/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-trans.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 23:26:24,717 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 23:26:24,777 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 23:26:24,780 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 23:26:24,781 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 23:26:24,810 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 23:26:24,810 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 23:26:24,814 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 23:26:24,814 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 23:26:24,815 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 23:26:24,815 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 23:26:24,816 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 23:26:24,816 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 23:26:24,816 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 23:26:24,816 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 23:26:24,816 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 23:26:24,817 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 23:26:24,817 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 23:26:24,817 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 23:26:24,817 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 23:26:24,817 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 23:26:24,820 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 23:26:24,820 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 23:26:24,820 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 23:26:24,821 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 23:26:24,821 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 23:26:24,821 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 23:26:24,821 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 23:26:24,821 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 23:26:24,821 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 23:26:24,821 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 23:26:24,822 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 23:26:24,822 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 23:26:24,822 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 23:26:24,822 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 23:26:24,822 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-26 23:26:25,050 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 23:26:25,065 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 23:26:25,067 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 23:26:25,067 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 23:26:25,068 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 23:26:25,069 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-chromosome-trans.wvr.c [2023-08-26 23:26:26,061 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 23:26:26,204 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 23:26:26,204 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-trans.wvr.c [2023-08-26 23:26:26,209 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b22644b28/de61b7796e964dad99b10cbdcb8b2836/FLAG213985765 [2023-08-26 23:26:26,217 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b22644b28/de61b7796e964dad99b10cbdcb8b2836 [2023-08-26 23:26:26,219 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 23:26:26,219 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 23:26:26,220 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 23:26:26,220 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 23:26:26,222 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 23:26:26,222 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 11:26:26" (1/1) ... [2023-08-26 23:26:26,223 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a06b065 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:26:26, skipping insertion in model container [2023-08-26 23:26:26,223 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 11:26:26" (1/1) ... [2023-08-26 23:26:26,236 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 23:26:26,378 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 23:26:26,387 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 23:26:26,421 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 23:26:26,434 INFO L206 MainTranslator]: Completed translation [2023-08-26 23:26:26,435 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:26:26 WrapperNode [2023-08-26 23:26:26,435 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 23:26:26,436 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 23:26:26,436 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 23:26:26,436 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 23:26:26,440 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:26:26" (1/1) ... [2023-08-26 23:26:26,454 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:26:26" (1/1) ... [2023-08-26 23:26:26,487 INFO L138 Inliner]: procedures = 26, calls = 47, calls flagged for inlining = 17, calls inlined = 25, statements flattened = 336 [2023-08-26 23:26:26,488 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 23:26:26,488 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 23:26:26,488 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 23:26:26,488 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 23:26:26,497 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:26:26" (1/1) ... [2023-08-26 23:26:26,497 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:26:26" (1/1) ... [2023-08-26 23:26:26,506 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:26:26" (1/1) ... [2023-08-26 23:26:26,506 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:26:26" (1/1) ... [2023-08-26 23:26:26,512 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:26:26" (1/1) ... [2023-08-26 23:26:26,515 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:26:26" (1/1) ... [2023-08-26 23:26:26,516 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:26:26" (1/1) ... [2023-08-26 23:26:26,528 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:26:26" (1/1) ... [2023-08-26 23:26:26,530 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 23:26:26,531 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 23:26:26,531 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 23:26:26,531 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 23:26:26,531 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:26:26" (1/1) ... [2023-08-26 23:26:26,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 23:26:26,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 23:26:26,553 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 23:26:26,559 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 23:26:26,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 23:26:26,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 23:26:26,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 23:26:26,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 23:26:26,576 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-26 23:26:26,576 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-26 23:26:26,577 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-26 23:26:26,577 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-26 23:26:26,577 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-26 23:26:26,577 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-26 23:26:26,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 23:26:26,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-26 23:26:26,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 23:26:26,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 23:26:26,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 23:26:26,579 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 23:26:26,684 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 23:26:26,685 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 23:26:27,100 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 23:26:27,107 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 23:26:27,107 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-08-26 23:26:27,108 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 11:26:27 BoogieIcfgContainer [2023-08-26 23:26:27,108 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 23:26:27,110 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 23:26:27,110 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 23:26:27,112 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 23:26:27,112 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 11:26:26" (1/3) ... [2023-08-26 23:26:27,112 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60303739 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 11:26:27, skipping insertion in model container [2023-08-26 23:26:27,112 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:26:26" (2/3) ... [2023-08-26 23:26:27,113 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60303739 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 11:26:27, skipping insertion in model container [2023-08-26 23:26:27,113 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 11:26:27" (3/3) ... [2023-08-26 23:26:27,113 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-chromosome-trans.wvr.c [2023-08-26 23:26:27,166 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 23:26:27,167 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 31 error locations. [2023-08-26 23:26:27,167 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 23:26:27,282 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-26 23:26:27,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 388 places, 412 transitions, 848 flow [2023-08-26 23:26:27,420 INFO L124 PetriNetUnfolderBase]: 34/409 cut-off events. [2023-08-26 23:26:27,421 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-26 23:26:27,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 422 conditions, 409 events. 34/409 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 881 event pairs, 0 based on Foata normal form. 0/344 useless extension candidates. Maximal degree in co-relation 311. Up to 2 conditions per place. [2023-08-26 23:26:27,430 INFO L82 GeneralOperation]: Start removeDead. Operand has 388 places, 412 transitions, 848 flow [2023-08-26 23:26:27,438 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 374 places, 398 transitions, 814 flow [2023-08-26 23:26:27,440 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 23:26:27,446 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 374 places, 398 transitions, 814 flow [2023-08-26 23:26:27,448 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 374 places, 398 transitions, 814 flow [2023-08-26 23:26:27,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 374 places, 398 transitions, 814 flow [2023-08-26 23:26:27,526 INFO L124 PetriNetUnfolderBase]: 34/398 cut-off events. [2023-08-26 23:26:27,527 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-26 23:26:27,529 INFO L83 FinitePrefix]: Finished finitePrefix Result has 411 conditions, 398 events. 34/398 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 878 event pairs, 0 based on Foata normal form. 0/334 useless extension candidates. Maximal degree in co-relation 311. Up to 2 conditions per place. [2023-08-26 23:26:27,541 INFO L119 LiptonReduction]: Number of co-enabled transitions 35358 [2023-08-26 23:26:44,281 INFO L134 LiptonReduction]: Checked pairs total: 39502 [2023-08-26 23:26:44,282 INFO L136 LiptonReduction]: Total number of compositions: 514 [2023-08-26 23:26:44,302 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 23:26:44,307 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;@4b10e9b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 23:26:44,307 INFO L358 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2023-08-26 23:26:44,309 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 23:26:44,309 INFO L124 PetriNetUnfolderBase]: 1/2 cut-off events. [2023-08-26 23:26:44,309 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 23:26:44,309 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:26:44,309 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-26 23:26:44,310 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-08-26 23:26:44,313 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:26:44,313 INFO L85 PathProgramCache]: Analyzing trace with hash 55083, now seen corresponding path program 1 times [2023-08-26 23:26:44,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:26:44,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314149889] [2023-08-26 23:26:44,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:26:44,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:26:44,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:26:44,503 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 23:26:44,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:26:44,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314149889] [2023-08-26 23:26:44,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314149889] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:26:44,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 23:26:44,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 23:26:44,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678739762] [2023-08-26 23:26:44,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:26:44,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 23:26:44,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:26:44,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 23:26:44,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 23:26:44,528 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 359 out of 926 [2023-08-26 23:26:44,531 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 60 transitions, 138 flow. Second operand has 3 states, 3 states have (on average 359.6666666666667) internal successors, (1079), 3 states have internal predecessors, (1079), 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 23:26:44,531 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:26:44,531 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 359 of 926 [2023-08-26 23:26:44,531 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:26:45,233 INFO L124 PetriNetUnfolderBase]: 4763/6774 cut-off events. [2023-08-26 23:26:45,233 INFO L125 PetriNetUnfolderBase]: For 310/310 co-relation queries the response was YES. [2023-08-26 23:26:45,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13864 conditions, 6774 events. 4763/6774 cut-off events. For 310/310 co-relation queries the response was YES. Maximal size of possible extension queue 504. Compared 34273 event pairs, 4157 based on Foata normal form. 0/2784 useless extension candidates. Maximal degree in co-relation 12700. Up to 6770 conditions per place. [2023-08-26 23:26:45,258 INFO L140 encePairwiseOnDemand]: 906/926 looper letters, 52 selfloop transitions, 7 changer transitions 0/59 dead transitions. [2023-08-26 23:26:45,259 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 59 transitions, 254 flow [2023-08-26 23:26:45,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 23:26:45,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 23:26:45,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1149 transitions. [2023-08-26 23:26:45,273 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4136069114470842 [2023-08-26 23:26:45,273 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1149 transitions. [2023-08-26 23:26:45,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1149 transitions. [2023-08-26 23:26:45,276 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:26:45,277 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1149 transitions. [2023-08-26 23:26:45,282 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 383.0) internal successors, (1149), 3 states have internal predecessors, (1149), 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 23:26:45,288 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 926.0) internal successors, (3704), 4 states have internal predecessors, (3704), 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 23:26:45,289 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 926.0) internal successors, (3704), 4 states have internal predecessors, (3704), 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 23:26:45,290 INFO L175 Difference]: Start difference. First operand has 64 places, 60 transitions, 138 flow. Second operand 3 states and 1149 transitions. [2023-08-26 23:26:45,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 59 transitions, 254 flow [2023-08-26 23:26:45,297 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 59 transitions, 242 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-26 23:26:45,298 INFO L231 Difference]: Finished difference. Result has 55 places, 59 transitions, 176 flow [2023-08-26 23:26:45,299 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=926, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=176, PETRI_PLACES=55, PETRI_TRANSITIONS=59} [2023-08-26 23:26:45,304 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, -9 predicate places. [2023-08-26 23:26:45,304 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 59 transitions, 176 flow [2023-08-26 23:26:45,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 359.6666666666667) internal successors, (1079), 3 states have internal predecessors, (1079), 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 23:26:45,305 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:26:45,305 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-26 23:26:45,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 23:26:45,305 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-08-26 23:26:45,306 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:26:45,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1712414, now seen corresponding path program 1 times [2023-08-26 23:26:45,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:26:45,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936774924] [2023-08-26 23:26:45,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:26:45,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:26:45,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:26:45,419 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 23:26:45,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:26:45,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936774924] [2023-08-26 23:26:45,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936774924] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 23:26:45,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1868153897] [2023-08-26 23:26:45,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:26:45,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 23:26:45,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 23:26:45,422 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 23:26:45,425 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 23:26:45,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:26:45,515 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-26 23:26:45,517 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 23:26:45,549 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 23:26:45,549 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 23:26:45,561 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 23:26:45,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1868153897] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 23:26:45,562 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 23:26:45,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2023-08-26 23:26:45,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486122572] [2023-08-26 23:26:45,563 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 23:26:45,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-26 23:26:45,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:26:45,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-26 23:26:45,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-26 23:26:45,565 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 359 out of 926 [2023-08-26 23:26:45,568 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 59 transitions, 176 flow. Second operand has 7 states, 7 states have (on average 360.14285714285717) internal successors, (2521), 7 states have internal predecessors, (2521), 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 23:26:45,568 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:26:45,568 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 359 of 926 [2023-08-26 23:26:45,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:26:46,233 INFO L124 PetriNetUnfolderBase]: 4781/6801 cut-off events. [2023-08-26 23:26:46,233 INFO L125 PetriNetUnfolderBase]: For 60/60 co-relation queries the response was YES. [2023-08-26 23:26:46,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13776 conditions, 6801 events. 4781/6801 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 504. Compared 34339 event pairs, 4157 based on Foata normal form. 0/2803 useless extension candidates. Maximal degree in co-relation 13621. Up to 6770 conditions per place. [2023-08-26 23:26:46,288 INFO L140 encePairwiseOnDemand]: 913/926 looper letters, 49 selfloop transitions, 37 changer transitions 0/86 dead transitions. [2023-08-26 23:26:46,289 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 86 transitions, 468 flow [2023-08-26 23:26:46,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-26 23:26:46,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-26 23:26:46,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2608 transitions. [2023-08-26 23:26:46,293 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.402344955260722 [2023-08-26 23:26:46,293 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2608 transitions. [2023-08-26 23:26:46,294 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2608 transitions. [2023-08-26 23:26:46,294 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:26:46,295 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2608 transitions. [2023-08-26 23:26:46,298 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 372.57142857142856) internal successors, (2608), 7 states have internal predecessors, (2608), 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 23:26:46,305 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 926.0) internal successors, (7408), 8 states have internal predecessors, (7408), 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 23:26:46,307 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 926.0) internal successors, (7408), 8 states have internal predecessors, (7408), 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 23:26:46,307 INFO L175 Difference]: Start difference. First operand has 55 places, 59 transitions, 176 flow. Second operand 7 states and 2608 transitions. [2023-08-26 23:26:46,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 86 transitions, 468 flow [2023-08-26 23:26:46,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 86 transitions, 442 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 23:26:46,316 INFO L231 Difference]: Finished difference. Result has 62 places, 86 transitions, 406 flow [2023-08-26 23:26:46,316 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=926, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=406, PETRI_PLACES=62, PETRI_TRANSITIONS=86} [2023-08-26 23:26:46,316 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, -2 predicate places. [2023-08-26 23:26:46,317 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 86 transitions, 406 flow [2023-08-26 23:26:46,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 360.14285714285717) internal successors, (2521), 7 states have internal predecessors, (2521), 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 23:26:46,318 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:26:46,318 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1] [2023-08-26 23:26:46,325 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 23:26:46,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 23:26:46,525 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-08-26 23:26:46,526 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:26:46,526 INFO L85 PathProgramCache]: Analyzing trace with hash 53088395, now seen corresponding path program 1 times [2023-08-26 23:26:46,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:26:46,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066061645] [2023-08-26 23:26:46,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:26:46,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:26:46,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:26:46,570 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-26 23:26:46,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:26:46,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066061645] [2023-08-26 23:26:46,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066061645] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:26:46,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 23:26:46,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 23:26:46,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675400614] [2023-08-26 23:26:46,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:26:46,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 23:26:46,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:26:46,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 23:26:46,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 23:26:46,575 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 359 out of 926 [2023-08-26 23:26:46,576 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 86 transitions, 406 flow. Second operand has 3 states, 3 states have (on average 360.3333333333333) internal successors, (1081), 3 states have internal predecessors, (1081), 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 23:26:46,576 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:26:46,576 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 359 of 926 [2023-08-26 23:26:46,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:26:47,168 INFO L124 PetriNetUnfolderBase]: 4772/6789 cut-off events. [2023-08-26 23:26:47,168 INFO L125 PetriNetUnfolderBase]: For 65/65 co-relation queries the response was YES. [2023-08-26 23:26:47,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13786 conditions, 6789 events. 4772/6789 cut-off events. For 65/65 co-relation queries the response was YES. Maximal size of possible extension queue 504. Compared 34310 event pairs, 4157 based on Foata normal form. 0/2805 useless extension candidates. Maximal degree in co-relation 13692. Up to 6761 conditions per place. [2023-08-26 23:26:47,190 INFO L140 encePairwiseOnDemand]: 921/926 looper letters, 68 selfloop transitions, 6 changer transitions 0/74 dead transitions. [2023-08-26 23:26:47,190 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 74 transitions, 473 flow [2023-08-26 23:26:47,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 23:26:47,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 23:26:47,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1130 transitions. [2023-08-26 23:26:47,192 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40676745860331176 [2023-08-26 23:26:47,192 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1130 transitions. [2023-08-26 23:26:47,193 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1130 transitions. [2023-08-26 23:26:47,193 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:26:47,193 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1130 transitions. [2023-08-26 23:26:47,195 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 376.6666666666667) internal successors, (1130), 3 states have internal predecessors, (1130), 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 23:26:47,198 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 926.0) internal successors, (3704), 4 states have internal predecessors, (3704), 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 23:26:47,199 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 926.0) internal successors, (3704), 4 states have internal predecessors, (3704), 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 23:26:47,199 INFO L175 Difference]: Start difference. First operand has 62 places, 86 transitions, 406 flow. Second operand 3 states and 1130 transitions. [2023-08-26 23:26:47,199 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 74 transitions, 473 flow [2023-08-26 23:26:47,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 74 transitions, 436 flow, removed 12 selfloop flow, removed 1 redundant places. [2023-08-26 23:26:47,203 INFO L231 Difference]: Finished difference. Result has 59 places, 74 transitions, 300 flow [2023-08-26 23:26:47,203 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=926, PETRI_DIFFERENCE_MINUEND_FLOW=288, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=300, PETRI_PLACES=59, PETRI_TRANSITIONS=74} [2023-08-26 23:26:47,205 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, -5 predicate places. [2023-08-26 23:26:47,205 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 74 transitions, 300 flow [2023-08-26 23:26:47,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 360.3333333333333) internal successors, (1081), 3 states have internal predecessors, (1081), 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 23:26:47,205 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:26:47,206 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1] [2023-08-26 23:26:47,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 23:26:47,206 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-08-26 23:26:47,206 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:26:47,206 INFO L85 PathProgramCache]: Analyzing trace with hash -521506285, now seen corresponding path program 2 times [2023-08-26 23:26:47,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:26:47,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244149364] [2023-08-26 23:26:47,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:26:47,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:26:47,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:26:47,325 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 23:26:47,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:26:47,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244149364] [2023-08-26 23:26:47,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244149364] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 23:26:47,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2050039408] [2023-08-26 23:26:47,326 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-26 23:26:47,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 23:26:47,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 23:26:47,327 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 23:26:47,329 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 23:26:47,407 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-26 23:26:47,407 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 23:26:47,408 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-26 23:26:47,409 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 23:26:47,419 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 23:26:47,419 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-26 23:26:47,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2050039408] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:26:47,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-26 23:26:47,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [5] total 6 [2023-08-26 23:26:47,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741424507] [2023-08-26 23:26:47,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:26:47,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 23:26:47,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:26:47,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 23:26:47,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-08-26 23:26:47,422 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 362 out of 926 [2023-08-26 23:26:47,423 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 74 transitions, 300 flow. Second operand has 3 states, 3 states have (on average 363.0) internal successors, (1089), 3 states have internal predecessors, (1089), 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 23:26:47,423 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:26:47,423 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 362 of 926 [2023-08-26 23:26:47,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:26:48,013 INFO L124 PetriNetUnfolderBase]: 4772/6786 cut-off events. [2023-08-26 23:26:48,014 INFO L125 PetriNetUnfolderBase]: For 70/70 co-relation queries the response was YES. [2023-08-26 23:26:48,019 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13754 conditions, 6786 events. 4772/6786 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 504. Compared 34288 event pairs, 4157 based on Foata normal form. 3/2809 useless extension candidates. Maximal degree in co-relation 13686. Up to 6786 conditions per place. [2023-08-26 23:26:48,035 INFO L140 encePairwiseOnDemand]: 922/926 looper letters, 70 selfloop transitions, 1 changer transitions 0/71 dead transitions. [2023-08-26 23:26:48,035 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 71 transitions, 412 flow [2023-08-26 23:26:48,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 23:26:48,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 23:26:48,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1136 transitions. [2023-08-26 23:26:48,037 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4089272858171346 [2023-08-26 23:26:48,037 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1136 transitions. [2023-08-26 23:26:48,037 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1136 transitions. [2023-08-26 23:26:48,038 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:26:48,038 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1136 transitions. [2023-08-26 23:26:48,040 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 378.6666666666667) internal successors, (1136), 3 states have internal predecessors, (1136), 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 23:26:48,043 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 926.0) internal successors, (3704), 4 states have internal predecessors, (3704), 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 23:26:48,044 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 926.0) internal successors, (3704), 4 states have internal predecessors, (3704), 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 23:26:48,044 INFO L175 Difference]: Start difference. First operand has 59 places, 74 transitions, 300 flow. Second operand 3 states and 1136 transitions. [2023-08-26 23:26:48,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 71 transitions, 412 flow [2023-08-26 23:26:48,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 71 transitions, 352 flow, removed 4 selfloop flow, removed 6 redundant places. [2023-08-26 23:26:48,046 INFO L231 Difference]: Finished difference. Result has 52 places, 71 transitions, 212 flow [2023-08-26 23:26:48,046 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=926, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=212, PETRI_PLACES=52, PETRI_TRANSITIONS=71} [2023-08-26 23:26:48,046 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, -12 predicate places. [2023-08-26 23:26:48,046 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 71 transitions, 212 flow [2023-08-26 23:26:48,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 363.0) internal successors, (1089), 3 states have internal predecessors, (1089), 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 23:26:48,047 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:26:48,047 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 23:26:48,053 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-08-26 23:26:48,251 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 23:26:48,252 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-08-26 23:26:48,252 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:26:48,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1726473946, now seen corresponding path program 1 times [2023-08-26 23:26:48,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:26:48,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907918554] [2023-08-26 23:26:48,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:26:48,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:26:48,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:26:48,321 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 23:26:48,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:26:48,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907918554] [2023-08-26 23:26:48,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907918554] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:26:48,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 23:26:48,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 23:26:48,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393688625] [2023-08-26 23:26:48,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:26:48,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 23:26:48,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:26:48,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 23:26:48,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 23:26:48,323 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 347 out of 926 [2023-08-26 23:26:48,324 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 71 transitions, 212 flow. Second operand has 3 states, 3 states have (on average 349.6666666666667) internal successors, (1049), 3 states have internal predecessors, (1049), 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 23:26:48,325 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:26:48,325 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 347 of 926 [2023-08-26 23:26:48,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:26:48,889 INFO L124 PetriNetUnfolderBase]: 4769/6783 cut-off events. [2023-08-26 23:26:48,889 INFO L125 PetriNetUnfolderBase]: For 60/60 co-relation queries the response was YES. [2023-08-26 23:26:48,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13710 conditions, 6783 events. 4769/6783 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 496. Compared 34542 event pairs, 4157 based on Foata normal form. 0/2793 useless extension candidates. Maximal degree in co-relation 13702. Up to 6775 conditions per place. [2023-08-26 23:26:48,908 INFO L140 encePairwiseOnDemand]: 919/926 looper letters, 56 selfloop transitions, 12 changer transitions 0/68 dead transitions. [2023-08-26 23:26:48,908 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 68 transitions, 336 flow [2023-08-26 23:26:48,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 23:26:48,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 23:26:48,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1094 transitions. [2023-08-26 23:26:48,910 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3938084953203744 [2023-08-26 23:26:48,911 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1094 transitions. [2023-08-26 23:26:48,911 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1094 transitions. [2023-08-26 23:26:48,911 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:26:48,911 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1094 transitions. [2023-08-26 23:26:48,913 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 364.6666666666667) internal successors, (1094), 3 states have internal predecessors, (1094), 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 23:26:48,916 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 926.0) internal successors, (3704), 4 states have internal predecessors, (3704), 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 23:26:48,917 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 926.0) internal successors, (3704), 4 states have internal predecessors, (3704), 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 23:26:48,917 INFO L175 Difference]: Start difference. First operand has 52 places, 71 transitions, 212 flow. Second operand 3 states and 1094 transitions. [2023-08-26 23:26:48,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 68 transitions, 336 flow [2023-08-26 23:26:48,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 68 transitions, 335 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 23:26:48,918 INFO L231 Difference]: Finished difference. Result has 53 places, 68 transitions, 223 flow [2023-08-26 23:26:48,918 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=926, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=223, PETRI_PLACES=53, PETRI_TRANSITIONS=68} [2023-08-26 23:26:48,919 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, -11 predicate places. [2023-08-26 23:26:48,919 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 68 transitions, 223 flow [2023-08-26 23:26:48,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 349.6666666666667) internal successors, (1049), 3 states have internal predecessors, (1049), 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 23:26:48,919 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:26:48,919 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 23:26:48,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-26 23:26:48,919 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-08-26 23:26:48,920 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:26:48,920 INFO L85 PathProgramCache]: Analyzing trace with hash 233186823, now seen corresponding path program 1 times [2023-08-26 23:26:48,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:26:48,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045417486] [2023-08-26 23:26:48,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:26:48,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:26:48,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:26:48,995 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-26 23:26:48,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:26:48,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045417486] [2023-08-26 23:26:48,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045417486] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 23:26:48,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1760511916] [2023-08-26 23:26:48,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:26:48,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 23:26:48,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 23:26:48,997 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 23:26:49,023 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 23:26:49,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:26:49,099 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-26 23:26:49,100 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 23:26:49,120 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-26 23:26:49,120 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 23:26:49,134 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-26 23:26:49,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1760511916] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 23:26:49,137 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 23:26:49,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2023-08-26 23:26:49,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527244205] [2023-08-26 23:26:49,137 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 23:26:49,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-26 23:26:49,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:26:49,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-26 23:26:49,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2023-08-26 23:26:49,140 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 347 out of 926 [2023-08-26 23:26:49,142 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 68 transitions, 223 flow. Second operand has 8 states, 8 states have (on average 349.125) internal successors, (2793), 8 states have internal predecessors, (2793), 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 23:26:49,142 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:26:49,142 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 347 of 926 [2023-08-26 23:26:49,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:26:49,807 INFO L124 PetriNetUnfolderBase]: 4760/6774 cut-off events. [2023-08-26 23:26:49,807 INFO L125 PetriNetUnfolderBase]: For 60/60 co-relation queries the response was YES. [2023-08-26 23:26:49,812 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13689 conditions, 6774 events. 4760/6774 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 496. Compared 34512 event pairs, 4157 based on Foata normal form. 6/2801 useless extension candidates. Maximal degree in co-relation 13680. Up to 6763 conditions per place. [2023-08-26 23:26:49,827 INFO L140 encePairwiseOnDemand]: 919/926 looper letters, 44 selfloop transitions, 15 changer transitions 0/59 dead transitions. [2023-08-26 23:26:49,827 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 59 transitions, 293 flow [2023-08-26 23:26:49,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 23:26:49,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 23:26:49,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2150 transitions. [2023-08-26 23:26:49,831 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38696904247660185 [2023-08-26 23:26:49,831 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2150 transitions. [2023-08-26 23:26:49,831 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2150 transitions. [2023-08-26 23:26:49,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:26:49,832 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2150 transitions. [2023-08-26 23:26:49,834 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 358.3333333333333) internal successors, (2150), 6 states have internal predecessors, (2150), 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 23:26:49,839 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 926.0) internal successors, (6482), 7 states have internal predecessors, (6482), 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 23:26:49,840 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 926.0) internal successors, (6482), 7 states have internal predecessors, (6482), 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 23:26:49,840 INFO L175 Difference]: Start difference. First operand has 53 places, 68 transitions, 223 flow. Second operand 6 states and 2150 transitions. [2023-08-26 23:26:49,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 59 transitions, 293 flow [2023-08-26 23:26:49,840 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 59 transitions, 281 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 23:26:49,841 INFO L231 Difference]: Finished difference. Result has 56 places, 59 transitions, 193 flow [2023-08-26 23:26:49,841 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=926, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=193, PETRI_PLACES=56, PETRI_TRANSITIONS=59} [2023-08-26 23:26:49,842 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, -8 predicate places. [2023-08-26 23:26:49,842 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 59 transitions, 193 flow [2023-08-26 23:26:49,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 349.125) internal successors, (2793), 8 states have internal predecessors, (2793), 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 23:26:49,843 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:26:49,843 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 23:26:49,847 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-08-26 23:26:50,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 23:26:50,048 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-08-26 23:26:50,048 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:26:50,048 INFO L85 PathProgramCache]: Analyzing trace with hash 92429210, now seen corresponding path program 2 times [2023-08-26 23:26:50,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:26:50,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311241129] [2023-08-26 23:26:50,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:26:50,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:26:50,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:26:50,200 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-26 23:26:50,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:26:50,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311241129] [2023-08-26 23:26:50,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311241129] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 23:26:50,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [919303177] [2023-08-26 23:26:50,201 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-26 23:26:50,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 23:26:50,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 23:26:50,202 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 23:26:50,204 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 23:26:50,321 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-26 23:26:50,321 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 23:26:50,322 INFO L262 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 8 conjunts are in the unsatisfiable core [2023-08-26 23:26:50,323 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 23:26:50,387 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-26 23:26:50,387 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 23:26:50,450 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-26 23:26:50,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [919303177] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 23:26:50,451 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 23:26:50,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2023-08-26 23:26:50,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764804420] [2023-08-26 23:26:50,451 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 23:26:50,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-08-26 23:26:50,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:26:50,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-08-26 23:26:50,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=166, Unknown=0, NotChecked=0, Total=272 [2023-08-26 23:26:50,455 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 347 out of 926 [2023-08-26 23:26:50,467 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 59 transitions, 193 flow. Second operand has 17 states, 17 states have (on average 348.52941176470586) internal successors, (5925), 17 states have internal predecessors, (5925), 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 23:26:50,467 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:26:50,467 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 347 of 926 [2023-08-26 23:26:50,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:26:51,137 INFO L124 PetriNetUnfolderBase]: 4760/6777 cut-off events. [2023-08-26 23:26:51,137 INFO L125 PetriNetUnfolderBase]: For 60/60 co-relation queries the response was YES. [2023-08-26 23:26:51,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13707 conditions, 6777 events. 4760/6777 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 496. Compared 34508 event pairs, 4157 based on Foata normal form. 2/2800 useless extension candidates. Maximal degree in co-relation 13698. Up to 6763 conditions per place. [2023-08-26 23:26:51,152 INFO L140 encePairwiseOnDemand]: 919/926 looper letters, 44 selfloop transitions, 18 changer transitions 0/62 dead transitions. [2023-08-26 23:26:51,152 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 62 transitions, 329 flow [2023-08-26 23:26:51,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-26 23:26:51,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-26 23:26:51,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2494 transitions. [2023-08-26 23:26:51,163 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38475779080530703 [2023-08-26 23:26:51,163 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2494 transitions. [2023-08-26 23:26:51,163 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2494 transitions. [2023-08-26 23:26:51,165 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:26:51,165 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2494 transitions. [2023-08-26 23:26:51,171 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 356.2857142857143) internal successors, (2494), 7 states have internal predecessors, (2494), 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 23:26:51,179 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 926.0) internal successors, (7408), 8 states have internal predecessors, (7408), 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 23:26:51,180 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 926.0) internal successors, (7408), 8 states have internal predecessors, (7408), 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 23:26:51,180 INFO L175 Difference]: Start difference. First operand has 56 places, 59 transitions, 193 flow. Second operand 7 states and 2494 transitions. [2023-08-26 23:26:51,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 62 transitions, 329 flow [2023-08-26 23:26:51,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 62 transitions, 299 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-26 23:26:51,183 INFO L231 Difference]: Finished difference. Result has 58 places, 62 transitions, 225 flow [2023-08-26 23:26:51,183 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=926, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=225, PETRI_PLACES=58, PETRI_TRANSITIONS=62} [2023-08-26 23:26:51,183 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, -6 predicate places. [2023-08-26 23:26:51,184 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 62 transitions, 225 flow [2023-08-26 23:26:51,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 348.52941176470586) internal successors, (5925), 17 states have internal predecessors, (5925), 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 23:26:51,187 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:26:51,187 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 23:26:51,195 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 23:26:51,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 23:26:51,392 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-08-26 23:26:51,392 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:26:51,393 INFO L85 PathProgramCache]: Analyzing trace with hash -453058231, now seen corresponding path program 1 times [2023-08-26 23:26:51,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:26:51,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202662683] [2023-08-26 23:26:51,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:26:51,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:26:51,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:26:51,451 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-26 23:26:51,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:26:51,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202662683] [2023-08-26 23:26:51,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202662683] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:26:51,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 23:26:51,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 23:26:51,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397448374] [2023-08-26 23:26:51,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:26:51,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 23:26:51,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:26:51,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 23:26:51,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 23:26:51,453 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 926 [2023-08-26 23:26:51,454 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 62 transitions, 225 flow. Second operand has 3 states, 3 states have (on average 379.6666666666667) internal successors, (1139), 3 states have internal predecessors, (1139), 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 23:26:51,454 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:26:51,454 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 926 [2023-08-26 23:26:51,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:26:52,507 INFO L124 PetriNetUnfolderBase]: 8190/11659 cut-off events. [2023-08-26 23:26:52,508 INFO L125 PetriNetUnfolderBase]: For 60/60 co-relation queries the response was YES. [2023-08-26 23:26:52,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23559 conditions, 11659 events. 8190/11659 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 692. Compared 67552 event pairs, 4157 based on Foata normal form. 0/4804 useless extension candidates. Maximal degree in co-relation 23549. Up to 6778 conditions per place. [2023-08-26 23:26:52,543 INFO L140 encePairwiseOnDemand]: 922/926 looper letters, 96 selfloop transitions, 2 changer transitions 0/98 dead transitions. [2023-08-26 23:26:52,543 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 98 transitions, 498 flow [2023-08-26 23:26:52,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 23:26:52,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 23:26:52,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1213 transitions. [2023-08-26 23:26:52,546 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43664506839452844 [2023-08-26 23:26:52,546 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1213 transitions. [2023-08-26 23:26:52,546 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1213 transitions. [2023-08-26 23:26:52,547 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:26:52,547 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1213 transitions. [2023-08-26 23:26:52,548 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 404.3333333333333) internal successors, (1213), 3 states have internal predecessors, (1213), 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 23:26:52,551 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 926.0) internal successors, (3704), 4 states have internal predecessors, (3704), 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 23:26:52,552 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 926.0) internal successors, (3704), 4 states have internal predecessors, (3704), 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 23:26:52,552 INFO L175 Difference]: Start difference. First operand has 58 places, 62 transitions, 225 flow. Second operand 3 states and 1213 transitions. [2023-08-26 23:26:52,552 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 98 transitions, 498 flow [2023-08-26 23:26:52,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 98 transitions, 468 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-08-26 23:26:52,554 INFO L231 Difference]: Finished difference. Result has 57 places, 63 transitions, 209 flow [2023-08-26 23:26:52,554 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=926, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=209, PETRI_PLACES=57, PETRI_TRANSITIONS=63} [2023-08-26 23:26:52,556 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, -7 predicate places. [2023-08-26 23:26:52,556 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 63 transitions, 209 flow [2023-08-26 23:26:52,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 379.6666666666667) internal successors, (1139), 3 states have internal predecessors, (1139), 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 23:26:52,556 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:26:52,556 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 23:26:52,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-26 23:26:52,556 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-08-26 23:26:52,557 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:26:52,557 INFO L85 PathProgramCache]: Analyzing trace with hash -453058233, now seen corresponding path program 3 times [2023-08-26 23:26:52,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:26:52,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160169516] [2023-08-26 23:26:52,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:26:52,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:26:52,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:26:53,631 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 22 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-26 23:26:53,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:26:53,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160169516] [2023-08-26 23:26:53,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160169516] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 23:26:53,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1432392658] [2023-08-26 23:26:53,632 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-26 23:26:53,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 23:26:53,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 23:26:53,633 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 23:26:53,635 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 23:26:53,859 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-08-26 23:26:53,860 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 23:26:53,862 INFO L262 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 65 conjunts are in the unsatisfiable core [2023-08-26 23:26:53,869 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 23:26:53,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 23:26:53,921 INFO L322 Elim1Store]: treesize reduction 56, result has 37.8 percent of original size [2023-08-26 23:26:53,921 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 3 case distinctions, treesize of input 15 treesize of output 39 [2023-08-26 23:26:53,966 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 23:26:53,992 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 23:26:54,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 23:26:54,028 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 23:26:54,061 INFO L322 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2023-08-26 23:26:54,061 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 23:26:54,113 INFO L322 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2023-08-26 23:26:54,113 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 23:26:54,171 INFO L322 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-08-26 23:26:54,172 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 17 treesize of output 21 [2023-08-26 23:26:54,201 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 23:26:54,235 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 23:26:54,245 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 23:26:54,259 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 23:26:54,271 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 23:26:54,302 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-08-26 23:26:54,302 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 23:26:54,326 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 23:26:54,335 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 23:26:54,344 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 23:26:54,356 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 23:26:54,371 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 23:26:54,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 23:26:54,396 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 23:26:54,435 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-08-26 23:26:54,436 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 23:26:54,664 WARN L839 $PredicateComparison]: unable to prove that (and (forall ((~o_2~0.offset Int) (v_ArrVal_456 (Array Int Int)) (~o_2~0.base Int)) (let ((.cse1 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_456))) (let ((.cse0 (select (select .cse1 ~o_2~0.base) ~o_2~0.offset))) (or (<= .cse0 0) (< (select (select .cse1 c_~o_0~0.base) c_~o_0~0.offset) (+ .cse0 2147483648)) (< 9223372039002259455 .cse0))))) (forall ((~o_2~0.offset Int) (v_ArrVal_456 (Array Int Int)) (~o_2~0.base Int)) (let ((.cse3 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_456))) (let ((.cse2 (select (select .cse3 ~o_2~0.base) ~o_2~0.offset))) (or (< 0 .cse2) (< .cse2 0) (< (select (select .cse3 c_~o_0~0.base) c_~o_0~0.offset) (+ .cse2 2147483648))))))) is different from false [2023-08-26 23:26:54,689 WARN L839 $PredicateComparison]: unable to prove that (and (forall ((~o_2~0.offset Int) (v_ArrVal_456 (Array Int Int)) (v_ArrVal_455 (Array Int Int)) (~o_2~0.base Int)) (let ((.cse1 (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_455) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_456))) (let ((.cse0 (select (select .cse1 ~o_2~0.base) ~o_2~0.offset))) (or (<= .cse0 0) (< 9223372039002259455 .cse0) (< (select (select .cse1 c_~o_0~0.base) c_~o_0~0.offset) (+ .cse0 2147483648)))))) (forall ((~o_2~0.offset Int) (v_ArrVal_456 (Array Int Int)) (v_ArrVal_455 (Array Int Int)) (~o_2~0.base Int)) (let ((.cse3 (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_455) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_456))) (let ((.cse2 (select (select .cse3 ~o_2~0.base) ~o_2~0.offset))) (or (< .cse2 0) (< (select (select .cse3 c_~o_0~0.base) c_~o_0~0.offset) (+ .cse2 2147483648)) (< 0 .cse2)))))) is different from false [2023-08-26 23:27:38,769 INFO L322 Elim1Store]: treesize reduction 374, result has 36.5 percent of original size [2023-08-26 23:27:38,769 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 517 treesize of output 413 [2023-08-26 23:27:38,830 INFO L322 Elim1Store]: treesize reduction 12, result has 62.5 percent of original size [2023-08-26 23:27:38,831 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 5678 treesize of output 5544 [2023-08-26 23:27:38,973 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 23:27:38,973 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 1549 treesize of output 1414 [2023-08-26 23:27:39,031 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 23:27:39,032 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 1405 treesize of output 1378 [2023-08-26 23:27:39,091 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 23:27:39,092 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 1369 treesize of output 1306 [2023-08-26 23:27:39,177 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 23:27:39,178 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 11536 treesize of output 11290 [2023-08-26 23:27:39,355 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 23:27:39,356 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 2657 treesize of output 2630 [2023-08-26 23:27:39,458 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 23:27:39,459 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 2621 treesize of output 2558 [2023-08-26 23:27:39,564 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 23:27:39,564 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 2549 treesize of output 2414 [2023-08-26 23:27:39,637 INFO L209 tifierPushTermWalker]: Run 10 iterations without descend maybe there is a nontermination bug. Received shutdown request... [2023-08-26 23:40:00,144 WARN L266 SmtUtils]: Removed 2 from assertion stack [2023-08-26 23:40:00,146 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (57 of 58 remaining) [2023-08-26 23:40:00,152 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-08-26 23:40:00,158 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-26 23:40:00,158 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 23:40:00,351 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 23:40:00,352 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 12ms.. [2023-08-26 23:40:00,353 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (56 of 58 remaining) [2023-08-26 23:40:00,353 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (55 of 58 remaining) [2023-08-26 23:40:00,353 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (54 of 58 remaining) [2023-08-26 23:40:00,353 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (53 of 58 remaining) [2023-08-26 23:40:00,353 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (52 of 58 remaining) [2023-08-26 23:40:00,353 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 58 remaining) [2023-08-26 23:40:00,353 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 58 remaining) [2023-08-26 23:40:00,353 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 58 remaining) [2023-08-26 23:40:00,353 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 58 remaining) [2023-08-26 23:40:00,353 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 58 remaining) [2023-08-26 23:40:00,354 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 58 remaining) [2023-08-26 23:40:00,354 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 58 remaining) [2023-08-26 23:40:00,354 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 58 remaining) [2023-08-26 23:40:00,354 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 58 remaining) [2023-08-26 23:40:00,354 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 58 remaining) [2023-08-26 23:40:00,354 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 58 remaining) [2023-08-26 23:40:00,354 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 58 remaining) [2023-08-26 23:40:00,355 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 58 remaining) [2023-08-26 23:40:00,355 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 58 remaining) [2023-08-26 23:40:00,355 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 58 remaining) [2023-08-26 23:40:00,355 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 58 remaining) [2023-08-26 23:40:00,355 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 58 remaining) [2023-08-26 23:40:00,355 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 58 remaining) [2023-08-26 23:40:00,355 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 58 remaining) [2023-08-26 23:40:00,355 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 58 remaining) [2023-08-26 23:40:00,355 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 58 remaining) [2023-08-26 23:40:00,355 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 58 remaining) [2023-08-26 23:40:00,355 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 58 remaining) [2023-08-26 23:40:00,355 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 58 remaining) [2023-08-26 23:40:00,355 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 58 remaining) [2023-08-26 23:40:00,355 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr6ASSERT_VIOLATIONASSERT (26 of 58 remaining) [2023-08-26 23:40:00,356 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 58 remaining) [2023-08-26 23:40:00,356 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 58 remaining) [2023-08-26 23:40:00,356 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 58 remaining) [2023-08-26 23:40:00,356 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 58 remaining) [2023-08-26 23:40:00,356 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 58 remaining) [2023-08-26 23:40:00,356 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 58 remaining) [2023-08-26 23:40:00,356 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 58 remaining) [2023-08-26 23:40:00,356 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 58 remaining) [2023-08-26 23:40:00,356 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 58 remaining) [2023-08-26 23:40:00,356 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 58 remaining) [2023-08-26 23:40:00,356 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 58 remaining) [2023-08-26 23:40:00,357 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 58 remaining) [2023-08-26 23:40:00,357 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 58 remaining) [2023-08-26 23:40:00,357 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 58 remaining) [2023-08-26 23:40:00,357 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 58 remaining) [2023-08-26 23:40:00,357 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 58 remaining) [2023-08-26 23:40:00,357 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 58 remaining) [2023-08-26 23:40:00,357 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 58 remaining) [2023-08-26 23:40:00,357 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 58 remaining) [2023-08-26 23:40:00,357 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 58 remaining) [2023-08-26 23:40:00,357 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 58 remaining) [2023-08-26 23:40:00,357 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 58 remaining) [2023-08-26 23:40:00,357 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 58 remaining) [2023-08-26 23:40:00,357 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 58 remaining) [2023-08-26 23:40:00,357 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 58 remaining) [2023-08-26 23:40:00,357 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 58 remaining) [2023-08-26 23:40:00,358 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1] [2023-08-26 23:40:00,361 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 23:40:00,361 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 23:40:00,363 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 11:40:00 BasicIcfg [2023-08-26 23:40:00,363 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 23:40:00,363 INFO L158 Benchmark]: Toolchain (without parser) took 814143.66ms. Allocated memory was 392.2MB in the beginning and 1.3GB in the end (delta: 903.9MB). Free memory was 369.3MB in the beginning and 683.1MB in the end (delta: -313.8MB). Peak memory consumption was 799.1MB. Max. memory is 16.0GB. [2023-08-26 23:40:00,363 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 392.2MB. Free memory was 369.7MB in the beginning and 369.6MB in the end (delta: 80.5kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 23:40:00,363 INFO L158 Benchmark]: CACSL2BoogieTranslator took 214.84ms. Allocated memory is still 392.2MB. Free memory was 369.0MB in the beginning and 357.0MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-26 23:40:00,363 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.09ms. Allocated memory is still 392.2MB. Free memory was 357.0MB in the beginning and 354.1MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 23:40:00,364 INFO L158 Benchmark]: Boogie Preprocessor took 42.27ms. Allocated memory is still 392.2MB. Free memory was 354.1MB in the beginning and 352.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 23:40:00,367 INFO L158 Benchmark]: RCFGBuilder took 577.52ms. Allocated memory is still 392.2MB. Free memory was 352.0MB in the beginning and 322.3MB in the end (delta: 29.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.0GB. [2023-08-26 23:40:00,367 INFO L158 Benchmark]: TraceAbstraction took 813253.03ms. Allocated memory was 392.2MB in the beginning and 1.3GB in the end (delta: 903.9MB). Free memory was 321.5MB in the beginning and 683.1MB in the end (delta: -361.6MB). Peak memory consumption was 750.9MB. Max. memory is 16.0GB. [2023-08-26 23:40:00,369 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 392.2MB. Free memory was 369.7MB in the beginning and 369.6MB in the end (delta: 80.5kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 214.84ms. Allocated memory is still 392.2MB. Free memory was 369.0MB in the beginning and 357.0MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 52.09ms. Allocated memory is still 392.2MB. Free memory was 357.0MB in the beginning and 354.1MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 42.27ms. Allocated memory is still 392.2MB. Free memory was 354.1MB in the beginning and 352.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 577.52ms. Allocated memory is still 392.2MB. Free memory was 352.0MB in the beginning and 322.3MB in the end (delta: 29.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.0GB. * TraceAbstraction took 813253.03ms. Allocated memory was 392.2MB in the beginning and 1.3GB in the end (delta: 903.9MB). Free memory was 321.5MB in the beginning and 683.1MB in the end (delta: -361.6MB). Peak memory consumption was 750.9MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16.8s, 374 PlacesBefore, 64 PlacesAfterwards, 398 TransitionsBefore, 60 TransitionsAfterwards, 35358 CoEnabledTransitionPairs, 9 FixpointIterations, 154 TrivialSequentialCompositions, 257 ConcurrentSequentialCompositions, 32 TrivialYvCompositions, 43 ConcurrentYvCompositions, 28 ChoiceCompositions, 514 TotalNumberOfCompositions, 39502 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 38359, independent: 38179, independent conditional: 0, independent unconditional: 38179, dependent: 180, dependent conditional: 0, dependent unconditional: 180, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 20198, independent: 20164, independent conditional: 0, independent unconditional: 20164, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 38359, independent: 18015, independent conditional: 0, independent unconditional: 18015, dependent: 146, dependent conditional: 0, dependent unconditional: 146, unknown: 20198, unknown conditional: 0, unknown unconditional: 20198] , Statistics on independence cache: Total cache size (in pairs): 479, Positive cache size: 462, Positive conditional cache size: 0, Positive unconditional cache size: 462, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResultAtElement [Line: 128]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 12ms.. - TimeoutResultAtElement [Line: 126]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 12ms.. - TimeoutResultAtElement [Line: 126]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 12ms.. - TimeoutResultAtElement [Line: 127]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 12ms.. - TimeoutResultAtElement [Line: 127]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 12ms.. - TimeoutResultAtElement [Line: 128]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 12ms.. - TimeoutResultAtElement [Line: 56]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 12ms.. - TimeoutResultAtElement [Line: 56]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 12ms.. - TimeoutResultAtElement [Line: 126]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 12ms.. - TimeoutResultAtElement [Line: 126]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 12ms.. - TimeoutResultAtElement [Line: 127]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 12ms.. - TimeoutResultAtElement [Line: 127]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 12ms.. - TimeoutResultAtElement [Line: 128]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 12ms.. - TimeoutResultAtElement [Line: 128]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 12ms.. - TimeoutResultAtElement [Line: 70]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 12ms.. - TimeoutResultAtElement [Line: 70]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 12ms.. - TimeoutResultAtElement [Line: 126]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 12ms.. - TimeoutResultAtElement [Line: 126]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 12ms.. - TimeoutResultAtElement [Line: 127]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 12ms.. - TimeoutResultAtElement [Line: 127]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 12ms.. - TimeoutResultAtElement [Line: 128]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 12ms.. - TimeoutResultAtElement [Line: 128]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 12ms.. - TimeoutResultAtElement [Line: 84]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 12ms.. - TimeoutResultAtElement [Line: 84]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 12ms.. - TimeoutResultAtElement [Line: 119]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 12ms.. - TimeoutResultAtElement [Line: 119]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 12ms.. - TimeoutResultAtElement [Line: 119]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 12ms.. - TimeoutResultAtElement [Line: 119]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 12ms.. - TimeoutResultAtElement [Line: 119]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 12ms.. - TimeoutResultAtElement [Line: 119]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 12ms.. - TimeoutResultAtElement [Line: 21]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 12ms.. - TimeoutResultAtElement [Line: 101]: 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 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 12ms.. - TimeoutResultAtElement [Line: 102]: 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 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 12ms.. - TimeoutResultAtElement [Line: 103]: 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 24 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 12ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 577 locations, 58 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: 813.1s, OverallIterations: 9, TraceHistogramMax: 5, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 5.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 17.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 83 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 83 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 136 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1115 IncrementalHoareTripleChecker+Invalid, 1251 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 136 mSolverCounterUnsat, 0 mSDtfsCounter, 1115 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 90 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=406occurred in iteration=2, InterpolantAutomatonStates: 35, 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, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 117 NumberOfCodeBlocks, 113 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 136 ConstructedInterpolants, 0 QuantifiedInterpolants, 292 SizeOfPredicates, 3 NumberOfNonLiveVariables, 818 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 15 InterpolantComputations, 5 PerfectInterpolantSequences, 124/170 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