/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/pthread-wmm/safe033_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 21:30:14,345 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 21:30:14,404 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 21:30:14,411 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 21:30:14,411 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 21:30:14,441 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 21:30:14,441 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 21:30:14,442 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 21:30:14,442 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 21:30:14,445 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 21:30:14,446 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 21:30:14,446 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 21:30:14,446 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 21:30:14,447 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 21:30:14,447 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 21:30:14,447 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 21:30:14,447 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 21:30:14,447 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 21:30:14,447 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 21:30:14,448 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 21:30:14,448 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 21:30:14,449 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 21:30:14,449 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 21:30:14,449 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 21:30:14,449 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 21:30:14,449 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 21:30:14,450 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 21:30:14,450 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 21:30:14,450 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 21:30:14,450 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 21:30:14,451 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 21:30:14,451 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 21:30:14,451 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 21:30:14,451 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 21:30:14,451 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 21:30:14,452 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-26 21:30:14,693 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 21:30:14,708 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 21:30:14,710 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 21:30:14,711 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 21:30:14,711 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 21:30:14,712 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe033_tso.i [2023-08-26 21:30:15,767 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 21:30:16,014 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 21:30:16,015 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe033_tso.i [2023-08-26 21:30:16,026 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/476e22482/723db84cec294010b1c81ec70e45f019/FLAG936e972dc [2023-08-26 21:30:16,039 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/476e22482/723db84cec294010b1c81ec70e45f019 [2023-08-26 21:30:16,042 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 21:30:16,043 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 21:30:16,043 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 21:30:16,044 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 21:30:16,046 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 21:30:16,046 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 09:30:16" (1/1) ... [2023-08-26 21:30:16,047 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28341ff0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:30:16, skipping insertion in model container [2023-08-26 21:30:16,047 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 09:30:16" (1/1) ... [2023-08-26 21:30:16,091 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 21:30:16,330 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 21:30:16,337 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 21:30:16,360 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-26 21:30:16,362 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-26 21:30:16,373 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 21:30:16,398 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-26 21:30:16,399 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-26 21:30:16,403 INFO L206 MainTranslator]: Completed translation [2023-08-26 21:30:16,404 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:30:16 WrapperNode [2023-08-26 21:30:16,405 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 21:30:16,405 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 21:30:16,405 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 21:30:16,406 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 21:30:16,410 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:30:16" (1/1) ... [2023-08-26 21:30:16,432 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:30:16" (1/1) ... [2023-08-26 21:30:16,449 INFO L138 Inliner]: procedures = 175, calls = 43, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 61 [2023-08-26 21:30:16,449 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 21:30:16,450 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 21:30:16,450 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 21:30:16,450 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 21:30:16,455 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:30:16" (1/1) ... [2023-08-26 21:30:16,455 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:30:16" (1/1) ... [2023-08-26 21:30:16,460 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:30:16" (1/1) ... [2023-08-26 21:30:16,460 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:30:16" (1/1) ... [2023-08-26 21:30:16,474 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:30:16" (1/1) ... [2023-08-26 21:30:16,475 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:30:16" (1/1) ... [2023-08-26 21:30:16,476 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:30:16" (1/1) ... [2023-08-26 21:30:16,476 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:30:16" (1/1) ... [2023-08-26 21:30:16,477 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 21:30:16,478 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 21:30:16,478 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 21:30:16,478 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 21:30:16,479 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:30:16" (1/1) ... [2023-08-26 21:30:16,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 21:30:16,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 21:30:16,518 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 21:30:16,535 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 21:30:16,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 21:30:16,544 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-26 21:30:16,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 21:30:16,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 21:30:16,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 21:30:16,545 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-26 21:30:16,545 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-26 21:30:16,545 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-26 21:30:16,545 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-26 21:30:16,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 21:30:16,545 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-26 21:30:16,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 21:30:16,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 21:30:16,546 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 21:30:16,659 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 21:30:16,661 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 21:30:16,783 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 21:30:16,797 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 21:30:16,798 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-26 21:30:16,799 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 09:30:16 BoogieIcfgContainer [2023-08-26 21:30:16,799 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 21:30:16,806 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 21:30:16,806 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 21:30:16,808 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 21:30:16,808 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 09:30:16" (1/3) ... [2023-08-26 21:30:16,809 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@628e7c80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 09:30:16, skipping insertion in model container [2023-08-26 21:30:16,809 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:30:16" (2/3) ... [2023-08-26 21:30:16,809 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@628e7c80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 09:30:16, skipping insertion in model container [2023-08-26 21:30:16,809 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 09:30:16" (3/3) ... [2023-08-26 21:30:16,810 INFO L112 eAbstractionObserver]: Analyzing ICFG safe033_tso.i [2023-08-26 21:30:16,821 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 21:30:16,821 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2023-08-26 21:30:16,821 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 21:30:16,863 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 21:30:16,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 79 places, 75 transitions, 160 flow [2023-08-26 21:30:16,908 INFO L124 PetriNetUnfolderBase]: 3/73 cut-off events. [2023-08-26 21:30:16,909 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 21:30:16,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 73 events. 3/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 55 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2023-08-26 21:30:16,912 INFO L82 GeneralOperation]: Start removeDead. Operand has 79 places, 75 transitions, 160 flow [2023-08-26 21:30:16,914 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 73 transitions, 152 flow [2023-08-26 21:30:16,916 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 21:30:16,921 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 73 transitions, 152 flow [2023-08-26 21:30:16,923 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 73 transitions, 152 flow [2023-08-26 21:30:16,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 73 transitions, 152 flow [2023-08-26 21:30:16,935 INFO L124 PetriNetUnfolderBase]: 3/73 cut-off events. [2023-08-26 21:30:16,935 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 21:30:16,935 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 73 events. 3/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 55 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2023-08-26 21:30:16,936 INFO L119 LiptonReduction]: Number of co-enabled transitions 1200 [2023-08-26 21:30:18,578 INFO L134 LiptonReduction]: Checked pairs total: 3187 [2023-08-26 21:30:18,578 INFO L136 LiptonReduction]: Total number of compositions: 73 [2023-08-26 21:30:18,591 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 21:30:18,595 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;@497f1501, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 21:30:18,596 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-08-26 21:30:18,598 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 21:30:18,598 INFO L124 PetriNetUnfolderBase]: 1/10 cut-off events. [2023-08-26 21:30:18,598 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 21:30:18,599 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:30:18,599 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-26 21:30:18,599 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-08-26 21:30:18,602 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:30:18,602 INFO L85 PathProgramCache]: Analyzing trace with hash 277358818, now seen corresponding path program 1 times [2023-08-26 21:30:18,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:30:18,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788770297] [2023-08-26 21:30:18,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:30:18,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:30:18,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:30:18,758 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 21:30:18,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:30:18,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788770297] [2023-08-26 21:30:18,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788770297] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:30:18,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:30:18,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 21:30:18,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439223244] [2023-08-26 21:30:18,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:30:18,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 21:30:18,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:30:18,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 21:30:18,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 21:30:18,799 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 148 [2023-08-26 21:30:18,800 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 19 transitions, 44 flow. Second operand has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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 21:30:18,801 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:30:18,801 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 148 [2023-08-26 21:30:18,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:30:18,877 INFO L124 PetriNetUnfolderBase]: 72/148 cut-off events. [2023-08-26 21:30:18,877 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-26 21:30:18,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 304 conditions, 148 events. 72/148 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 511 event pairs, 19 based on Foata normal form. 0/112 useless extension candidates. Maximal degree in co-relation 294. Up to 101 conditions per place. [2023-08-26 21:30:18,881 INFO L140 encePairwiseOnDemand]: 140/148 looper letters, 23 selfloop transitions, 3 changer transitions 0/28 dead transitions. [2023-08-26 21:30:18,881 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 28 transitions, 117 flow [2023-08-26 21:30:18,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 21:30:18,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 21:30:18,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 215 transitions. [2023-08-26 21:30:18,894 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48423423423423423 [2023-08-26 21:30:18,895 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 215 transitions. [2023-08-26 21:30:18,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 215 transitions. [2023-08-26 21:30:18,897 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:30:18,898 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 215 transitions. [2023-08-26 21:30:18,903 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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 21:30:18,907 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 148.0) internal successors, (592), 4 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:18,908 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 148.0) internal successors, (592), 4 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:18,910 INFO L175 Difference]: Start difference. First operand has 25 places, 19 transitions, 44 flow. Second operand 3 states and 215 transitions. [2023-08-26 21:30:18,910 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 28 transitions, 117 flow [2023-08-26 21:30:18,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 28 transitions, 114 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 21:30:18,913 INFO L231 Difference]: Finished difference. Result has 26 places, 20 transitions, 65 flow [2023-08-26 21:30:18,914 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, 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=65, PETRI_PLACES=26, PETRI_TRANSITIONS=20} [2023-08-26 21:30:18,917 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 1 predicate places. [2023-08-26 21:30:18,917 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 20 transitions, 65 flow [2023-08-26 21:30:18,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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 21:30:18,918 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:30:18,918 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:30:18,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 21:30:18,918 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-08-26 21:30:18,920 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:30:18,921 INFO L85 PathProgramCache]: Analyzing trace with hash 279350203, now seen corresponding path program 1 times [2023-08-26 21:30:18,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:30:18,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045168290] [2023-08-26 21:30:18,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:30:18,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:30:18,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:30:19,105 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 21:30:19,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:30:19,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045168290] [2023-08-26 21:30:19,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045168290] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:30:19,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:30:19,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 21:30:19,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546794559] [2023-08-26 21:30:19,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:30:19,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 21:30:19,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:30:19,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 21:30:19,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 21:30:19,109 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 148 [2023-08-26 21:30:19,109 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 20 transitions, 65 flow. Second operand has 4 states, 4 states have (on average 60.75) internal successors, (243), 4 states have internal predecessors, (243), 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 21:30:19,109 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:30:19,109 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 148 [2023-08-26 21:30:19,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:30:19,207 INFO L124 PetriNetUnfolderBase]: 97/199 cut-off events. [2023-08-26 21:30:19,207 INFO L125 PetriNetUnfolderBase]: For 31/33 co-relation queries the response was YES. [2023-08-26 21:30:19,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 491 conditions, 199 events. 97/199 cut-off events. For 31/33 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 797 event pairs, 24 based on Foata normal form. 0/175 useless extension candidates. Maximal degree in co-relation 480. Up to 111 conditions per place. [2023-08-26 21:30:19,209 INFO L140 encePairwiseOnDemand]: 142/148 looper letters, 29 selfloop transitions, 7 changer transitions 2/41 dead transitions. [2023-08-26 21:30:19,209 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 41 transitions, 199 flow [2023-08-26 21:30:19,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 21:30:19,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 21:30:19,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 331 transitions. [2023-08-26 21:30:19,213 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4472972972972973 [2023-08-26 21:30:19,213 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 331 transitions. [2023-08-26 21:30:19,213 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 331 transitions. [2023-08-26 21:30:19,213 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:30:19,213 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 331 transitions. [2023-08-26 21:30:19,214 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 66.2) internal successors, (331), 5 states have internal predecessors, (331), 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 21:30:19,215 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 148.0) internal successors, (888), 6 states have internal predecessors, (888), 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 21:30:19,216 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 148.0) internal successors, (888), 6 states have internal predecessors, (888), 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 21:30:19,216 INFO L175 Difference]: Start difference. First operand has 26 places, 20 transitions, 65 flow. Second operand 5 states and 331 transitions. [2023-08-26 21:30:19,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 41 transitions, 199 flow [2023-08-26 21:30:19,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 41 transitions, 194 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 21:30:19,217 INFO L231 Difference]: Finished difference. Result has 33 places, 26 transitions, 118 flow [2023-08-26 21:30:19,218 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=118, PETRI_PLACES=33, PETRI_TRANSITIONS=26} [2023-08-26 21:30:19,218 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 8 predicate places. [2023-08-26 21:30:19,218 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 26 transitions, 118 flow [2023-08-26 21:30:19,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.75) internal successors, (243), 4 states have internal predecessors, (243), 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 21:30:19,218 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:30:19,219 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:30:19,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 21:30:19,219 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-08-26 21:30:19,219 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:30:19,219 INFO L85 PathProgramCache]: Analyzing trace with hash 69891317, now seen corresponding path program 1 times [2023-08-26 21:30:19,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:30:19,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882142088] [2023-08-26 21:30:19,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:30:19,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:30:19,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:30:19,308 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 21:30:19,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:30:19,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882142088] [2023-08-26 21:30:19,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882142088] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:30:19,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:30:19,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 21:30:19,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228114248] [2023-08-26 21:30:19,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:30:19,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 21:30:19,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:30:19,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 21:30:19,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 21:30:19,310 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 148 [2023-08-26 21:30:19,311 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 26 transitions, 118 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) [2023-08-26 21:30:19,311 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:30:19,311 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 148 [2023-08-26 21:30:19,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:30:19,357 INFO L124 PetriNetUnfolderBase]: 54/132 cut-off events. [2023-08-26 21:30:19,357 INFO L125 PetriNetUnfolderBase]: For 96/98 co-relation queries the response was YES. [2023-08-26 21:30:19,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 410 conditions, 132 events. 54/132 cut-off events. For 96/98 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 536 event pairs, 9 based on Foata normal form. 17/118 useless extension candidates. Maximal degree in co-relation 394. Up to 71 conditions per place. [2023-08-26 21:30:19,358 INFO L140 encePairwiseOnDemand]: 143/148 looper letters, 28 selfloop transitions, 4 changer transitions 0/35 dead transitions. [2023-08-26 21:30:19,358 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 35 transitions, 208 flow [2023-08-26 21:30:19,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 21:30:19,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 21:30:19,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 269 transitions. [2023-08-26 21:30:19,359 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4543918918918919 [2023-08-26 21:30:19,359 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 269 transitions. [2023-08-26 21:30:19,359 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 269 transitions. [2023-08-26 21:30:19,360 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:30:19,360 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 269 transitions. [2023-08-26 21:30:19,360 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 67.25) internal successors, (269), 4 states have internal predecessors, (269), 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 21:30:19,361 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 148.0) internal successors, (740), 5 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:19,362 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 148.0) internal successors, (740), 5 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:19,362 INFO L175 Difference]: Start difference. First operand has 33 places, 26 transitions, 118 flow. Second operand 4 states and 269 transitions. [2023-08-26 21:30:19,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 35 transitions, 208 flow [2023-08-26 21:30:19,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 35 transitions, 197 flow, removed 1 selfloop flow, removed 3 redundant places. [2023-08-26 21:30:19,364 INFO L231 Difference]: Finished difference. Result has 34 places, 23 transitions, 107 flow [2023-08-26 21:30:19,364 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=107, PETRI_PLACES=34, PETRI_TRANSITIONS=23} [2023-08-26 21:30:19,364 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 9 predicate places. [2023-08-26 21:30:19,365 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 23 transitions, 107 flow [2023-08-26 21:30:19,365 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) [2023-08-26 21:30:19,365 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:30:19,365 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:30:19,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 21:30:19,365 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-08-26 21:30:19,366 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:30:19,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1857217465, now seen corresponding path program 1 times [2023-08-26 21:30:19,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:30:19,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846363678] [2023-08-26 21:30:19,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:30:19,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:30:19,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:30:19,395 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 21:30:19,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:30:19,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846363678] [2023-08-26 21:30:19,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846363678] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:30:19,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:30:19,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 21:30:19,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445860810] [2023-08-26 21:30:19,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:30:19,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 21:30:19,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:30:19,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 21:30:19,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 21:30:19,397 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 148 [2023-08-26 21:30:19,398 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 23 transitions, 107 flow. Second operand has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 states have internal predecessors, (252), 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 21:30:19,398 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:30:19,398 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 148 [2023-08-26 21:30:19,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:30:19,428 INFO L124 PetriNetUnfolderBase]: 45/111 cut-off events. [2023-08-26 21:30:19,428 INFO L125 PetriNetUnfolderBase]: For 134/138 co-relation queries the response was YES. [2023-08-26 21:30:19,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 382 conditions, 111 events. 45/111 cut-off events. For 134/138 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 397 event pairs, 21 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 365. Up to 82 conditions per place. [2023-08-26 21:30:19,429 INFO L140 encePairwiseOnDemand]: 143/148 looper letters, 19 selfloop transitions, 3 changer transitions 0/25 dead transitions. [2023-08-26 21:30:19,429 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 25 transitions, 157 flow [2023-08-26 21:30:19,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 21:30:19,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 21:30:19,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 267 transitions. [2023-08-26 21:30:19,430 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4510135135135135 [2023-08-26 21:30:19,430 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 267 transitions. [2023-08-26 21:30:19,430 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 267 transitions. [2023-08-26 21:30:19,431 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:30:19,431 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 267 transitions. [2023-08-26 21:30:19,431 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 66.75) internal successors, (267), 4 states have internal predecessors, (267), 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 21:30:19,432 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 148.0) internal successors, (740), 5 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:19,433 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 148.0) internal successors, (740), 5 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:19,433 INFO L175 Difference]: Start difference. First operand has 34 places, 23 transitions, 107 flow. Second operand 4 states and 267 transitions. [2023-08-26 21:30:19,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 25 transitions, 157 flow [2023-08-26 21:30:19,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 25 transitions, 152 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 21:30:19,434 INFO L231 Difference]: Finished difference. Result has 33 places, 21 transitions, 100 flow [2023-08-26 21:30:19,434 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=100, PETRI_PLACES=33, PETRI_TRANSITIONS=21} [2023-08-26 21:30:19,434 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 8 predicate places. [2023-08-26 21:30:19,435 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 21 transitions, 100 flow [2023-08-26 21:30:19,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 states have internal predecessors, (252), 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 21:30:19,435 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:30:19,435 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:30:19,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 21:30:19,435 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-08-26 21:30:19,435 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:30:19,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1857394164, now seen corresponding path program 1 times [2023-08-26 21:30:19,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:30:19,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703185949] [2023-08-26 21:30:19,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:30:19,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:30:19,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:30:19,463 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 21:30:19,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:30:19,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703185949] [2023-08-26 21:30:19,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703185949] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:30:19,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:30:19,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 21:30:19,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368283760] [2023-08-26 21:30:19,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:30:19,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 21:30:19,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:30:19,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 21:30:19,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-26 21:30:19,465 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 148 [2023-08-26 21:30:19,465 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 21 transitions, 100 flow. Second operand has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 states have internal predecessors, (252), 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 21:30:19,465 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:30:19,465 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 148 [2023-08-26 21:30:19,465 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:30:19,509 INFO L124 PetriNetUnfolderBase]: 36/90 cut-off events. [2023-08-26 21:30:19,509 INFO L125 PetriNetUnfolderBase]: For 118/122 co-relation queries the response was YES. [2023-08-26 21:30:19,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 320 conditions, 90 events. 36/90 cut-off events. For 118/122 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 281 event pairs, 9 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 303. Up to 44 conditions per place. [2023-08-26 21:30:19,510 INFO L140 encePairwiseOnDemand]: 143/148 looper letters, 16 selfloop transitions, 5 changer transitions 3/27 dead transitions. [2023-08-26 21:30:19,510 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 27 transitions, 173 flow [2023-08-26 21:30:19,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 21:30:19,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 21:30:19,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 269 transitions. [2023-08-26 21:30:19,511 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4543918918918919 [2023-08-26 21:30:19,511 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 269 transitions. [2023-08-26 21:30:19,511 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 269 transitions. [2023-08-26 21:30:19,511 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:30:19,511 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 269 transitions. [2023-08-26 21:30:19,512 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 67.25) internal successors, (269), 4 states have internal predecessors, (269), 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 21:30:19,513 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 148.0) internal successors, (740), 5 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:19,513 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 148.0) internal successors, (740), 5 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:19,513 INFO L175 Difference]: Start difference. First operand has 33 places, 21 transitions, 100 flow. Second operand 4 states and 269 transitions. [2023-08-26 21:30:19,513 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 27 transitions, 173 flow [2023-08-26 21:30:19,514 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 27 transitions, 169 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 21:30:19,514 INFO L231 Difference]: Finished difference. Result has 32 places, 17 transitions, 91 flow [2023-08-26 21:30:19,514 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=91, PETRI_PLACES=32, PETRI_TRANSITIONS=17} [2023-08-26 21:30:19,515 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 7 predicate places. [2023-08-26 21:30:19,515 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 17 transitions, 91 flow [2023-08-26 21:30:19,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 states have internal predecessors, (252), 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 21:30:19,515 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:30:19,515 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:30:19,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-26 21:30:19,516 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-08-26 21:30:19,516 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:30:19,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1882221415, now seen corresponding path program 1 times [2023-08-26 21:30:19,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:30:19,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81725786] [2023-08-26 21:30:19,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:30:19,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:30:19,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:30:19,623 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 21:30:19,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:30:19,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81725786] [2023-08-26 21:30:19,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81725786] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:30:19,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:30:19,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 21:30:19,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671780104] [2023-08-26 21:30:19,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:30:19,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 21:30:19,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:30:19,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 21:30:19,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-26 21:30:19,626 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 148 [2023-08-26 21:30:19,627 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 17 transitions, 91 flow. Second operand has 5 states, 5 states have (on average 60.8) internal successors, (304), 5 states have internal predecessors, (304), 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 21:30:19,627 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:30:19,627 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 148 [2023-08-26 21:30:19,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:30:19,661 INFO L124 PetriNetUnfolderBase]: 12/40 cut-off events. [2023-08-26 21:30:19,661 INFO L125 PetriNetUnfolderBase]: For 68/68 co-relation queries the response was YES. [2023-08-26 21:30:19,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 40 events. 12/40 cut-off events. For 68/68 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 73 event pairs, 3 based on Foata normal form. 5/44 useless extension candidates. Maximal degree in co-relation 138. Up to 16 conditions per place. [2023-08-26 21:30:19,661 INFO L140 encePairwiseOnDemand]: 143/148 looper letters, 12 selfloop transitions, 6 changer transitions 1/22 dead transitions. [2023-08-26 21:30:19,661 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 22 transitions, 147 flow [2023-08-26 21:30:19,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 21:30:19,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 21:30:19,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 315 transitions. [2023-08-26 21:30:19,663 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42567567567567566 [2023-08-26 21:30:19,663 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 315 transitions. [2023-08-26 21:30:19,663 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 315 transitions. [2023-08-26 21:30:19,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:30:19,664 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 315 transitions. [2023-08-26 21:30:19,665 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 63.0) internal successors, (315), 5 states have internal predecessors, (315), 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 21:30:19,666 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 148.0) internal successors, (888), 6 states have internal predecessors, (888), 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 21:30:19,666 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 148.0) internal successors, (888), 6 states have internal predecessors, (888), 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 21:30:19,666 INFO L175 Difference]: Start difference. First operand has 32 places, 17 transitions, 91 flow. Second operand 5 states and 315 transitions. [2023-08-26 21:30:19,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 22 transitions, 147 flow [2023-08-26 21:30:19,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 22 transitions, 115 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-08-26 21:30:19,668 INFO L231 Difference]: Finished difference. Result has 30 places, 17 transitions, 85 flow [2023-08-26 21:30:19,669 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=85, PETRI_PLACES=30, PETRI_TRANSITIONS=17} [2023-08-26 21:30:19,670 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 5 predicate places. [2023-08-26 21:30:19,673 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 17 transitions, 85 flow [2023-08-26 21:30:19,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.8) internal successors, (304), 5 states have internal predecessors, (304), 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 21:30:19,673 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:30:19,673 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:30:19,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-26 21:30:19,673 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-08-26 21:30:19,673 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:30:19,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1564031524, now seen corresponding path program 1 times [2023-08-26 21:30:19,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:30:19,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319254964] [2023-08-26 21:30:19,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:30:19,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:30:19,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:30:19,804 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 21:30:19,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:30:19,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319254964] [2023-08-26 21:30:19,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319254964] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:30:19,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:30:19,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 21:30:19,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039047619] [2023-08-26 21:30:19,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:30:19,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 21:30:19,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:30:19,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 21:30:19,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 21:30:19,807 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 148 [2023-08-26 21:30:19,807 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 17 transitions, 85 flow. Second operand has 4 states, 4 states have (on average 60.25) internal successors, (241), 4 states have internal predecessors, (241), 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 21:30:19,807 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:30:19,807 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 148 [2023-08-26 21:30:19,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:30:19,846 INFO L124 PetriNetUnfolderBase]: 16/52 cut-off events. [2023-08-26 21:30:19,846 INFO L125 PetriNetUnfolderBase]: For 60/60 co-relation queries the response was YES. [2023-08-26 21:30:19,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 195 conditions, 52 events. 16/52 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 116 event pairs, 0 based on Foata normal form. 1/53 useless extension candidates. Maximal degree in co-relation 180. Up to 36 conditions per place. [2023-08-26 21:30:19,847 INFO L140 encePairwiseOnDemand]: 142/148 looper letters, 17 selfloop transitions, 5 changer transitions 5/27 dead transitions. [2023-08-26 21:30:19,847 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 27 transitions, 195 flow [2023-08-26 21:30:19,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 21:30:19,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 21:30:19,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 251 transitions. [2023-08-26 21:30:19,848 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4239864864864865 [2023-08-26 21:30:19,849 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 251 transitions. [2023-08-26 21:30:19,849 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 251 transitions. [2023-08-26 21:30:19,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:30:19,849 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 251 transitions. [2023-08-26 21:30:19,850 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 62.75) internal successors, (251), 4 states have internal predecessors, (251), 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 21:30:19,850 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 148.0) internal successors, (740), 5 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:19,851 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 148.0) internal successors, (740), 5 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:19,851 INFO L175 Difference]: Start difference. First operand has 30 places, 17 transitions, 85 flow. Second operand 4 states and 251 transitions. [2023-08-26 21:30:19,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 27 transitions, 195 flow [2023-08-26 21:30:19,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 27 transitions, 143 flow, removed 6 selfloop flow, removed 7 redundant places. [2023-08-26 21:30:19,854 INFO L231 Difference]: Finished difference. Result has 28 places, 18 transitions, 81 flow [2023-08-26 21:30:19,854 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=81, PETRI_PLACES=28, PETRI_TRANSITIONS=18} [2023-08-26 21:30:19,855 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 3 predicate places. [2023-08-26 21:30:19,858 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 18 transitions, 81 flow [2023-08-26 21:30:19,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.25) internal successors, (241), 4 states have internal predecessors, (241), 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 21:30:19,858 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:30:19,861 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:30:19,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-26 21:30:19,862 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-08-26 21:30:19,862 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:30:19,862 INFO L85 PathProgramCache]: Analyzing trace with hash 990022008, now seen corresponding path program 2 times [2023-08-26 21:30:19,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:30:19,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259111463] [2023-08-26 21:30:19,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:30:19,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:30:19,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:30:19,980 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 21:30:19,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:30:19,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259111463] [2023-08-26 21:30:19,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259111463] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:30:19,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:30:19,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 21:30:19,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418123742] [2023-08-26 21:30:19,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:30:19,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 21:30:19,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:30:19,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 21:30:19,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-26 21:30:19,982 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 148 [2023-08-26 21:30:19,982 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 18 transitions, 81 flow. Second operand has 5 states, 5 states have (on average 59.6) internal successors, (298), 5 states have internal predecessors, (298), 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 21:30:19,982 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:30:19,982 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 148 [2023-08-26 21:30:19,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:30:20,037 INFO L124 PetriNetUnfolderBase]: 16/57 cut-off events. [2023-08-26 21:30:20,037 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2023-08-26 21:30:20,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 57 events. 16/57 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 149 event pairs, 1 based on Foata normal form. 1/58 useless extension candidates. Maximal degree in co-relation 190. Up to 34 conditions per place. [2023-08-26 21:30:20,038 INFO L140 encePairwiseOnDemand]: 143/148 looper letters, 13 selfloop transitions, 3 changer transitions 11/27 dead transitions. [2023-08-26 21:30:20,038 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 27 transitions, 166 flow [2023-08-26 21:30:20,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 21:30:20,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 21:30:20,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 309 transitions. [2023-08-26 21:30:20,039 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4175675675675676 [2023-08-26 21:30:20,039 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 309 transitions. [2023-08-26 21:30:20,039 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 309 transitions. [2023-08-26 21:30:20,040 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:30:20,040 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 309 transitions. [2023-08-26 21:30:20,040 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 61.8) internal successors, (309), 5 states have internal predecessors, (309), 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 21:30:20,041 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 148.0) internal successors, (888), 6 states have internal predecessors, (888), 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 21:30:20,041 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 148.0) internal successors, (888), 6 states have internal predecessors, (888), 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 21:30:20,042 INFO L175 Difference]: Start difference. First operand has 28 places, 18 transitions, 81 flow. Second operand 5 states and 309 transitions. [2023-08-26 21:30:20,042 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 27 transitions, 166 flow [2023-08-26 21:30:20,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 27 transitions, 157 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-08-26 21:30:20,042 INFO L231 Difference]: Finished difference. Result has 31 places, 15 transitions, 70 flow [2023-08-26 21:30:20,043 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=25, 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=5, PETRI_FLOW=70, PETRI_PLACES=31, PETRI_TRANSITIONS=15} [2023-08-26 21:30:20,043 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 6 predicate places. [2023-08-26 21:30:20,043 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 15 transitions, 70 flow [2023-08-26 21:30:20,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.6) internal successors, (298), 5 states have internal predecessors, (298), 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 21:30:20,043 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:30:20,043 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:30:20,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-26 21:30:20,044 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-08-26 21:30:20,044 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:30:20,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1974366844, now seen corresponding path program 3 times [2023-08-26 21:30:20,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:30:20,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959653999] [2023-08-26 21:30:20,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:30:20,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:30:20,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:30:20,141 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 21:30:20,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:30:20,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959653999] [2023-08-26 21:30:20,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959653999] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:30:20,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:30:20,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 21:30:20,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517978722] [2023-08-26 21:30:20,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:30:20,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 21:30:20,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:30:20,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 21:30:20,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-26 21:30:20,143 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 148 [2023-08-26 21:30:20,143 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 15 transitions, 70 flow. Second operand has 5 states, 5 states have (on average 60.4) internal successors, (302), 5 states have internal predecessors, (302), 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 21:30:20,143 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:30:20,143 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 148 [2023-08-26 21:30:20,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:30:20,167 INFO L124 PetriNetUnfolderBase]: 3/18 cut-off events. [2023-08-26 21:30:20,167 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-26 21:30:20,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 18 events. 3/18 cut-off events. For 16/16 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 66. Up to 7 conditions per place. [2023-08-26 21:30:20,167 INFO L140 encePairwiseOnDemand]: 144/148 looper letters, 0 selfloop transitions, 0 changer transitions 15/15 dead transitions. [2023-08-26 21:30:20,167 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 15 transitions, 99 flow [2023-08-26 21:30:20,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 21:30:20,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 21:30:20,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 303 transitions. [2023-08-26 21:30:20,168 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40945945945945944 [2023-08-26 21:30:20,168 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 303 transitions. [2023-08-26 21:30:20,168 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 303 transitions. [2023-08-26 21:30:20,169 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:30:20,169 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 303 transitions. [2023-08-26 21:30:20,169 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 60.6) internal successors, (303), 5 states have internal predecessors, (303), 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 21:30:20,170 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 148.0) internal successors, (888), 6 states have internal predecessors, (888), 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 21:30:20,170 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 148.0) internal successors, (888), 6 states have internal predecessors, (888), 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 21:30:20,170 INFO L175 Difference]: Start difference. First operand has 31 places, 15 transitions, 70 flow. Second operand 5 states and 303 transitions. [2023-08-26 21:30:20,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 15 transitions, 99 flow [2023-08-26 21:30:20,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 15 transitions, 75 flow, removed 4 selfloop flow, removed 8 redundant places. [2023-08-26 21:30:20,171 INFO L231 Difference]: Finished difference. Result has 25 places, 0 transitions, 0 flow [2023-08-26 21:30:20,171 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=21, 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=5, PETRI_FLOW=0, PETRI_PLACES=25, PETRI_TRANSITIONS=0} [2023-08-26 21:30:20,171 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 0 predicate places. [2023-08-26 21:30:20,171 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 0 transitions, 0 flow [2023-08-26 21:30:20,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.4) internal successors, (302), 5 states have internal predecessors, (302), 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 21:30:20,173 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 11 remaining) [2023-08-26 21:30:20,174 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 11 remaining) [2023-08-26 21:30:20,174 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 11 remaining) [2023-08-26 21:30:20,174 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 11 remaining) [2023-08-26 21:30:20,174 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (6 of 11 remaining) [2023-08-26 21:30:20,174 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 11 remaining) [2023-08-26 21:30:20,174 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 11 remaining) [2023-08-26 21:30:20,174 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 11 remaining) [2023-08-26 21:30:20,174 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 11 remaining) [2023-08-26 21:30:20,174 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 11 remaining) [2023-08-26 21:30:20,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 11 remaining) [2023-08-26 21:30:20,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-26 21:30:20,175 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1] [2023-08-26 21:30:20,178 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 21:30:20,178 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 21:30:20,180 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 09:30:20 BasicIcfg [2023-08-26 21:30:20,180 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 21:30:20,180 INFO L158 Benchmark]: Toolchain (without parser) took 4137.41ms. Allocated memory was 335.5MB in the beginning and 402.7MB in the end (delta: 67.1MB). Free memory was 289.4MB in the beginning and 297.8MB in the end (delta: -8.4MB). Peak memory consumption was 60.8MB. Max. memory is 16.0GB. [2023-08-26 21:30:20,180 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 335.5MB. Free memory is still 312.7MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 21:30:20,180 INFO L158 Benchmark]: CACSL2BoogieTranslator took 361.28ms. Allocated memory is still 335.5MB. Free memory was 289.4MB in the beginning and 269.5MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-26 21:30:20,181 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.92ms. Allocated memory is still 335.5MB. Free memory was 269.5MB in the beginning and 267.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 21:30:20,181 INFO L158 Benchmark]: Boogie Preprocessor took 27.41ms. Allocated memory is still 335.5MB. Free memory was 267.4MB in the beginning and 266.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 21:30:20,181 INFO L158 Benchmark]: RCFGBuilder took 321.16ms. Allocated memory is still 335.5MB. Free memory was 266.3MB in the beginning and 250.6MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-08-26 21:30:20,181 INFO L158 Benchmark]: TraceAbstraction took 3373.87ms. Allocated memory was 335.5MB in the beginning and 402.7MB in the end (delta: 67.1MB). Free memory was 249.6MB in the beginning and 297.8MB in the end (delta: -48.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-08-26 21:30:20,182 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 335.5MB. Free memory is still 312.7MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 361.28ms. Allocated memory is still 335.5MB. Free memory was 289.4MB in the beginning and 269.5MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 43.92ms. Allocated memory is still 335.5MB. Free memory was 269.5MB in the beginning and 267.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 27.41ms. Allocated memory is still 335.5MB. Free memory was 267.4MB in the beginning and 266.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 321.16ms. Allocated memory is still 335.5MB. Free memory was 266.3MB in the beginning and 250.6MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 3373.87ms. Allocated memory was 335.5MB in the beginning and 402.7MB in the end (delta: 67.1MB). Free memory was 249.6MB in the beginning and 297.8MB in the end (delta: -48.2MB). Peak memory consumption was 21.0MB. 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: 1.7s, 77 PlacesBefore, 25 PlacesAfterwards, 73 TransitionsBefore, 19 TransitionsAfterwards, 1200 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 2 ChoiceCompositions, 73 TotalNumberOfCompositions, 3187 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1988, independent: 1868, independent conditional: 0, independent unconditional: 1868, dependent: 120, dependent conditional: 0, dependent unconditional: 120, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 697, independent: 674, independent conditional: 0, independent unconditional: 674, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1988, independent: 1194, independent conditional: 0, independent unconditional: 1194, dependent: 97, dependent conditional: 0, dependent unconditional: 97, unknown: 697, unknown conditional: 0, unknown unconditional: 697] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 63, Positive conditional cache size: 0, Positive unconditional cache size: 63, 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: 730]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 730]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 745]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 745]: 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, 93 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: 3.3s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 101 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 101 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 334 IncrementalHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 12 mSDtfsCounter, 334 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=118occurred in iteration=2, InterpolantAutomatonStates: 39, 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, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 89 NumberOfCodeBlocks, 89 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 80 ConstructedInterpolants, 0 QuantifiedInterpolants, 286 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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! [2023-08-26 21:30:20,194 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...