/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/pthread-wmm/safe029_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 10:19:37,964 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 10:19:38,027 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-27 10:19:38,032 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 10:19:38,032 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 10:19:38,056 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 10:19:38,056 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 10:19:38,056 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 10:19:38,057 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 10:19:38,059 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 10:19:38,060 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 10:19:38,060 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 10:19:38,060 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 10:19:38,061 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 10:19:38,061 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 10:19:38,061 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 10:19:38,061 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 10:19:38,062 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 10:19:38,062 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 10:19:38,062 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 10:19:38,062 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 10:19:38,062 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 10:19:38,062 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 10:19:38,063 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 10:19:38,063 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 10:19:38,063 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 10:19:38,063 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 10:19:38,064 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 10:19:38,064 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 10:19:38,064 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 10:19:38,065 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 10:19:38,065 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 10:19:38,065 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 10:19:38,065 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 10:19:38,065 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 10:19:38,066 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 10:19:38,319 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 10:19:38,334 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 10:19:38,336 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 10:19:38,337 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 10:19:38,337 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 10:19:38,338 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe029_tso.i [2023-08-27 10:19:39,355 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 10:19:39,554 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 10:19:39,555 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe029_tso.i [2023-08-27 10:19:39,568 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f8e97b23/dea355afc88e42b99deb3738478074db/FLAGe568c3c8e [2023-08-27 10:19:39,576 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f8e97b23/dea355afc88e42b99deb3738478074db [2023-08-27 10:19:39,578 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 10:19:39,578 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 10:19:39,579 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 10:19:39,579 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 10:19:39,581 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 10:19:39,581 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 10:19:39" (1/1) ... [2023-08-27 10:19:39,582 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bcc13ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:19:39, skipping insertion in model container [2023-08-27 10:19:39,582 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 10:19:39" (1/1) ... [2023-08-27 10:19:39,608 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 10:19:39,835 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 10:19:39,842 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 10:19:39,866 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-27 10:19:39,868 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-27 10:19:39,876 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 10:19:39,901 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-27 10:19:39,901 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-27 10:19:39,906 INFO L206 MainTranslator]: Completed translation [2023-08-27 10:19:39,906 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:19:39 WrapperNode [2023-08-27 10:19:39,906 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 10:19:39,907 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 10:19:39,907 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 10:19:39,907 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 10:19:39,911 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:19:39" (1/1) ... [2023-08-27 10:19:39,934 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:19:39" (1/1) ... [2023-08-27 10:19:39,950 INFO L138 Inliner]: procedures = 175, calls = 41, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2023-08-27 10:19:39,951 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 10:19:39,951 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 10:19:39,951 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 10:19:39,951 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 10:19:39,956 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:19:39" (1/1) ... [2023-08-27 10:19:39,957 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:19:39" (1/1) ... [2023-08-27 10:19:39,961 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:19:39" (1/1) ... [2023-08-27 10:19:39,961 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:19:39" (1/1) ... [2023-08-27 10:19:39,974 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:19:39" (1/1) ... [2023-08-27 10:19:39,975 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:19:39" (1/1) ... [2023-08-27 10:19:39,976 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:19:39" (1/1) ... [2023-08-27 10:19:39,976 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:19:39" (1/1) ... [2023-08-27 10:19:39,978 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 10:19:39,978 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 10:19:39,979 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 10:19:39,979 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 10:19:39,979 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:19:39" (1/1) ... [2023-08-27 10:19:39,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 10:19:39,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 10:19:40,008 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-27 10:19:40,036 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-27 10:19:40,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 10:19:40,040 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-27 10:19:40,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 10:19:40,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 10:19:40,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 10:19:40,041 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-27 10:19:40,041 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-27 10:19:40,041 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-27 10:19:40,041 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-27 10:19:40,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 10:19:40,041 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-27 10:19:40,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 10:19:40,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 10:19:40,042 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-27 10:19:40,144 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 10:19:40,146 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 10:19:40,286 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 10:19:40,299 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 10:19:40,299 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-27 10:19:40,301 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 10:19:40 BoogieIcfgContainer [2023-08-27 10:19:40,301 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 10:19:40,302 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 10:19:40,302 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 10:19:40,304 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 10:19:40,304 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 10:19:39" (1/3) ... [2023-08-27 10:19:40,305 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e463330 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 10:19:40, skipping insertion in model container [2023-08-27 10:19:40,305 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:19:39" (2/3) ... [2023-08-27 10:19:40,305 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e463330 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 10:19:40, skipping insertion in model container [2023-08-27 10:19:40,305 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 10:19:40" (3/3) ... [2023-08-27 10:19:40,306 INFO L112 eAbstractionObserver]: Analyzing ICFG safe029_tso.i [2023-08-27 10:19:40,317 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 10:19:40,318 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2023-08-27 10:19:40,318 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 10:19:40,351 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 10:19:40,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 78 places, 74 transitions, 158 flow [2023-08-27 10:19:40,429 INFO L124 PetriNetUnfolderBase]: 3/72 cut-off events. [2023-08-27 10:19:40,430 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 10:19:40,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 72 events. 3/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 59 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2023-08-27 10:19:40,434 INFO L82 GeneralOperation]: Start removeDead. Operand has 78 places, 74 transitions, 158 flow [2023-08-27 10:19:40,438 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 76 places, 72 transitions, 150 flow [2023-08-27 10:19:40,440 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 10:19:40,448 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 72 transitions, 150 flow [2023-08-27 10:19:40,450 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 72 transitions, 150 flow [2023-08-27 10:19:40,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 76 places, 72 transitions, 150 flow [2023-08-27 10:19:40,468 INFO L124 PetriNetUnfolderBase]: 3/72 cut-off events. [2023-08-27 10:19:40,469 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 10:19:40,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 72 events. 3/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 59 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2023-08-27 10:19:40,470 INFO L119 LiptonReduction]: Number of co-enabled transitions 1200 [2023-08-27 10:19:41,913 INFO L134 LiptonReduction]: Checked pairs total: 3327 [2023-08-27 10:19:41,914 INFO L136 LiptonReduction]: Total number of compositions: 72 [2023-08-27 10:19:41,922 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 10:19:41,926 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;@2965b135, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 10:19:41,926 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-08-27 10:19:41,928 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 10:19:41,928 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-08-27 10:19:41,928 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 10:19:41,928 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:19:41,929 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-27 10:19:41,929 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-08-27 10:19:41,932 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:19:41,932 INFO L85 PathProgramCache]: Analyzing trace with hash 272679645, now seen corresponding path program 1 times [2023-08-27 10:19:41,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:19:41,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145006665] [2023-08-27 10:19:41,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:19:41,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:19:42,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:19:42,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 10:19:42,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:19:42,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145006665] [2023-08-27 10:19:42,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145006665] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:19:42,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:19:42,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 10:19:42,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828558102] [2023-08-27 10:19:42,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:19:42,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 10:19:42,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:19:42,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 10:19:42,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 10:19:42,088 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 146 [2023-08-27 10:19:42,090 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 19 transitions, 44 flow. Second operand has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:19:42,090 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:19:42,090 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 146 [2023-08-27 10:19:42,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:19:42,131 INFO L124 PetriNetUnfolderBase]: 40/99 cut-off events. [2023-08-27 10:19:42,132 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-27 10:19:42,132 INFO L83 FinitePrefix]: Finished finitePrefix Result has 207 conditions, 99 events. 40/99 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 355 event pairs, 23 based on Foata normal form. 4/73 useless extension candidates. Maximal degree in co-relation 197. Up to 85 conditions per place. [2023-08-27 10:19:42,133 INFO L140 encePairwiseOnDemand]: 137/146 looper letters, 19 selfloop transitions, 3 changer transitions 0/24 dead transitions. [2023-08-27 10:19:42,133 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 24 transitions, 101 flow [2023-08-27 10:19:42,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 10:19:42,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 10:19:42,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 209 transitions. [2023-08-27 10:19:42,148 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4771689497716895 [2023-08-27 10:19:42,148 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 209 transitions. [2023-08-27 10:19:42,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 209 transitions. [2023-08-27 10:19:42,150 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:19:42,151 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 209 transitions. [2023-08-27 10:19:42,156 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:19:42,159 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:19:42,160 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:19:42,161 INFO L175 Difference]: Start difference. First operand has 25 places, 19 transitions, 44 flow. Second operand 3 states and 209 transitions. [2023-08-27 10:19:42,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 24 transitions, 101 flow [2023-08-27 10:19:42,163 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 24 transitions, 98 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 10:19:42,164 INFO L231 Difference]: Finished difference. Result has 26 places, 20 transitions, 67 flow [2023-08-27 10:19:42,165 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=67, PETRI_PLACES=26, PETRI_TRANSITIONS=20} [2023-08-27 10:19:42,168 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 1 predicate places. [2023-08-27 10:19:42,168 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 20 transitions, 67 flow [2023-08-27 10:19:42,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:19:42,169 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:19:42,169 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 10:19:42,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 10:19:42,169 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-08-27 10:19:42,175 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:19:42,176 INFO L85 PathProgramCache]: Analyzing trace with hash 2014546631, now seen corresponding path program 1 times [2023-08-27 10:19:42,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:19:42,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700564998] [2023-08-27 10:19:42,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:19:42,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:19:42,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:19:42,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 10:19:42,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:19:42,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700564998] [2023-08-27 10:19:42,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700564998] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:19:42,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:19:42,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 10:19:42,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044348743] [2023-08-27 10:19:42,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:19:42,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 10:19:42,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:19:42,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 10:19:42,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-27 10:19:42,259 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 146 [2023-08-27 10:19:42,260 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 20 transitions, 67 flow. Second operand has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:19:42,260 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:19:42,260 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 146 [2023-08-27 10:19:42,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:19:42,302 INFO L124 PetriNetUnfolderBase]: 32/81 cut-off events. [2023-08-27 10:19:42,302 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2023-08-27 10:19:42,303 INFO L83 FinitePrefix]: Finished finitePrefix Result has 211 conditions, 81 events. 32/81 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 253 event pairs, 15 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 200. Up to 66 conditions per place. [2023-08-27 10:19:42,303 INFO L140 encePairwiseOnDemand]: 141/146 looper letters, 17 selfloop transitions, 3 changer transitions 0/22 dead transitions. [2023-08-27 10:19:42,303 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 22 transitions, 109 flow [2023-08-27 10:19:42,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 10:19:42,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 10:19:42,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 262 transitions. [2023-08-27 10:19:42,305 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4486301369863014 [2023-08-27 10:19:42,305 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 262 transitions. [2023-08-27 10:19:42,305 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 262 transitions. [2023-08-27 10:19:42,305 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:19:42,305 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 262 transitions. [2023-08-27 10:19:42,306 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 65.5) internal successors, (262), 4 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:19:42,307 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 146.0) internal successors, (730), 5 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:19:42,307 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 146.0) internal successors, (730), 5 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:19:42,308 INFO L175 Difference]: Start difference. First operand has 26 places, 20 transitions, 67 flow. Second operand 4 states and 262 transitions. [2023-08-27 10:19:42,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 22 transitions, 109 flow [2023-08-27 10:19:42,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 22 transitions, 106 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 10:19:42,308 INFO L231 Difference]: Finished difference. Result has 26 places, 18 transitions, 62 flow [2023-08-27 10:19:42,309 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=62, PETRI_PLACES=26, PETRI_TRANSITIONS=18} [2023-08-27 10:19:42,309 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 1 predicate places. [2023-08-27 10:19:42,309 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 18 transitions, 62 flow [2023-08-27 10:19:42,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:19:42,310 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:19:42,310 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 10:19:42,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-27 10:19:42,310 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-08-27 10:19:42,310 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:19:42,310 INFO L85 PathProgramCache]: Analyzing trace with hash 2014546632, now seen corresponding path program 1 times [2023-08-27 10:19:42,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:19:42,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936258310] [2023-08-27 10:19:42,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:19:42,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:19:42,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:19:42,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 10:19:42,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:19:42,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936258310] [2023-08-27 10:19:42,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936258310] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:19:42,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:19:42,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 10:19:42,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813717111] [2023-08-27 10:19:42,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:19:42,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 10:19:42,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:19:42,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 10:19:42,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-27 10:19:42,358 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 146 [2023-08-27 10:19:42,359 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 18 transitions, 62 flow. Second operand has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:19:42,359 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:19:42,359 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 146 [2023-08-27 10:19:42,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:19:42,385 INFO L124 PetriNetUnfolderBase]: 8/31 cut-off events. [2023-08-27 10:19:42,385 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2023-08-27 10:19:42,385 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 31 events. 8/31 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 47 event pairs, 3 based on Foata normal form. 4/33 useless extension candidates. Maximal degree in co-relation 76. Up to 12 conditions per place. [2023-08-27 10:19:42,386 INFO L140 encePairwiseOnDemand]: 140/146 looper letters, 12 selfloop transitions, 5 changer transitions 1/20 dead transitions. [2023-08-27 10:19:42,386 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 20 transitions, 100 flow [2023-08-27 10:19:42,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 10:19:42,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 10:19:42,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 261 transitions. [2023-08-27 10:19:42,387 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4469178082191781 [2023-08-27 10:19:42,387 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 261 transitions. [2023-08-27 10:19:42,387 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 261 transitions. [2023-08-27 10:19:42,388 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:19:42,388 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 261 transitions. [2023-08-27 10:19:42,388 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 65.25) internal successors, (261), 4 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:19:42,389 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 146.0) internal successors, (730), 5 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:19:42,390 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 146.0) internal successors, (730), 5 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:19:42,390 INFO L175 Difference]: Start difference. First operand has 26 places, 18 transitions, 62 flow. Second operand 4 states and 261 transitions. [2023-08-27 10:19:42,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 20 transitions, 100 flow [2023-08-27 10:19:42,390 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 20 transitions, 96 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 10:19:42,391 INFO L231 Difference]: Finished difference. Result has 26 places, 15 transitions, 64 flow [2023-08-27 10:19:42,391 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=64, PETRI_PLACES=26, PETRI_TRANSITIONS=15} [2023-08-27 10:19:42,391 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 1 predicate places. [2023-08-27 10:19:42,392 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 15 transitions, 64 flow [2023-08-27 10:19:42,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:19:42,392 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:19:42,392 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 10:19:42,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-27 10:19:42,392 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-08-27 10:19:42,392 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:19:42,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1782239507, now seen corresponding path program 1 times [2023-08-27 10:19:42,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:19:42,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51889235] [2023-08-27 10:19:42,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:19:42,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:19:42,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:19:42,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 10:19:42,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:19:42,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51889235] [2023-08-27 10:19:42,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51889235] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:19:42,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:19:42,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 10:19:42,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465720454] [2023-08-27 10:19:42,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:19:42,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 10:19:42,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:19:42,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 10:19:42,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-27 10:19:42,516 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 146 [2023-08-27 10:19:42,516 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 15 transitions, 64 flow. Second operand has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:19:42,517 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:19:42,517 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 146 [2023-08-27 10:19:42,517 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:19:42,557 INFO L124 PetriNetUnfolderBase]: 10/41 cut-off events. [2023-08-27 10:19:42,557 INFO L125 PetriNetUnfolderBase]: For 52/52 co-relation queries the response was YES. [2023-08-27 10:19:42,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 41 events. 10/41 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 85 event pairs, 6 based on Foata normal form. 1/41 useless extension candidates. Maximal degree in co-relation 124. Up to 29 conditions per place. [2023-08-27 10:19:42,558 INFO L140 encePairwiseOnDemand]: 142/146 looper letters, 13 selfloop transitions, 2 changer transitions 6/22 dead transitions. [2023-08-27 10:19:42,558 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 22 transitions, 146 flow [2023-08-27 10:19:42,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 10:19:42,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 10:19:42,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 250 transitions. [2023-08-27 10:19:42,559 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4280821917808219 [2023-08-27 10:19:42,559 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 250 transitions. [2023-08-27 10:19:42,559 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 250 transitions. [2023-08-27 10:19:42,559 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:19:42,559 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 250 transitions. [2023-08-27 10:19:42,560 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 62.5) internal successors, (250), 4 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:19:42,561 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 146.0) internal successors, (730), 5 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:19:42,561 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 146.0) internal successors, (730), 5 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:19:42,561 INFO L175 Difference]: Start difference. First operand has 26 places, 15 transitions, 64 flow. Second operand 4 states and 250 transitions. [2023-08-27 10:19:42,561 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 22 transitions, 146 flow [2023-08-27 10:19:42,562 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 22 transitions, 128 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-08-27 10:19:42,562 INFO L231 Difference]: Finished difference. Result has 28 places, 15 transitions, 64 flow [2023-08-27 10:19:42,562 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=64, PETRI_PLACES=28, PETRI_TRANSITIONS=15} [2023-08-27 10:19:42,563 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 3 predicate places. [2023-08-27 10:19:42,563 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 15 transitions, 64 flow [2023-08-27 10:19:42,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:19:42,563 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:19:42,563 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 10:19:42,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-27 10:19:42,563 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-08-27 10:19:42,564 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:19:42,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1476255987, now seen corresponding path program 2 times [2023-08-27 10:19:42,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:19:42,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294746459] [2023-08-27 10:19:42,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:19:42,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:19:42,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:19:42,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 10:19:42,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:19:42,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294746459] [2023-08-27 10:19:42,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294746459] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:19:42,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:19:42,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 10:19:42,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250850851] [2023-08-27 10:19:42,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:19:42,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 10:19:42,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:19:42,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 10:19:42,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-27 10:19:42,694 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 146 [2023-08-27 10:19:42,695 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 15 transitions, 64 flow. Second operand has 4 states, 4 states have (on average 58.25) internal successors, (233), 4 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:19:42,696 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:19:42,697 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 146 [2023-08-27 10:19:42,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:19:42,724 INFO L124 PetriNetUnfolderBase]: 3/18 cut-off events. [2023-08-27 10:19:42,728 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2023-08-27 10:19:42,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 18 events. 3/18 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 9 event pairs, 1 based on Foata normal form. 1/19 useless extension candidates. Maximal degree in co-relation 63. Up to 13 conditions per place. [2023-08-27 10:19:42,728 INFO L140 encePairwiseOnDemand]: 139/146 looper letters, 0 selfloop transitions, 0 changer transitions 15/15 dead transitions. [2023-08-27 10:19:42,728 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 15 transitions, 97 flow [2023-08-27 10:19:42,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 10:19:42,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 10:19:42,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 234 transitions. [2023-08-27 10:19:42,729 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4006849315068493 [2023-08-27 10:19:42,729 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 234 transitions. [2023-08-27 10:19:42,729 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 234 transitions. [2023-08-27 10:19:42,729 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:19:42,730 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 234 transitions. [2023-08-27 10:19:42,730 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 58.5) internal successors, (234), 4 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:19:42,731 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 146.0) internal successors, (730), 5 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:19:42,732 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 146.0) internal successors, (730), 5 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:19:42,732 INFO L175 Difference]: Start difference. First operand has 28 places, 15 transitions, 64 flow. Second operand 4 states and 234 transitions. [2023-08-27 10:19:42,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 15 transitions, 97 flow [2023-08-27 10:19:42,732 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 15 transitions, 89 flow, removed 1 selfloop flow, removed 3 redundant places. [2023-08-27 10:19:42,733 INFO L231 Difference]: Finished difference. Result has 26 places, 0 transitions, 0 flow [2023-08-27 10:19:42,733 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=26, PETRI_TRANSITIONS=0} [2023-08-27 10:19:42,734 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 1 predicate places. [2023-08-27 10:19:42,734 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 0 transitions, 0 flow [2023-08-27 10:19:42,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.25) internal successors, (233), 4 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:19:42,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 11 remaining) [2023-08-27 10:19:42,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 11 remaining) [2023-08-27 10:19:42,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 11 remaining) [2023-08-27 10:19:42,737 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 11 remaining) [2023-08-27 10:19:42,737 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (6 of 11 remaining) [2023-08-27 10:19:42,737 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 11 remaining) [2023-08-27 10:19:42,737 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 11 remaining) [2023-08-27 10:19:42,737 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 11 remaining) [2023-08-27 10:19:42,737 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 11 remaining) [2023-08-27 10:19:42,737 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 11 remaining) [2023-08-27 10:19:42,740 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 11 remaining) [2023-08-27 10:19:42,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-27 10:19:42,740 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2023-08-27 10:19:42,744 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 10:19:42,744 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 10:19:42,746 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 10:19:42 BasicIcfg [2023-08-27 10:19:42,746 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 10:19:42,747 INFO L158 Benchmark]: Toolchain (without parser) took 3168.22ms. Allocated memory was 379.6MB in the beginning and 457.2MB in the end (delta: 77.6MB). Free memory was 355.0MB in the beginning and 402.0MB in the end (delta: -47.1MB). Peak memory consumption was 32.1MB. Max. memory is 16.0GB. [2023-08-27 10:19:42,747 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 379.6MB. Free memory is still 356.9MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 10:19:42,749 INFO L158 Benchmark]: CACSL2BoogieTranslator took 327.02ms. Allocated memory is still 379.6MB. Free memory was 355.0MB in the beginning and 335.0MB in the end (delta: 20.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-27 10:19:42,752 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.99ms. Allocated memory is still 379.6MB. Free memory was 335.0MB in the beginning and 333.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 10:19:42,753 INFO L158 Benchmark]: Boogie Preprocessor took 26.79ms. Allocated memory is still 379.6MB. Free memory was 333.0MB in the beginning and 331.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 10:19:42,753 INFO L158 Benchmark]: RCFGBuilder took 322.27ms. Allocated memory is still 379.6MB. Free memory was 331.4MB in the beginning and 317.8MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-27 10:19:42,754 INFO L158 Benchmark]: TraceAbstraction took 2444.25ms. Allocated memory was 379.6MB in the beginning and 457.2MB in the end (delta: 77.6MB). Free memory was 317.2MB in the beginning and 402.0MB in the end (delta: -84.8MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 10:19:42,754 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 379.6MB. Free memory is still 356.9MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 327.02ms. Allocated memory is still 379.6MB. Free memory was 355.0MB in the beginning and 335.0MB in the end (delta: 20.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 43.99ms. Allocated memory is still 379.6MB. Free memory was 335.0MB in the beginning and 333.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 26.79ms. Allocated memory is still 379.6MB. Free memory was 333.0MB in the beginning and 331.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 322.27ms. Allocated memory is still 379.6MB. Free memory was 331.4MB in the beginning and 317.8MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 2444.25ms. Allocated memory was 379.6MB in the beginning and 457.2MB in the end (delta: 77.6MB). Free memory was 317.2MB in the beginning and 402.0MB in the end (delta: -84.8MB). There was no memory consumed. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 267]: Unsoundness Warning unspecified type, defaulting to int C: short [267] - GenericResultAtLocation [Line: 267]: Unsoundness Warning unspecified type, defaulting to int C: short [267] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.5s, 76 PlacesBefore, 25 PlacesAfterwards, 72 TransitionsBefore, 19 TransitionsAfterwards, 1200 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 2 ChoiceCompositions, 72 TotalNumberOfCompositions, 3327 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1744, independent: 1620, independent conditional: 0, independent unconditional: 1620, dependent: 124, dependent conditional: 0, dependent unconditional: 124, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 679, independent: 653, independent conditional: 0, independent unconditional: 653, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1744, independent: 967, independent conditional: 0, independent unconditional: 967, dependent: 98, dependent conditional: 0, dependent unconditional: 98, unknown: 679, unknown conditional: 0, unknown unconditional: 679] , Statistics on independence cache: Total cache size (in pairs): 70, Positive cache size: 61, Positive conditional cache size: 0, Positive unconditional cache size: 61, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 726]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 726]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 741]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 741]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 92 locations, 11 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.4s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 156 IncrementalHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 5 mSDtfsCounter, 156 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=67occurred in iteration=1, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 46 ConstructedInterpolants, 0 QuantifiedInterpolants, 152 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-27 10:19:42,771 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...