/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/pthread-wmm/safe022_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 10:18:21,327 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 10:18:21,417 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-27 10:18:21,423 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 10:18:21,424 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 10:18:21,454 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 10:18:21,455 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 10:18:21,455 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 10:18:21,456 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 10:18:21,459 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 10:18:21,459 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 10:18:21,460 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 10:18:21,460 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 10:18:21,461 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 10:18:21,461 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 10:18:21,461 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 10:18:21,462 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 10:18:21,462 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 10:18:21,462 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 10:18:21,462 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 10:18:21,463 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 10:18:21,464 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 10:18:21,464 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 10:18:21,464 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 10:18:21,465 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 10:18:21,465 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 10:18:21,465 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 10:18:21,465 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 10:18:21,466 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 10:18:21,466 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 10:18:21,466 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 10:18:21,467 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 10:18:21,467 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 10:18:21,467 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 10:18:21,467 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 10:18:21,467 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 10:18:21,818 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 10:18:21,837 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 10:18:21,839 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 10:18:21,840 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 10:18:21,841 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 10:18:21,842 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe022_tso.i [2023-08-27 10:18:22,981 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 10:18:23,273 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 10:18:23,274 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe022_tso.i [2023-08-27 10:18:23,296 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/edd45f995/4c84bd31fd6144b18a28c68605856ca5/FLAGc040b904e [2023-08-27 10:18:23,314 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/edd45f995/4c84bd31fd6144b18a28c68605856ca5 [2023-08-27 10:18:23,318 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 10:18:23,319 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 10:18:23,322 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 10:18:23,322 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 10:18:23,324 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 10:18:23,325 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 10:18:23" (1/1) ... [2023-08-27 10:18:23,326 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4829c80b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:18:23, skipping insertion in model container [2023-08-27 10:18:23,326 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 10:18:23" (1/1) ... [2023-08-27 10:18:23,375 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 10:18:23,697 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 10:18:23,707 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 10:18:23,739 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-27 10:18:23,749 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-27 10:18:23,766 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 10:18:23,796 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-27 10:18:23,796 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-27 10:18:23,803 INFO L206 MainTranslator]: Completed translation [2023-08-27 10:18:23,803 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:18:23 WrapperNode [2023-08-27 10:18:23,803 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 10:18:23,804 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 10:18:23,804 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 10:18:23,804 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 10:18:23,809 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:18:23" (1/1) ... [2023-08-27 10:18:23,829 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:18:23" (1/1) ... [2023-08-27 10:18:23,845 INFO L138 Inliner]: procedures = 175, calls = 41, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 62 [2023-08-27 10:18:23,846 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 10:18:23,846 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 10:18:23,846 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 10:18:23,846 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 10:18:23,852 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:18:23" (1/1) ... [2023-08-27 10:18:23,852 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:18:23" (1/1) ... [2023-08-27 10:18:23,854 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:18:23" (1/1) ... [2023-08-27 10:18:23,855 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:18:23" (1/1) ... [2023-08-27 10:18:23,859 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:18:23" (1/1) ... [2023-08-27 10:18:23,861 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:18:23" (1/1) ... [2023-08-27 10:18:23,863 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:18:23" (1/1) ... [2023-08-27 10:18:23,864 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:18:23" (1/1) ... [2023-08-27 10:18:23,867 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 10:18:23,867 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 10:18:23,867 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 10:18:23,868 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 10:18:23,868 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:18:23" (1/1) ... [2023-08-27 10:18:23,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 10:18:23,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 10:18:23,906 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-27 10:18:23,929 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-27 10:18:23,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 10:18:23,944 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-27 10:18:23,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 10:18:23,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 10:18:23,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 10:18:23,945 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-27 10:18:23,945 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-27 10:18:23,945 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-27 10:18:23,945 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-27 10:18:23,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 10:18:23,946 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-27 10:18:23,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 10:18:23,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 10:18:23,947 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-27 10:18:24,071 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 10:18:24,074 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 10:18:24,290 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 10:18:24,314 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 10:18:24,314 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-27 10:18:24,316 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 10:18:24 BoogieIcfgContainer [2023-08-27 10:18:24,316 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 10:18:24,322 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 10:18:24,322 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 10:18:24,325 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 10:18:24,325 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 10:18:23" (1/3) ... [2023-08-27 10:18:24,326 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7901ed6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 10:18:24, skipping insertion in model container [2023-08-27 10:18:24,327 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:18:23" (2/3) ... [2023-08-27 10:18:24,327 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7901ed6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 10:18:24, skipping insertion in model container [2023-08-27 10:18:24,327 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 10:18:24" (3/3) ... [2023-08-27 10:18:24,328 INFO L112 eAbstractionObserver]: Analyzing ICFG safe022_tso.i [2023-08-27 10:18:24,343 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 10:18:24,344 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2023-08-27 10:18:24,344 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 10:18:24,422 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 10:18:24,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 80 places, 76 transitions, 162 flow [2023-08-27 10:18:24,510 INFO L124 PetriNetUnfolderBase]: 3/74 cut-off events. [2023-08-27 10:18:24,511 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 10:18:24,515 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 74 events. 3/74 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 57 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2023-08-27 10:18:24,515 INFO L82 GeneralOperation]: Start removeDead. Operand has 80 places, 76 transitions, 162 flow [2023-08-27 10:18:24,520 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 78 places, 74 transitions, 154 flow [2023-08-27 10:18:24,524 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 10:18:24,535 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 74 transitions, 154 flow [2023-08-27 10:18:24,539 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 74 transitions, 154 flow [2023-08-27 10:18:24,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 78 places, 74 transitions, 154 flow [2023-08-27 10:18:24,570 INFO L124 PetriNetUnfolderBase]: 3/74 cut-off events. [2023-08-27 10:18:24,570 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 10:18:24,571 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 74 events. 3/74 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 56 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2023-08-27 10:18:24,573 INFO L119 LiptonReduction]: Number of co-enabled transitions 1200 [2023-08-27 10:18:26,567 INFO L134 LiptonReduction]: Checked pairs total: 3363 [2023-08-27 10:18:26,568 INFO L136 LiptonReduction]: Total number of compositions: 74 [2023-08-27 10:18:26,583 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 10:18:26,588 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;@36f7973b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 10:18:26,588 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-08-27 10:18:26,592 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 10:18:26,592 INFO L124 PetriNetUnfolderBase]: 1/10 cut-off events. [2023-08-27 10:18:26,592 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 10:18:26,592 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:18:26,593 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-27 10:18:26,593 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-08-27 10:18:26,597 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:18:26,597 INFO L85 PathProgramCache]: Analyzing trace with hash 280255336, now seen corresponding path program 1 times [2023-08-27 10:18:26,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:18:26,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108192116] [2023-08-27 10:18:26,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:18:26,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:18:26,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:18:26,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 10:18:26,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:18:26,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108192116] [2023-08-27 10:18:26,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108192116] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:18:26,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:18:26,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 10:18:26,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417491483] [2023-08-27 10:18:26,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:18:26,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 10:18:26,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:18:26,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 10:18:26,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 10:18:26,817 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 150 [2023-08-27 10:18:26,819 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 19 transitions, 44 flow. Second operand has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:18:26,819 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:18:26,819 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 150 [2023-08-27 10:18:26,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:18:26,892 INFO L124 PetriNetUnfolderBase]: 40/99 cut-off events. [2023-08-27 10:18:26,892 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-27 10:18:26,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 207 conditions, 99 events. 40/99 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 364 event pairs, 23 based on Foata normal form. 4/73 useless extension candidates. Maximal degree in co-relation 197. Up to 85 conditions per place. [2023-08-27 10:18:26,894 INFO L140 encePairwiseOnDemand]: 141/150 looper letters, 19 selfloop transitions, 3 changer transitions 0/24 dead transitions. [2023-08-27 10:18:26,894 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 24 transitions, 101 flow [2023-08-27 10:18:26,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 10:18:26,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 10:18:26,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 215 transitions. [2023-08-27 10:18:26,906 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4777777777777778 [2023-08-27 10:18:26,907 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 215 transitions. [2023-08-27 10:18:26,907 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 215 transitions. [2023-08-27 10:18:26,908 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:18:26,910 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 215 transitions. [2023-08-27 10:18:26,913 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) [2023-08-27 10:18:26,917 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:18:26,917 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:18:26,919 INFO L175 Difference]: Start difference. First operand has 25 places, 19 transitions, 44 flow. Second operand 3 states and 215 transitions. [2023-08-27 10:18:26,919 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 24 transitions, 101 flow [2023-08-27 10:18:26,921 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 24 transitions, 98 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 10:18:26,922 INFO L231 Difference]: Finished difference. Result has 26 places, 20 transitions, 67 flow [2023-08-27 10:18:26,924 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=67, PETRI_PLACES=26, PETRI_TRANSITIONS=20} [2023-08-27 10:18:26,950 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 1 predicate places. [2023-08-27 10:18:26,950 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 20 transitions, 67 flow [2023-08-27 10:18:26,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:18:26,951 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:18:26,951 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 10:18:26,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 10:18:26,952 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-08-27 10:18:26,957 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:18:26,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1016073038, now seen corresponding path program 1 times [2023-08-27 10:18:26,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:18:26,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844657867] [2023-08-27 10:18:26,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:18:26,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:18:26,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:18:27,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 10:18:27,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:18:27,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844657867] [2023-08-27 10:18:27,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844657867] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:18:27,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:18:27,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 10:18:27,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892537405] [2023-08-27 10:18:27,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:18:27,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 10:18:27,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:18:27,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 10:18:27,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-27 10:18:27,057 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 150 [2023-08-27 10:18:27,058 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 20 transitions, 67 flow. Second operand has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:18:27,058 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:18:27,058 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 150 [2023-08-27 10:18:27,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:18:27,107 INFO L124 PetriNetUnfolderBase]: 32/81 cut-off events. [2023-08-27 10:18:27,107 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2023-08-27 10:18:27,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 211 conditions, 81 events. 32/81 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 248 event pairs, 15 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 200. Up to 66 conditions per place. [2023-08-27 10:18:27,109 INFO L140 encePairwiseOnDemand]: 145/150 looper letters, 17 selfloop transitions, 3 changer transitions 0/22 dead transitions. [2023-08-27 10:18:27,109 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 22 transitions, 109 flow [2023-08-27 10:18:27,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 10:18:27,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 10:18:27,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 270 transitions. [2023-08-27 10:18:27,111 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45 [2023-08-27 10:18:27,111 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 270 transitions. [2023-08-27 10:18:27,112 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 270 transitions. [2023-08-27 10:18:27,112 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:18:27,112 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 270 transitions. [2023-08-27 10:18:27,113 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 67.5) internal successors, (270), 4 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:18:27,115 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 150.0) internal successors, (750), 5 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:18:27,115 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 150.0) internal successors, (750), 5 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:18:27,115 INFO L175 Difference]: Start difference. First operand has 26 places, 20 transitions, 67 flow. Second operand 4 states and 270 transitions. [2023-08-27 10:18:27,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 22 transitions, 109 flow [2023-08-27 10:18:27,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 22 transitions, 106 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 10:18:27,117 INFO L231 Difference]: Finished difference. Result has 26 places, 18 transitions, 62 flow [2023-08-27 10:18:27,117 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=62, PETRI_PLACES=26, PETRI_TRANSITIONS=18} [2023-08-27 10:18:27,118 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 1 predicate places. [2023-08-27 10:18:27,118 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 18 transitions, 62 flow [2023-08-27 10:18:27,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:18:27,118 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:18:27,118 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 10:18:27,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-27 10:18:27,119 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-08-27 10:18:27,119 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:18:27,119 INFO L85 PathProgramCache]: Analyzing trace with hash -582419677, now seen corresponding path program 1 times [2023-08-27 10:18:27,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:18:27,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147501479] [2023-08-27 10:18:27,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:18:27,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:18:27,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:18:27,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 10:18:27,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:18:27,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147501479] [2023-08-27 10:18:27,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147501479] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:18:27,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:18:27,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 10:18:27,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128234970] [2023-08-27 10:18:27,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:18:27,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 10:18:27,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:18:27,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 10:18:27,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-27 10:18:27,256 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 150 [2023-08-27 10:18:27,256 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 18 transitions, 62 flow. Second operand has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:18:27,256 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:18:27,257 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 150 [2023-08-27 10:18:27,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:18:27,298 INFO L124 PetriNetUnfolderBase]: 8/31 cut-off events. [2023-08-27 10:18:27,298 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2023-08-27 10:18:27,298 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 31 events. 8/31 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 46 event pairs, 3 based on Foata normal form. 4/33 useless extension candidates. Maximal degree in co-relation 76. Up to 12 conditions per place. [2023-08-27 10:18:27,299 INFO L140 encePairwiseOnDemand]: 144/150 looper letters, 12 selfloop transitions, 5 changer transitions 1/20 dead transitions. [2023-08-27 10:18:27,299 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 20 transitions, 100 flow [2023-08-27 10:18:27,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 10:18:27,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 10:18:27,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 269 transitions. [2023-08-27 10:18:27,305 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4483333333333333 [2023-08-27 10:18:27,305 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 269 transitions. [2023-08-27 10:18:27,305 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 269 transitions. [2023-08-27 10:18:27,305 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:18:27,305 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 269 transitions. [2023-08-27 10:18:27,307 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) [2023-08-27 10:18:27,308 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 150.0) internal successors, (750), 5 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:18:27,309 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 150.0) internal successors, (750), 5 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:18:27,309 INFO L175 Difference]: Start difference. First operand has 26 places, 18 transitions, 62 flow. Second operand 4 states and 269 transitions. [2023-08-27 10:18:27,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 20 transitions, 100 flow [2023-08-27 10:18:27,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 20 transitions, 96 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 10:18:27,310 INFO L231 Difference]: Finished difference. Result has 26 places, 15 transitions, 64 flow [2023-08-27 10:18:27,310 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=64, PETRI_PLACES=26, PETRI_TRANSITIONS=15} [2023-08-27 10:18:27,311 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 1 predicate places. [2023-08-27 10:18:27,311 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 15 transitions, 64 flow [2023-08-27 10:18:27,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:18:27,311 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:18:27,312 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 10:18:27,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-27 10:18:27,312 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-08-27 10:18:27,312 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:18:27,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1099601544, now seen corresponding path program 1 times [2023-08-27 10:18:27,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:18:27,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406056808] [2023-08-27 10:18:27,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:18:27,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:18:27,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:18:27,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 10:18:27,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:18:27,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406056808] [2023-08-27 10:18:27,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406056808] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:18:27,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:18:27,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 10:18:27,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18249806] [2023-08-27 10:18:27,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:18:27,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 10:18:27,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:18:27,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 10:18:27,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-27 10:18:27,524 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 150 [2023-08-27 10:18:27,525 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 15 transitions, 64 flow. Second operand has 5 states, 5 states have (on average 61.4) internal successors, (307), 5 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:18:27,525 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:18:27,525 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 150 [2023-08-27 10:18:27,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:18:27,583 INFO L124 PetriNetUnfolderBase]: 10/44 cut-off events. [2023-08-27 10:18:27,583 INFO L125 PetriNetUnfolderBase]: For 52/52 co-relation queries the response was YES. [2023-08-27 10:18:27,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 44 events. 10/44 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 102 event pairs, 0 based on Foata normal form. 1/45 useless extension candidates. Maximal degree in co-relation 127. Up to 23 conditions per place. [2023-08-27 10:18:27,584 INFO L140 encePairwiseOnDemand]: 146/150 looper letters, 14 selfloop transitions, 1 changer transitions 10/26 dead transitions. [2023-08-27 10:18:27,584 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 26 transitions, 170 flow [2023-08-27 10:18:27,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-27 10:18:27,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-27 10:18:27,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 317 transitions. [2023-08-27 10:18:27,586 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4226666666666667 [2023-08-27 10:18:27,586 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 317 transitions. [2023-08-27 10:18:27,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 317 transitions. [2023-08-27 10:18:27,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:18:27,587 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 317 transitions. [2023-08-27 10:18:27,588 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 63.4) internal successors, (317), 5 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:18:27,589 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 150.0) internal successors, (900), 6 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:18:27,590 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 150.0) internal successors, (900), 6 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:18:27,590 INFO L175 Difference]: Start difference. First operand has 26 places, 15 transitions, 64 flow. Second operand 5 states and 317 transitions. [2023-08-27 10:18:27,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 26 transitions, 170 flow [2023-08-27 10:18:27,591 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 26 transitions, 151 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-08-27 10:18:27,592 INFO L231 Difference]: Finished difference. Result has 30 places, 15 transitions, 63 flow [2023-08-27 10:18:27,592 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=63, PETRI_PLACES=30, PETRI_TRANSITIONS=15} [2023-08-27 10:18:27,592 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 5 predicate places. [2023-08-27 10:18:27,592 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 15 transitions, 63 flow [2023-08-27 10:18:27,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 61.4) internal successors, (307), 5 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:18:27,593 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:18:27,593 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 10:18:27,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-27 10:18:27,593 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-08-27 10:18:27,594 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:18:27,594 INFO L85 PathProgramCache]: Analyzing trace with hash 159871164, now seen corresponding path program 2 times [2023-08-27 10:18:27,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:18:27,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015879558] [2023-08-27 10:18:27,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:18:27,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:18:27,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:18:27,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 10:18:27,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:18:27,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015879558] [2023-08-27 10:18:27,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015879558] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:18:27,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:18:27,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 10:18:27,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560401318] [2023-08-27 10:18:27,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:18:27,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-27 10:18:27,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:18:27,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-27 10:18:27,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-27 10:18:27,803 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 150 [2023-08-27 10:18:27,803 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 15 transitions, 63 flow. Second operand has 6 states, 6 states have (on average 59.166666666666664) internal successors, (355), 6 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:18:27,803 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:18:27,804 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 150 [2023-08-27 10:18:27,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:18:27,856 INFO L124 PetriNetUnfolderBase]: 11/40 cut-off events. [2023-08-27 10:18:27,857 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-08-27 10:18:27,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 40 events. 11/40 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 80 event pairs, 4 based on Foata normal form. 1/41 useless extension candidates. Maximal degree in co-relation 130. Up to 19 conditions per place. [2023-08-27 10:18:27,857 INFO L140 encePairwiseOnDemand]: 145/150 looper letters, 0 selfloop transitions, 0 changer transitions 19/19 dead transitions. [2023-08-27 10:18:27,857 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 19 transitions, 119 flow [2023-08-27 10:18:27,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-27 10:18:27,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-27 10:18:27,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 303 transitions. [2023-08-27 10:18:27,859 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.404 [2023-08-27 10:18:27,859 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 303 transitions. [2023-08-27 10:18:27,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 303 transitions. [2023-08-27 10:18:27,859 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:18:27,859 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 303 transitions. [2023-08-27 10:18:27,860 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) [2023-08-27 10:18:27,861 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 150.0) internal successors, (900), 6 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:18:27,862 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 150.0) internal successors, (900), 6 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:18:27,862 INFO L175 Difference]: Start difference. First operand has 30 places, 15 transitions, 63 flow. Second operand 5 states and 303 transitions. [2023-08-27 10:18:27,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 19 transitions, 119 flow [2023-08-27 10:18:27,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 19 transitions, 116 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-27 10:18:27,863 INFO L231 Difference]: Finished difference. Result has 29 places, 0 transitions, 0 flow [2023-08-27 10:18:27,863 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=25, 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=29, PETRI_TRANSITIONS=0} [2023-08-27 10:18:27,864 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 4 predicate places. [2023-08-27 10:18:27,864 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 0 transitions, 0 flow [2023-08-27 10:18:27,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 59.166666666666664) internal successors, (355), 6 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 10:18:27,866 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 11 remaining) [2023-08-27 10:18:27,867 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 11 remaining) [2023-08-27 10:18:27,867 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 11 remaining) [2023-08-27 10:18:27,867 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 11 remaining) [2023-08-27 10:18:27,867 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (6 of 11 remaining) [2023-08-27 10:18:27,867 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 11 remaining) [2023-08-27 10:18:27,868 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 11 remaining) [2023-08-27 10:18:27,868 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 11 remaining) [2023-08-27 10:18:27,868 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 11 remaining) [2023-08-27 10:18:27,868 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 11 remaining) [2023-08-27 10:18:27,868 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 11 remaining) [2023-08-27 10:18:27,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-27 10:18:27,869 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2023-08-27 10:18:27,873 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 10:18:27,873 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 10:18:27,876 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 10:18:27 BasicIcfg [2023-08-27 10:18:27,876 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 10:18:27,876 INFO L158 Benchmark]: Toolchain (without parser) took 4556.86ms. Allocated memory was 364.9MB in the beginning and 476.1MB in the end (delta: 111.1MB). Free memory was 339.2MB in the beginning and 343.3MB in the end (delta: -4.0MB). Peak memory consumption was 109.0MB. Max. memory is 16.0GB. [2023-08-27 10:18:27,877 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 364.9MB. Free memory was 342.0MB in the beginning and 341.9MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 10:18:27,877 INFO L158 Benchmark]: CACSL2BoogieTranslator took 481.83ms. Allocated memory is still 364.9MB. Free memory was 339.2MB in the beginning and 319.6MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-27 10:18:27,878 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.62ms. Allocated memory is still 364.9MB. Free memory was 319.6MB in the beginning and 317.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 10:18:27,878 INFO L158 Benchmark]: Boogie Preprocessor took 20.70ms. Allocated memory is still 364.9MB. Free memory was 317.4MB in the beginning and 316.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 10:18:27,878 INFO L158 Benchmark]: RCFGBuilder took 448.53ms. Allocated memory is still 364.9MB. Free memory was 316.2MB in the beginning and 301.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-08-27 10:18:27,879 INFO L158 Benchmark]: TraceAbstraction took 3553.78ms. Allocated memory was 364.9MB in the beginning and 476.1MB in the end (delta: 111.1MB). Free memory was 300.7MB in the beginning and 343.3MB in the end (delta: -42.6MB). Peak memory consumption was 71.2MB. Max. memory is 16.0GB. [2023-08-27 10:18:27,881 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 364.9MB. Free memory was 342.0MB in the beginning and 341.9MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 481.83ms. Allocated memory is still 364.9MB. Free memory was 339.2MB in the beginning and 319.6MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 41.62ms. Allocated memory is still 364.9MB. Free memory was 319.6MB in the beginning and 317.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 20.70ms. Allocated memory is still 364.9MB. Free memory was 317.4MB in the beginning and 316.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 448.53ms. Allocated memory is still 364.9MB. Free memory was 316.2MB in the beginning and 301.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 3553.78ms. Allocated memory was 364.9MB in the beginning and 476.1MB in the end (delta: 111.1MB). Free memory was 300.7MB in the beginning and 343.3MB in the end (delta: -42.6MB). Peak memory consumption was 71.2MB. 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: 2.0s, 78 PlacesBefore, 25 PlacesAfterwards, 74 TransitionsBefore, 19 TransitionsAfterwards, 1200 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 2 ChoiceCompositions, 74 TotalNumberOfCompositions, 3363 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2222, independent: 2097, independent conditional: 0, independent unconditional: 2097, dependent: 125, dependent conditional: 0, dependent unconditional: 125, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 672, independent: 647, independent conditional: 0, independent unconditional: 647, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2222, independent: 1450, independent conditional: 0, independent unconditional: 1450, dependent: 100, dependent conditional: 0, dependent unconditional: 100, unknown: 672, unknown conditional: 0, unknown unconditional: 672] , Statistics on independence cache: Total cache size (in pairs): 75, Positive cache size: 66, Positive conditional cache size: 0, Positive unconditional cache size: 66, 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, 94 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: 3.4s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 41 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 41 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 185 IncrementalHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 5 mSDtfsCounter, 185 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=67occurred in iteration=1, InterpolantAutomatonStates: 21, 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, 0.6s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 46 ConstructedInterpolants, 0 QuantifiedInterpolants, 186 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-27 10:18:27,901 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...