop transitions, 12 changer transitions 0/42 dead transitions. [2023-08-26 23:26:41,090 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 42 transitions, 233 flow [2023-08-26 23:26:41,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-26 23:26:41,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-26 23:26:41,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1779 transitions. [2023-08-26 23:26:41,095 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.381023773827372 [2023-08-26 23:26:41,096 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1779 transitions. [2023-08-26 23:26:41,096 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1779 transitions. [2023-08-26 23:26:41,097 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:26:41,097 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1779 transitions. [2023-08-26 23:26:41,100 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 254.14285714285714) internal successors, (1779), 7 states have internal predecessors, (1779), 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) [2023-08-26 23:26:41,106 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 667.0) internal successors, (5336), 8 states have internal predecessors, (5336), 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) [2023-08-26 23:26:41,107 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 667.0) internal successors, (5336), 8 states have internal predecessors, (5336), 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) [2023-08-26 23:26:41,107 INFO L175 Difference]: Start difference. First operand has 43 places, 40 transitions, 141 flow. Second operand 7 states and 1779 transitions. [2023-08-26 23:26:41,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 42 transitions, 233 flow [2023-08-26 23:26:41,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 42 transitions, 213 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-26 23:26:41,109 INFO L231 Difference]: Finished difference. Result has 45 places, 42 transitions, 163 flow [2023-08-26 23:26:41,109 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=667, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=163, PETRI_PLACES=45, PETRI_TRANSITIONS=42} [2023-08-26 23:26:41,110 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 2 predicate places. [2023-08-26 23:26:41,110 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 42 transitions, 163 flow [2023-08-26 23:26:41,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 249.5) internal successors, (2994), 12 states have internal predecessors, (2994), 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) [2023-08-26 23:26:41,111 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:26:41,111 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 23:26:41,124 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-08-26 23:26:41,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 23:26:41,321 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-08-26 23:26:41,321 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:26:41,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1914235210, now seen corresponding path program 3 times [2023-08-26 23:26:41,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:26:41,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506560212] [2023-08-26 23:26:41,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:26:41,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:26:41,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:26:42,180 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-08-26 23:26:42,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:26:42,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506560212] [2023-08-26 23:26:42,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506560212] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 23:26:42,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [434982830] [2023-08-26 23:26:42,181 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-26 23:26:42,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 23:26:42,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 23:26:42,182 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 23:26:42,200 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-08-26 23:26:42,318 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-08-26 23:26:42,318 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 23:26:42,320 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 40 conjunts are in the unsatisfiable core [2023-08-26 23:26:42,323 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 23:26:42,394 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-26 23:26:42,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 23:26:42,437 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-08-26 23:26:42,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 23:26:42,500 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-08-26 23:26:42,547 INFO L322 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2023-08-26 23:26:42,548 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 24 [2023-08-26 23:26:42,612 INFO L322 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2023-08-26 23:26:42,612 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 28 [2023-08-26 23:26:42,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 23:26:42,670 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-26 23:26:42,687 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 1 proven. 14 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-08-26 23:26:42,688 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 23:26:52,042 INFO L322 Elim1Store]: treesize reduction 212, result has 30.5 percent of original size [2023-08-26 23:26:52,042 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 50 treesize of output 103 [2023-08-26 23:26:52,124 INFO L322 Elim1Store]: treesize reduction 24, result has 70.4 percent of original size [2023-08-26 23:26:52,124 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 102 treesize of output 122 [2023-08-26 23:26:52,229 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-08-26 23:26:52,273 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-08-26 23:26:52,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [434982830] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 23:26:52,274 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 23:26:52,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2023-08-26 23:26:52,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427112425] [2023-08-26 23:26:52,274 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 23:26:52,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-08-26 23:26:52,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:26:52,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-08-26 23:26:52,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=498, Unknown=10, NotChecked=0, Total=650 [2023-08-26 23:26:52,279 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 667 [2023-08-26 23:26:52,295 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 42 transitions, 163 flow. Second operand has 26 states, 26 states have (on average 222.26923076923077) internal successors, (5779), 26 states have internal predecessors, (5779), 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) [2023-08-26 23:26:52,295 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:26:52,296 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 667 [2023-08-26 23:26:52,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:26:53,019 INFO L124 PetriNetUnfolderBase]: 540/1030 cut-off events. [2023-08-26 23:26:53,020 INFO L125 PetriNetUnfolderBase]: For 53/53 co-relation queries the response was YES. [2023-08-26 23:26:53,021 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2215 conditions, 1030 events. 540/1030 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 5816 event pairs, 259 based on Foata normal form. 0/526 useless extension candidates. Maximal degree in co-relation 2204. Up to 662 conditions per place. [2023-08-26 23:26:53,025 INFO L140 encePairwiseOnDemand]: 653/667 looper letters, 48 selfloop transitions, 22 changer transitions 0/70 dead transitions. [2023-08-26 23:26:53,026 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 70 transitions, 370 flow [2023-08-26 23:26:53,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-26 23:26:53,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-26 23:26:53,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2274 transitions. [2023-08-26 23:26:53,033 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3409295352323838 [2023-08-26 23:26:53,033 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2274 transitions. [2023-08-26 23:26:53,033 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2274 transitions. [2023-08-26 23:26:53,034 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:26:53,034 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2274 transitions. [2023-08-26 23:26:53,082 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 227.4) internal successors, (2274), 10 states have internal predecessors, (2274), 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) [2023-08-26 23:26:53,088 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 667.0) internal successors, (7337), 11 states have internal predecessors, (7337), 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) [2023-08-26 23:26:53,090 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 667.0) internal successors, (7337), 11 states have internal predecessors, (7337), 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) [2023-08-26 23:26:53,090 INFO L175 Difference]: Start difference. First operand has 45 places, 42 transitions, 163 flow. Second operand 10 states and 2274 transitions. [2023-08-26 23:26:53,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 70 transitions, 370 flow [2023-08-26 23:26:53,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 70 transitions, 350 flow, removed 2 selfloop flow, removed 4 redundant places. [2023-08-26 23:26:53,092 INFO L231 Difference]: Finished difference. Result has 52 places, 54 transitions, 243 flow [2023-08-26 23:26:53,092 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=667, PETRI_DIFFERENCE_MINUEND_FLOW=143, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=243, PETRI_PLACES=52, PETRI_TRANSITIONS=54} [2023-08-26 23:26:53,094 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 9 predicate places. [2023-08-26 23:26:53,094 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 54 transitions, 243 flow [2023-08-26 23:26:53,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 222.26923076923077) internal successors, (5779), 26 states have internal predecessors, (5779), 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) [2023-08-26 23:26:53,096 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:26:53,096 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 23:26:53,107 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-08-26 23:26:53,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 23:26:53,303 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-08-26 23:26:53,303 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:26:53,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1914235135, now seen corresponding path program 1 times [2023-08-26 23:26:53,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:26:53,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198684016] [2023-08-26 23:26:53,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:26:53,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:26:53,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:26:54,281 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 17 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-26 23:26:54,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:26:54,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198684016] [2023-08-26 23:26:54,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198684016] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 23:26:54,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [942755128] [2023-08-26 23:26:54,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:26:54,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 23:26:54,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 23:26:54,283 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 23:26:54,286 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-08-26 23:26:54,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:26:54,403 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 64 conjunts are in the unsatisfiable core [2023-08-26 23:26:54,408 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 23:26:54,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 23:26:54,433 INFO L322 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2023-08-26 23:26:54,433 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 24 [2023-08-26 23:26:54,468 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-26 23:26:54,505 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-08-26 23:26:54,543 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-08-26 23:26:54,584 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-08-26 23:26:54,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 23:26:54,629 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-08-26 23:26:54,678 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-08-26 23:26:54,679 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-08-26 23:26:54,720 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-26 23:26:54,767 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-26 23:26:54,837 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-26 23:26:54,889 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-26 23:26:54,908 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-26 23:26:54,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 23:26:54,958 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-26 23:26:55,050 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-26 23:26:55,050 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 23:26:55,352 WARN L839 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_366 (Array Int Int)) (~o_2~0.base Int)) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_366))) (let ((.cse1 (select (select .cse0 ~o_2~0.base) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|))) (or (< (select (select .cse0 c_~o_0~0.base) c_~o_0~0.offset) (+ .cse1 2147483648)) (< 9223372039002259455 .cse1) (<= .cse1 0))))) (forall ((v_ArrVal_366 (Array Int Int)) (~o_2~0.base Int)) (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_366))) (let ((.cse3 (select (select .cse2 ~o_2~0.base) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|))) (or (< (select (select .cse2 c_~o_0~0.base) c_~o_0~0.offset) (+ .cse3 2147483648)) (< .cse3 0) (< 0 .cse3)))))) is different from false [2023-08-26 23:27:30,982 INFO L322 Elim1Store]: treesize reduction 146, result has 55.1 percent of original size [2023-08-26 23:27:30,983 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 10 case distinctions, treesize of input 471 treesize of output 315 [2023-08-26 23:27:31,028 INFO L322 Elim1Store]: treesize reduction 12, result has 62.5 percent of original size [2023-08-26 23:27:31,028 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 1658 treesize of output 1588 [2023-08-26 23:27:31,091 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 23:27:31,092 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 467 treesize of output 456 [2023-08-26 23:27:31,130 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 23:27:31,131 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 447 treesize of output 416 [2023-08-26 23:27:31,187 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 23:27:31,188 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1176 treesize of output 1154 [2023-08-26 23:27:31,268 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 23:27:31,269 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 747 treesize of output 736 [2023-08-26 23:27:31,331 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 23:27:31,332 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 727 treesize of output 696 [2023-08-26 23:28:17,891 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 137 treesize of output 127 [2023-08-26 23:28:20,967 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1124 treesize of output 1080 [2023-08-26 23:28:33,406 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 454 treesize of output 428 [2023-08-26 23:28:38,774 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 23:28:38,777 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 7389 treesize of output 6869 [2023-08-26 23:29:13,931 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 23:29:13,932 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1961 treesize of output 1935 [2023-08-26 23:29:38,217 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 23:29:38,220 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 5392 treesize of output 5235 [2023-08-26 23:33:06,158 INFO L322 Elim1Store]: treesize reduction 10, result has 65.5 percent of original size [2023-08-26 23:33:06,159 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 247 treesize of output 225 [2023-08-26 23:33:07,119 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 23:33:07,128 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 18632 treesize of output 18327 [2023-08-26 23:33:07,819 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 23:33:07,825 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 18298 treesize of output 18229 Received shutdown request... [2023-08-26 23:39:40,751 WARN L266 SmtUtils]: Removed 2 from assertion stack [2023-08-26 23:39:40,753 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 39 remaining) [2023-08-26 23:39:40,765 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-08-26 23:39:40,783 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-26 23:39:40,783 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-26 23:39:40,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 23:39:40,959 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 6 for 2ms.. [2023-08-26 23:39:40,961 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 39 remaining) [2023-08-26 23:39:40,961 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 39 remaining) [2023-08-26 23:39:40,961 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 39 remaining) [2023-08-26 23:39:40,961 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 39 remaining) [2023-08-26 23:39:40,961 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 39 remaining) [2023-08-26 23:39:40,961 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 39 remaining) [2023-08-26 23:39:40,961 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 39 remaining) [2023-08-26 23:39:40,961 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 39 remaining) [2023-08-26 23:39:40,961 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 39 remaining) [2023-08-26 23:39:40,961 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 39 remaining) [2023-08-26 23:39:40,961 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 39 remaining) [2023-08-26 23:39:40,962 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 39 remaining) [2023-08-26 23:39:40,962 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 39 remaining) [2023-08-26 23:39:40,962 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 39 remaining) [2023-08-26 23:39:40,962 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 39 remaining) [2023-08-26 23:39:40,962 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 39 remaining) [2023-08-26 23:39:40,962 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 39 remaining) [2023-08-26 23:39:40,962 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 39 remaining) [2023-08-26 23:39:40,962 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 39 remaining) [2023-08-26 23:39:40,962 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 39 remaining) [2023-08-26 23:39:40,962 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4ASSERT_VIOLATIONASSERT (17 of 39 remaining) [2023-08-26 23:39:40,962 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 39 remaining) [2023-08-26 23:39:40,962 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 39 remaining) [2023-08-26 23:39:40,962 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 39 remaining) [2023-08-26 23:39:40,963 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 39 remaining) [2023-08-26 23:39:40,963 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 39 remaining) [2023-08-26 23:39:40,963 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 39 remaining) [2023-08-26 23:39:40,963 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 39 remaining) [2023-08-26 23:39:40,963 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 39 remaining) [2023-08-26 23:39:40,963 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 39 remaining) [2023-08-26 23:39:40,963 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 39 remaining) [2023-08-26 23:39:40,963 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 39 remaining) [2023-08-26 23:39:40,963 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 39 remaining) [2023-08-26 23:39:40,964 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 39 remaining) [2023-08-26 23:39:40,964 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 39 remaining) [2023-08-26 23:39:40,964 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 39 remaining) [2023-08-26 23:39:40,964 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 39 remaining) [2023-08-26 23:39:40,964 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 39 remaining) [2023-08-26 23:39:40,964 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1] [2023-08-26 23:39:40,970 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 23:39:40,970 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 23:39:40,973 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 11:39:40 BasicIcfg [2023-08-26 23:39:40,973 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 23:39:40,975 INFO L158 Benchmark]: Toolchain (without parser) took 799455.03ms. Allocated memory was 346.0MB in the beginning and 1.1GB in the end (delta: 752.9MB). Free memory was 322.0MB in the beginning and 976.7MB in the end (delta: -654.8MB). Peak memory consumption was 693.3MB. Max. memory is 16.0GB. [2023-08-26 23:39:40,975 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 346.0MB. Free memory was 322.6MB in the beginning and 322.5MB in the end (delta: 87.0kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 23:39:40,976 INFO L158 Benchmark]: CACSL2BoogieTranslator took 288.07ms. Allocated memory is still 346.0MB. Free memory was 321.6MB in the beginning and 310.0MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-26 23:39:40,976 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.41ms. Allocated memory is still 346.0MB. Free memory was 310.0MB in the beginning and 307.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 23:39:40,976 INFO L158 Benchmark]: Boogie Preprocessor took 39.79ms. Allocated memory is still 346.0MB. Free memory was 307.7MB in the beginning and 305.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 23:39:40,976 INFO L158 Benchmark]: RCFGBuilder took 645.69ms. Allocated memory is still 346.0MB. Free memory was 305.6MB in the beginning and 282.2MB in the end (delta: 23.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. [2023-08-26 23:39:40,977 INFO L158 Benchmark]: TraceAbstraction took 798418.14ms. Allocated memory was 346.0MB in the beginning and 1.1GB in the end (delta: 752.9MB). Free memory was 281.5MB in the beginning and 976.7MB in the end (delta: -695.2MB). Peak memory consumption was 653.4MB. Max. memory is 16.0GB. [2023-08-26 23:39:40,979 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 346.0MB. Free memory was 322.6MB in the beginning and 322.5MB in the end (delta: 87.0kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 288.07ms. Allocated memory is still 346.0MB. Free memory was 321.6MB in the beginning and 310.0MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 58.41ms. Allocated memory is still 346.0MB. Free memory was 310.0MB in the beginning and 307.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 39.79ms. Allocated memory is still 346.0MB. Free memory was 307.7MB in the beginning and 305.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 645.69ms. Allocated memory is still 346.0MB. Free memory was 305.6MB in the beginning and 282.2MB in the end (delta: 23.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. * TraceAbstraction took 798418.14ms. Allocated memory was 346.0MB in the beginning and 1.1GB in the end (delta: 752.9MB). Free memory was 281.5MB in the beginning and 976.7MB in the end (delta: -695.2MB). Peak memory consumption was 653.4MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.4s, 265 PlacesBefore, 43 PlacesAfterwards, 283 TransitionsBefore, 40 TransitionsAfterwards, 12212 CoEnabledTransitionPairs, 8 FixpointIterations, 119 TrivialSequentialCompositions, 179 ConcurrentSequentialCompositions, 31 TrivialYvCompositions, 23 ConcurrentYvCompositions, 21 ChoiceCompositions, 373 TotalNumberOfCompositions, 13295 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 12388, independent: 12311, independent conditional: 0, independent unconditional: 12311, dependent: 77, dependent conditional: 0, dependent unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 6805, independent: 6787, independent conditional: 0, independent unconditional: 6787, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 12388, independent: 5524, independent conditional: 0, independent unconditional: 5524, dependent: 59, dependent conditional: 0, dependent unconditional: 59, unknown: 6805, unknown conditional: 0, unknown unconditional: 6805] , Statistics on independence cache: Total cache size (in pairs): 153, Positive cache size: 145, Positive conditional cache size: 0, Positive unconditional cache size: 145, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResultAtElement [Line: 112]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 6 for 2ms.. - TimeoutResultAtElement [Line: 110]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 6 for 2ms.. - TimeoutResultAtElement [Line: 110]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 6 for 2ms.. - TimeoutResultAtElement [Line: 111]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 6 for 2ms.. - TimeoutResultAtElement [Line: 111]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 6 for 2ms.. - TimeoutResultAtElement [Line: 112]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 6 for 2ms.. - TimeoutResultAtElement [Line: 56]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 6 for 2ms.. - TimeoutResultAtElement [Line: 56]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 6 for 2ms.. - TimeoutResultAtElement [Line: 110]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 6 for 2ms.. - TimeoutResultAtElement [Line: 110]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 6 for 2ms.. - TimeoutResultAtElement [Line: 111]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 6 for 2ms.. - TimeoutResultAtElement [Line: 111]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 6 for 2ms.. - TimeoutResultAtElement [Line: 112]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 6 for 2ms.. - TimeoutResultAtElement [Line: 112]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 6 for 2ms.. - TimeoutResultAtElement [Line: 70]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 6 for 2ms.. - TimeoutResultAtElement [Line: 70]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 6 for 2ms.. - TimeoutResultAtElement [Line: 103]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 6 for 2ms.. - TimeoutResultAtElement [Line: 103]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 6 for 2ms.. - TimeoutResultAtElement [Line: 103]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 6 for 2ms.. - TimeoutResultAtElement [Line: 103]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 6 for 2ms.. - TimeoutResultAtElement [Line: 21]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 6 for 2ms.. - TimeoutResultAtElement [Line: 86]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 6 for 2ms.. - TimeoutResultAtElement [Line: 85]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 18 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 6 for 2ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 402 locations, 39 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: 798.3s, OverallIterations: 10, TraceHistogramMax: 5, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 14.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 138 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 138 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 77 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1172 IncrementalHoareTripleChecker+Invalid, 1249 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 77 mSolverCounterUnsat, 0 mSDtfsCounter, 1172 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 123 GetRequests, 56 SyntacticMatches, 6 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 376 ImplicationChecksByTransitivity, 9.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=243occurred in iteration=9, InterpolantAutomatonStates: 44, 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 11.6s InterpolantComputationTime, 118 NumberOfCodeBlocks, 114 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 144 ConstructedInterpolants, 5 QuantifiedInterpolants, 911 SizeOfPredicates, 13 NumberOfNonLiveVariables, 894 ConjunctsInSsa, 62 ConjunctsInUnsatCore, 18 InterpolantComputations, 5 PerfectInterpolantSequences, 89/179 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown