/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 INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/rfi000_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-24 05:32:15,452 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-24 05:32:15,515 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 [2023-08-24 05:32:15,523 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-24 05:32:15,523 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-24 05:32:15,547 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-24 05:32:15,548 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-24 05:32:15,548 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-24 05:32:15,549 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-24 05:32:15,549 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-24 05:32:15,549 INFO L153 SettingsManager]: * Use SBE=true [2023-08-24 05:32:15,550 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-24 05:32:15,550 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-24 05:32:15,550 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-24 05:32:15,550 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-24 05:32:15,551 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-24 05:32:15,551 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-24 05:32:15,551 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-24 05:32:15,552 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-24 05:32:15,552 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-24 05:32:15,552 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-24 05:32:15,556 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-24 05:32:15,556 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-24 05:32:15,557 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-24 05:32:15,560 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-24 05:32:15,560 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-24 05:32:15,560 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-24 05:32:15,560 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 05:32:15,561 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-24 05:32:15,561 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-24 05:32:15,562 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-24 05:32:15,562 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-24 05:32:15,562 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-24 05:32:15,562 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-24 05:32:15,562 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-24 05:32:15,563 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST [2023-08-24 05:32:15,886 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-24 05:32:15,902 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-24 05:32:15,904 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-24 05:32:15,905 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-24 05:32:15,906 INFO L274 PluginConnector]: CDTParser initialized [2023-08-24 05:32:15,907 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/rfi000_tso.i [2023-08-24 05:32:17,194 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-24 05:32:17,441 INFO L384 CDTParser]: Found 1 translation units. [2023-08-24 05:32:17,442 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi000_tso.i [2023-08-24 05:32:17,461 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d86ceee40/20ad56b5e11f4ab0bab8c21bfdf694a4/FLAG7b39d229f [2023-08-24 05:32:17,478 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d86ceee40/20ad56b5e11f4ab0bab8c21bfdf694a4 [2023-08-24 05:32:17,480 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-24 05:32:17,481 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-24 05:32:17,484 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-24 05:32:17,485 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-24 05:32:17,487 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-24 05:32:17,488 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 05:32:17" (1/1) ... [2023-08-24 05:32:17,488 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b07a902 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 05:32:17, skipping insertion in model container [2023-08-24 05:32:17,489 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 05:32:17" (1/1) ... [2023-08-24 05:32:17,538 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-24 05:32:17,663 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi000_tso.i[944,957] [2023-08-24 05:32:17,865 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 05:32:17,878 INFO L201 MainTranslator]: Completed pre-run [2023-08-24 05:32:17,891 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi000_tso.i[944,957] [2023-08-24 05:32:17,907 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-24 05:32:17,909 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-24 05:32:17,950 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 05:32:17,990 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-24 05:32:17,990 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-24 05:32:17,997 INFO L206 MainTranslator]: Completed translation [2023-08-24 05:32:17,997 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 05:32:17 WrapperNode [2023-08-24 05:32:17,997 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-24 05:32:17,998 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-24 05:32:17,999 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-24 05:32:17,999 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-24 05:32:18,005 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 05:32:17" (1/1) ... [2023-08-24 05:32:18,056 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 05:32:17" (1/1) ... [2023-08-24 05:32:18,080 INFO L138 Inliner]: procedures = 175, calls = 45, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 170 [2023-08-24 05:32:18,081 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-24 05:32:18,082 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-24 05:32:18,082 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-24 05:32:18,082 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-24 05:32:18,089 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 05:32:17" (1/1) ... [2023-08-24 05:32:18,090 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 05:32:17" (1/1) ... [2023-08-24 05:32:18,092 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 05:32:17" (1/1) ... [2023-08-24 05:32:18,092 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 05:32:17" (1/1) ... [2023-08-24 05:32:18,100 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 05:32:17" (1/1) ... [2023-08-24 05:32:18,101 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 05:32:17" (1/1) ... [2023-08-24 05:32:18,104 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 05:32:17" (1/1) ... [2023-08-24 05:32:18,105 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 05:32:17" (1/1) ... [2023-08-24 05:32:18,108 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-24 05:32:18,109 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-24 05:32:18,109 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-24 05:32:18,109 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-24 05:32:18,110 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 05:32:17" (1/1) ... [2023-08-24 05:32:18,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 05:32:18,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-24 05:32:18,138 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) [2023-08-24 05:32:18,165 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 [2023-08-24 05:32:18,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-24 05:32:18,178 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-24 05:32:18,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-24 05:32:18,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-24 05:32:18,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-24 05:32:18,178 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-24 05:32:18,178 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-24 05:32:18,178 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-24 05:32:18,179 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-24 05:32:18,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-24 05:32:18,179 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-24 05:32:18,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-24 05:32:18,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-24 05:32:18,182 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-24 05:32:18,330 INFO L236 CfgBuilder]: Building ICFG [2023-08-24 05:32:18,331 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-24 05:32:18,615 INFO L277 CfgBuilder]: Performing block encoding [2023-08-24 05:32:18,775 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-24 05:32:18,775 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-24 05:32:18,782 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 05:32:18 BoogieIcfgContainer [2023-08-24 05:32:18,782 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-24 05:32:18,785 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-24 05:32:18,785 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-24 05:32:18,788 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-24 05:32:18,788 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.08 05:32:17" (1/3) ... [2023-08-24 05:32:18,789 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@688b4cc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 05:32:18, skipping insertion in model container [2023-08-24 05:32:18,789 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 05:32:17" (2/3) ... [2023-08-24 05:32:18,789 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@688b4cc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 05:32:18, skipping insertion in model container [2023-08-24 05:32:18,789 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 05:32:18" (3/3) ... [2023-08-24 05:32:18,790 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi000_tso.i [2023-08-24 05:32:18,805 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-24 05:32:18,806 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-08-24 05:32:18,806 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-24 05:32:18,858 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 05:32:18,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 90 transitions, 190 flow [2023-08-24 05:32:18,975 INFO L124 PetriNetUnfolderBase]: 2/88 cut-off events. [2023-08-24 05:32:18,975 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 05:32:18,979 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 88 events. 2/88 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 53. Up to 2 conditions per place. [2023-08-24 05:32:18,980 INFO L82 GeneralOperation]: Start removeDead. Operand has 95 places, 90 transitions, 190 flow [2023-08-24 05:32:18,984 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 93 places, 88 transitions, 182 flow [2023-08-24 05:32:18,987 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 05:32:19,006 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 88 transitions, 182 flow [2023-08-24 05:32:19,010 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 93 places, 88 transitions, 182 flow [2023-08-24 05:32:19,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 88 transitions, 182 flow [2023-08-24 05:32:19,044 INFO L124 PetriNetUnfolderBase]: 2/88 cut-off events. [2023-08-24 05:32:19,044 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 05:32:19,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 88 events. 2/88 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 53. Up to 2 conditions per place. [2023-08-24 05:32:19,046 INFO L119 LiptonReduction]: Number of co-enabled transitions 1156 [2023-08-24 05:32:22,014 INFO L134 LiptonReduction]: Checked pairs total: 3494 [2023-08-24 05:32:22,015 INFO L136 LiptonReduction]: Total number of compositions: 76 [2023-08-24 05:32:22,026 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-24 05:32:22,032 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;@ff993af, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 05:32:22,032 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-08-24 05:32:22,035 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 05:32:22,035 INFO L124 PetriNetUnfolderBase]: 1/11 cut-off events. [2023-08-24 05:32:22,036 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 05:32:22,036 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:32:22,036 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-24 05:32:22,037 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-24 05:32:22,041 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:32:22,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1153820224, now seen corresponding path program 1 times [2023-08-24 05:32:22,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:32:22,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39153335] [2023-08-24 05:32:22,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:32:22,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:32:22,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 05:32:22,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 05:32:22,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 05:32:22,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39153335] [2023-08-24 05:32:22,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39153335] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 05:32:22,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 05:32:22,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-24 05:32:22,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213927234] [2023-08-24 05:32:22,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 05:32:22,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 05:32:22,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 05:32:22,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 05:32:22,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 05:32:22,494 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 166 [2023-08-24 05:32:22,496 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 22 transitions, 50 flow. Second operand has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 05:32:22,496 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 05:32:22,496 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 166 [2023-08-24 05:32:22,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 05:32:22,687 INFO L124 PetriNetUnfolderBase]: 294/501 cut-off events. [2023-08-24 05:32:22,688 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-24 05:32:22,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1014 conditions, 501 events. 294/501 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2036 event pairs, 69 based on Foata normal form. 28/472 useless extension candidates. Maximal degree in co-relation 1004. Up to 366 conditions per place. [2023-08-24 05:32:22,696 INFO L140 encePairwiseOnDemand]: 162/166 looper letters, 22 selfloop transitions, 2 changer transitions 4/29 dead transitions. [2023-08-24 05:32:22,696 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 29 transitions, 120 flow [2023-08-24 05:32:22,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 05:32:22,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 05:32:22,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 259 transitions. [2023-08-24 05:32:22,715 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5200803212851406 [2023-08-24 05:32:22,716 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 259 transitions. [2023-08-24 05:32:22,717 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 259 transitions. [2023-08-24 05:32:22,720 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 05:32:22,723 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 259 transitions. [2023-08-24 05:32:22,726 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 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) [2023-08-24 05:32:22,730 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 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) [2023-08-24 05:32:22,731 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 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) [2023-08-24 05:32:22,733 INFO L175 Difference]: Start difference. First operand has 28 places, 22 transitions, 50 flow. Second operand 3 states and 259 transitions. [2023-08-24 05:32:22,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 29 transitions, 120 flow [2023-08-24 05:32:22,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 29 transitions, 118 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-24 05:32:22,737 INFO L231 Difference]: Finished difference. Result has 27 places, 18 transitions, 44 flow [2023-08-24 05:32:22,738 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=44, PETRI_PLACES=27, PETRI_TRANSITIONS=18} [2023-08-24 05:32:22,742 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -1 predicate places. [2023-08-24 05:32:22,742 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 18 transitions, 44 flow [2023-08-24 05:32:22,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 05:32:22,743 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:32:22,744 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:32:22,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-24 05:32:22,744 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-24 05:32:22,752 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:32:22,752 INFO L85 PathProgramCache]: Analyzing trace with hash 721288587, now seen corresponding path program 1 times [2023-08-24 05:32:22,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:32:22,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894675593] [2023-08-24 05:32:22,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:32:22,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:32:22,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 05:32:23,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 05:32:23,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 05:32:23,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894675593] [2023-08-24 05:32:23,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894675593] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 05:32:23,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 05:32:23,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-24 05:32:23,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214018461] [2023-08-24 05:32:23,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 05:32:23,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-24 05:32:23,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 05:32:23,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-24 05:32:23,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-24 05:32:23,600 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 166 [2023-08-24 05:32:23,601 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 18 transitions, 44 flow. Second operand has 5 states, 5 states have (on average 63.6) internal successors, (318), 5 states have internal predecessors, (318), 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) [2023-08-24 05:32:23,601 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 05:32:23,601 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 166 [2023-08-24 05:32:23,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 05:32:23,915 INFO L124 PetriNetUnfolderBase]: 282/497 cut-off events. [2023-08-24 05:32:23,915 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2023-08-24 05:32:23,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1030 conditions, 497 events. 282/497 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1900 event pairs, 90 based on Foata normal form. 39/536 useless extension candidates. Maximal degree in co-relation 1020. Up to 265 conditions per place. [2023-08-24 05:32:23,918 INFO L140 encePairwiseOnDemand]: 157/166 looper letters, 24 selfloop transitions, 7 changer transitions 20/51 dead transitions. [2023-08-24 05:32:23,918 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 51 transitions, 214 flow [2023-08-24 05:32:23,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-24 05:32:23,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-24 05:32:23,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 488 transitions. [2023-08-24 05:32:23,921 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4199655765920826 [2023-08-24 05:32:23,921 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 488 transitions. [2023-08-24 05:32:23,921 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 488 transitions. [2023-08-24 05:32:23,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 05:32:23,922 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 488 transitions. [2023-08-24 05:32:23,923 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 69.71428571428571) internal successors, (488), 7 states have internal predecessors, (488), 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) [2023-08-24 05:32:23,925 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 166.0) internal successors, (1328), 8 states have internal predecessors, (1328), 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) [2023-08-24 05:32:23,926 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 166.0) internal successors, (1328), 8 states have internal predecessors, (1328), 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) [2023-08-24 05:32:23,926 INFO L175 Difference]: Start difference. First operand has 27 places, 18 transitions, 44 flow. Second operand 7 states and 488 transitions. [2023-08-24 05:32:23,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 51 transitions, 214 flow [2023-08-24 05:32:23,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 51 transitions, 208 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-24 05:32:23,928 INFO L231 Difference]: Finished difference. Result has 35 places, 23 transitions, 106 flow [2023-08-24 05:32:23,928 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=106, PETRI_PLACES=35, PETRI_TRANSITIONS=23} [2023-08-24 05:32:23,929 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 7 predicate places. [2023-08-24 05:32:23,929 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 23 transitions, 106 flow [2023-08-24 05:32:23,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 63.6) internal successors, (318), 5 states have internal predecessors, (318), 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) [2023-08-24 05:32:23,930 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:32:23,930 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:32:23,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-24 05:32:23,930 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-24 05:32:23,931 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:32:23,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1791834191, now seen corresponding path program 1 times [2023-08-24 05:32:23,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:32:23,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106228178] [2023-08-24 05:32:23,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:32:23,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:32:23,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 05:32:24,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 05:32:24,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 05:32:24,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106228178] [2023-08-24 05:32:24,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106228178] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 05:32:24,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 05:32:24,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-24 05:32:24,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361240174] [2023-08-24 05:32:24,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 05:32:24,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-24 05:32:24,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 05:32:24,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-24 05:32:24,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-24 05:32:24,535 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 166 [2023-08-24 05:32:24,536 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 23 transitions, 106 flow. Second operand has 5 states, 5 states have (on average 64.2) internal successors, (321), 5 states have internal predecessors, (321), 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) [2023-08-24 05:32:24,536 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 05:32:24,536 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 166 [2023-08-24 05:32:24,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 05:32:24,780 INFO L124 PetriNetUnfolderBase]: 235/423 cut-off events. [2023-08-24 05:32:24,780 INFO L125 PetriNetUnfolderBase]: For 382/382 co-relation queries the response was YES. [2023-08-24 05:32:24,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1331 conditions, 423 events. 235/423 cut-off events. For 382/382 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1554 event pairs, 100 based on Foata normal form. 24/447 useless extension candidates. Maximal degree in co-relation 1315. Up to 197 conditions per place. [2023-08-24 05:32:24,783 INFO L140 encePairwiseOnDemand]: 158/166 looper letters, 27 selfloop transitions, 7 changer transitions 17/51 dead transitions. [2023-08-24 05:32:24,784 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 51 transitions, 332 flow [2023-08-24 05:32:24,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-24 05:32:24,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-24 05:32:24,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 482 transitions. [2023-08-24 05:32:24,785 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41480206540447506 [2023-08-24 05:32:24,786 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 482 transitions. [2023-08-24 05:32:24,786 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 482 transitions. [2023-08-24 05:32:24,786 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 05:32:24,786 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 482 transitions. [2023-08-24 05:32:24,787 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 68.85714285714286) internal successors, (482), 7 states have internal predecessors, (482), 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) [2023-08-24 05:32:24,789 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 166.0) internal successors, (1328), 8 states have internal predecessors, (1328), 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) [2023-08-24 05:32:24,790 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 166.0) internal successors, (1328), 8 states have internal predecessors, (1328), 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) [2023-08-24 05:32:24,790 INFO L175 Difference]: Start difference. First operand has 35 places, 23 transitions, 106 flow. Second operand 7 states and 482 transitions. [2023-08-24 05:32:24,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 51 transitions, 332 flow [2023-08-24 05:32:24,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 51 transitions, 322 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-08-24 05:32:24,794 INFO L231 Difference]: Finished difference. Result has 42 places, 26 transitions, 164 flow [2023-08-24 05:32:24,794 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=164, PETRI_PLACES=42, PETRI_TRANSITIONS=26} [2023-08-24 05:32:24,794 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 14 predicate places. [2023-08-24 05:32:24,795 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 26 transitions, 164 flow [2023-08-24 05:32:24,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 64.2) internal successors, (321), 5 states have internal predecessors, (321), 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) [2023-08-24 05:32:24,795 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:32:24,795 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:32:24,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-24 05:32:24,796 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-24 05:32:24,796 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:32:24,796 INFO L85 PathProgramCache]: Analyzing trace with hash -287748374, now seen corresponding path program 1 times [2023-08-24 05:32:24,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:32:24,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330653260] [2023-08-24 05:32:24,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:32:24,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:32:24,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 05:32:25,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 05:32:25,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 05:32:25,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330653260] [2023-08-24 05:32:25,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330653260] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 05:32:25,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 05:32:25,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-24 05:32:25,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397911735] [2023-08-24 05:32:25,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 05:32:25,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-24 05:32:25,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 05:32:25,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-24 05:32:25,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-08-24 05:32:25,495 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 166 [2023-08-24 05:32:25,496 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 26 transitions, 164 flow. Second operand has 8 states, 8 states have (on average 68.5) internal successors, (548), 8 states have internal predecessors, (548), 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) [2023-08-24 05:32:25,496 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 05:32:25,496 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 166 [2023-08-24 05:32:25,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 05:32:25,685 INFO L124 PetriNetUnfolderBase]: 204/379 cut-off events. [2023-08-24 05:32:25,685 INFO L125 PetriNetUnfolderBase]: For 681/697 co-relation queries the response was YES. [2023-08-24 05:32:25,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1334 conditions, 379 events. 204/379 cut-off events. For 681/697 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1417 event pairs, 89 based on Foata normal form. 30/406 useless extension candidates. Maximal degree in co-relation 1312. Up to 303 conditions per place. [2023-08-24 05:32:25,688 INFO L140 encePairwiseOnDemand]: 159/166 looper letters, 33 selfloop transitions, 8 changer transitions 10/54 dead transitions. [2023-08-24 05:32:25,688 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 54 transitions, 382 flow [2023-08-24 05:32:25,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-24 05:32:25,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-24 05:32:25,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 514 transitions. [2023-08-24 05:32:25,690 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4423407917383821 [2023-08-24 05:32:25,690 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 514 transitions. [2023-08-24 05:32:25,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 514 transitions. [2023-08-24 05:32:25,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 05:32:25,691 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 514 transitions. [2023-08-24 05:32:25,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 73.42857142857143) internal successors, (514), 7 states have internal predecessors, (514), 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) [2023-08-24 05:32:25,694 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 166.0) internal successors, (1328), 8 states have internal predecessors, (1328), 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) [2023-08-24 05:32:25,694 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 166.0) internal successors, (1328), 8 states have internal predecessors, (1328), 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) [2023-08-24 05:32:25,694 INFO L175 Difference]: Start difference. First operand has 42 places, 26 transitions, 164 flow. Second operand 7 states and 514 transitions. [2023-08-24 05:32:25,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 54 transitions, 382 flow [2023-08-24 05:32:25,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 54 transitions, 362 flow, removed 6 selfloop flow, removed 4 redundant places. [2023-08-24 05:32:25,700 INFO L231 Difference]: Finished difference. Result has 46 places, 33 transitions, 212 flow [2023-08-24 05:32:25,700 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=149, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=212, PETRI_PLACES=46, PETRI_TRANSITIONS=33} [2023-08-24 05:32:25,701 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 18 predicate places. [2023-08-24 05:32:25,701 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 33 transitions, 212 flow [2023-08-24 05:32:25,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 68.5) internal successors, (548), 8 states have internal predecessors, (548), 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) [2023-08-24 05:32:25,701 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:32:25,702 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:32:25,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-24 05:32:25,702 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-24 05:32:25,702 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:32:25,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1236061276, now seen corresponding path program 2 times [2023-08-24 05:32:25,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:32:25,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072155351] [2023-08-24 05:32:25,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:32:25,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:32:25,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 05:32:26,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 05:32:26,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 05:32:26,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072155351] [2023-08-24 05:32:26,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072155351] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 05:32:26,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 05:32:26,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-24 05:32:26,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215178623] [2023-08-24 05:32:26,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 05:32:26,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-24 05:32:26,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 05:32:26,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-24 05:32:26,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-08-24 05:32:26,400 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 166 [2023-08-24 05:32:26,400 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 33 transitions, 212 flow. Second operand has 8 states, 8 states have (on average 69.5) internal successors, (556), 8 states have internal predecessors, (556), 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) [2023-08-24 05:32:26,403 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 05:32:26,403 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 166 [2023-08-24 05:32:26,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 05:32:26,590 INFO L124 PetriNetUnfolderBase]: 198/370 cut-off events. [2023-08-24 05:32:26,590 INFO L125 PetriNetUnfolderBase]: For 642/657 co-relation queries the response was YES. [2023-08-24 05:32:26,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1415 conditions, 370 events. 198/370 cut-off events. For 642/657 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1388 event pairs, 92 based on Foata normal form. 29/396 useless extension candidates. Maximal degree in co-relation 1390. Up to 306 conditions per place. [2023-08-24 05:32:26,593 INFO L140 encePairwiseOnDemand]: 157/166 looper letters, 31 selfloop transitions, 18 changer transitions 8/60 dead transitions. [2023-08-24 05:32:26,593 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 60 transitions, 457 flow [2023-08-24 05:32:26,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-24 05:32:26,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-24 05:32:26,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 519 transitions. [2023-08-24 05:32:26,595 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44664371772805506 [2023-08-24 05:32:26,595 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 519 transitions. [2023-08-24 05:32:26,596 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 519 transitions. [2023-08-24 05:32:26,596 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 05:32:26,596 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 519 transitions. [2023-08-24 05:32:26,597 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 74.14285714285714) internal successors, (519), 7 states have internal predecessors, (519), 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) [2023-08-24 05:32:26,599 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 166.0) internal successors, (1328), 8 states have internal predecessors, (1328), 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) [2023-08-24 05:32:26,599 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 166.0) internal successors, (1328), 8 states have internal predecessors, (1328), 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) [2023-08-24 05:32:26,599 INFO L175 Difference]: Start difference. First operand has 46 places, 33 transitions, 212 flow. Second operand 7 states and 519 transitions. [2023-08-24 05:32:26,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 60 transitions, 457 flow [2023-08-24 05:32:26,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 60 transitions, 445 flow, removed 6 selfloop flow, removed 4 redundant places. [2023-08-24 05:32:26,605 INFO L231 Difference]: Finished difference. Result has 51 places, 45 transitions, 344 flow [2023-08-24 05:32:26,605 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=344, PETRI_PLACES=51, PETRI_TRANSITIONS=45} [2023-08-24 05:32:26,605 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 23 predicate places. [2023-08-24 05:32:26,606 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 45 transitions, 344 flow [2023-08-24 05:32:26,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 69.5) internal successors, (556), 8 states have internal predecessors, (556), 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) [2023-08-24 05:32:26,606 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:32:26,606 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:32:26,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-24 05:32:26,607 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-24 05:32:26,607 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:32:26,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1602156220, now seen corresponding path program 1 times [2023-08-24 05:32:26,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:32:26,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106290733] [2023-08-24 05:32:26,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:32:26,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:32:26,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 05:32:26,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 05:32:26,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 05:32:26,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106290733] [2023-08-24 05:32:26,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106290733] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 05:32:26,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 05:32:26,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-24 05:32:26,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80788519] [2023-08-24 05:32:26,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 05:32:26,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 05:32:26,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 05:32:26,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 05:32:26,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 05:32:26,764 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 166 [2023-08-24 05:32:26,765 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 45 transitions, 344 flow. Second operand has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 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) [2023-08-24 05:32:26,765 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 05:32:26,765 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 166 [2023-08-24 05:32:26,765 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 05:32:26,826 INFO L124 PetriNetUnfolderBase]: 61/143 cut-off events. [2023-08-24 05:32:26,826 INFO L125 PetriNetUnfolderBase]: For 323/330 co-relation queries the response was YES. [2023-08-24 05:32:26,827 INFO L83 FinitePrefix]: Finished finitePrefix Result has 622 conditions, 143 events. 61/143 cut-off events. For 323/330 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 431 event pairs, 14 based on Foata normal form. 28/169 useless extension candidates. Maximal degree in co-relation 594. Up to 90 conditions per place. [2023-08-24 05:32:26,828 INFO L140 encePairwiseOnDemand]: 162/166 looper letters, 39 selfloop transitions, 3 changer transitions 0/45 dead transitions. [2023-08-24 05:32:26,828 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 45 transitions, 400 flow [2023-08-24 05:32:26,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 05:32:26,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 05:32:26,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 248 transitions. [2023-08-24 05:32:26,829 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4979919678714859 [2023-08-24 05:32:26,829 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 248 transitions. [2023-08-24 05:32:26,829 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 248 transitions. [2023-08-24 05:32:26,830 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 05:32:26,830 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 248 transitions. [2023-08-24 05:32:26,830 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 05:32:26,831 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 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) [2023-08-24 05:32:26,831 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 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) [2023-08-24 05:32:26,831 INFO L175 Difference]: Start difference. First operand has 51 places, 45 transitions, 344 flow. Second operand 3 states and 248 transitions. [2023-08-24 05:32:26,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 45 transitions, 400 flow [2023-08-24 05:32:26,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 45 transitions, 363 flow, removed 9 selfloop flow, removed 6 redundant places. [2023-08-24 05:32:26,835 INFO L231 Difference]: Finished difference. Result has 47 places, 35 transitions, 235 flow [2023-08-24 05:32:26,835 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=235, PETRI_PLACES=47, PETRI_TRANSITIONS=35} [2023-08-24 05:32:26,835 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 19 predicate places. [2023-08-24 05:32:26,836 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 35 transitions, 235 flow [2023-08-24 05:32:26,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 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) [2023-08-24 05:32:26,836 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:32:26,836 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:32:26,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-24 05:32:26,836 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-24 05:32:26,837 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:32:26,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1380231508, now seen corresponding path program 1 times [2023-08-24 05:32:26,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:32:26,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819505245] [2023-08-24 05:32:26,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:32:26,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:32:26,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 05:32:27,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 05:32:27,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 05:32:27,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819505245] [2023-08-24 05:32:27,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819505245] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 05:32:27,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 05:32:27,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-24 05:32:27,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596797848] [2023-08-24 05:32:27,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 05:32:27,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-24 05:32:27,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 05:32:27,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-24 05:32:27,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-08-24 05:32:27,585 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 166 [2023-08-24 05:32:27,586 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 35 transitions, 235 flow. Second operand has 8 states, 8 states have (on average 68.875) internal successors, (551), 8 states have internal predecessors, (551), 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) [2023-08-24 05:32:27,586 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 05:32:27,586 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 166 [2023-08-24 05:32:27,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 05:32:27,799 INFO L124 PetriNetUnfolderBase]: 91/216 cut-off events. [2023-08-24 05:32:27,799 INFO L125 PetriNetUnfolderBase]: For 472/482 co-relation queries the response was YES. [2023-08-24 05:32:27,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 973 conditions, 216 events. 91/216 cut-off events. For 472/482 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 829 event pairs, 20 based on Foata normal form. 15/229 useless extension candidates. Maximal degree in co-relation 947. Up to 97 conditions per place. [2023-08-24 05:32:27,801 INFO L140 encePairwiseOnDemand]: 156/166 looper letters, 36 selfloop transitions, 21 changer transitions 13/73 dead transitions. [2023-08-24 05:32:27,801 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 73 transitions, 639 flow [2023-08-24 05:32:27,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-24 05:32:27,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-24 05:32:27,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 587 transitions. [2023-08-24 05:32:27,803 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4420180722891566 [2023-08-24 05:32:27,803 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 587 transitions. [2023-08-24 05:32:27,803 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 587 transitions. [2023-08-24 05:32:27,804 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 05:32:27,804 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 587 transitions. [2023-08-24 05:32:27,805 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 73.375) internal successors, (587), 8 states have internal predecessors, (587), 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) [2023-08-24 05:32:27,807 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 166.0) internal successors, (1494), 9 states have internal predecessors, (1494), 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) [2023-08-24 05:32:27,807 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 166.0) internal successors, (1494), 9 states have internal predecessors, (1494), 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) [2023-08-24 05:32:27,807 INFO L175 Difference]: Start difference. First operand has 47 places, 35 transitions, 235 flow. Second operand 8 states and 587 transitions. [2023-08-24 05:32:27,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 73 transitions, 639 flow [2023-08-24 05:32:27,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 73 transitions, 630 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-24 05:32:27,811 INFO L231 Difference]: Finished difference. Result has 58 places, 48 transitions, 438 flow [2023-08-24 05:32:27,811 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=438, PETRI_PLACES=58, PETRI_TRANSITIONS=48} [2023-08-24 05:32:27,812 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 30 predicate places. [2023-08-24 05:32:27,812 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 48 transitions, 438 flow [2023-08-24 05:32:27,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 68.875) internal successors, (551), 8 states have internal predecessors, (551), 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) [2023-08-24 05:32:27,812 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:32:27,812 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:32:27,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-24 05:32:27,813 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-24 05:32:27,813 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:32:27,813 INFO L85 PathProgramCache]: Analyzing trace with hash -894084250, now seen corresponding path program 2 times [2023-08-24 05:32:27,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:32:27,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769918457] [2023-08-24 05:32:27,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:32:27,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:32:27,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 05:32:28,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 05:32:28,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 05:32:28,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769918457] [2023-08-24 05:32:28,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769918457] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 05:32:28,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 05:32:28,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-24 05:32:28,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870506537] [2023-08-24 05:32:28,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 05:32:28,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-24 05:32:28,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 05:32:28,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-24 05:32:28,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-08-24 05:32:28,977 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 166 [2023-08-24 05:32:28,978 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 48 transitions, 438 flow. Second operand has 9 states, 9 states have (on average 67.66666666666667) internal successors, (609), 9 states have internal predecessors, (609), 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) [2023-08-24 05:32:28,978 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 05:32:28,978 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 166 [2023-08-24 05:32:28,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 05:32:29,581 INFO L124 PetriNetUnfolderBase]: 116/289 cut-off events. [2023-08-24 05:32:29,582 INFO L125 PetriNetUnfolderBase]: For 1372/1382 co-relation queries the response was YES. [2023-08-24 05:32:29,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1542 conditions, 289 events. 116/289 cut-off events. For 1372/1382 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1279 event pairs, 20 based on Foata normal form. 15/303 useless extension candidates. Maximal degree in co-relation 1510. Up to 127 conditions per place. [2023-08-24 05:32:29,584 INFO L140 encePairwiseOnDemand]: 156/166 looper letters, 51 selfloop transitions, 27 changer transitions 13/94 dead transitions. [2023-08-24 05:32:29,584 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 94 transitions, 1005 flow [2023-08-24 05:32:29,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-24 05:32:29,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-24 05:32:29,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 721 transitions. [2023-08-24 05:32:29,587 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4343373493975904 [2023-08-24 05:32:29,587 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 721 transitions. [2023-08-24 05:32:29,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 721 transitions. [2023-08-24 05:32:29,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 05:32:29,588 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 721 transitions. [2023-08-24 05:32:29,589 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 72.1) internal successors, (721), 10 states have internal predecessors, (721), 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) [2023-08-24 05:32:29,591 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 166.0) internal successors, (1826), 11 states have internal predecessors, (1826), 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) [2023-08-24 05:32:29,592 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 166.0) internal successors, (1826), 11 states have internal predecessors, (1826), 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) [2023-08-24 05:32:29,592 INFO L175 Difference]: Start difference. First operand has 58 places, 48 transitions, 438 flow. Second operand 10 states and 721 transitions. [2023-08-24 05:32:29,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 94 transitions, 1005 flow [2023-08-24 05:32:29,596 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 94 transitions, 929 flow, removed 35 selfloop flow, removed 3 redundant places. [2023-08-24 05:32:29,598 INFO L231 Difference]: Finished difference. Result has 69 places, 62 transitions, 669 flow [2023-08-24 05:32:29,598 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=394, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=669, PETRI_PLACES=69, PETRI_TRANSITIONS=62} [2023-08-24 05:32:29,599 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 41 predicate places. [2023-08-24 05:32:29,599 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 62 transitions, 669 flow [2023-08-24 05:32:29,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 67.66666666666667) internal successors, (609), 9 states have internal predecessors, (609), 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) [2023-08-24 05:32:29,599 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:32:29,599 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:32:29,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-24 05:32:29,600 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-24 05:32:29,600 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:32:29,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1273394042, now seen corresponding path program 3 times [2023-08-24 05:32:29,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:32:29,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976796721] [2023-08-24 05:32:29,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:32:29,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:32:29,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 05:32:29,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 05:32:29,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 05:32:29,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976796721] [2023-08-24 05:32:29,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976796721] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 05:32:29,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 05:32:29,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-24 05:32:29,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647836032] [2023-08-24 05:32:29,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 05:32:29,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-24 05:32:29,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 05:32:29,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-24 05:32:29,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-24 05:32:29,783 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 166 [2023-08-24 05:32:29,783 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 62 transitions, 669 flow. Second operand has 4 states, 4 states have (on average 76.75) internal successors, (307), 4 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) [2023-08-24 05:32:29,783 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 05:32:29,783 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 166 [2023-08-24 05:32:29,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 05:32:29,853 INFO L124 PetriNetUnfolderBase]: 37/121 cut-off events. [2023-08-24 05:32:29,853 INFO L125 PetriNetUnfolderBase]: For 570/573 co-relation queries the response was YES. [2023-08-24 05:32:29,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 678 conditions, 121 events. 37/121 cut-off events. For 570/573 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 443 event pairs, 6 based on Foata normal form. 23/142 useless extension candidates. Maximal degree in co-relation 644. Up to 61 conditions per place. [2023-08-24 05:32:29,855 INFO L140 encePairwiseOnDemand]: 162/166 looper letters, 49 selfloop transitions, 5 changer transitions 10/67 dead transitions. [2023-08-24 05:32:29,855 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 67 transitions, 817 flow [2023-08-24 05:32:29,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-24 05:32:29,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-24 05:32:29,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 321 transitions. [2023-08-24 05:32:29,856 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48343373493975905 [2023-08-24 05:32:29,856 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 321 transitions. [2023-08-24 05:32:29,856 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 321 transitions. [2023-08-24 05:32:29,857 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 05:32:29,857 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 321 transitions. [2023-08-24 05:32:29,858 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 80.25) internal successors, (321), 4 states have internal predecessors, (321), 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) [2023-08-24 05:32:29,859 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 166.0) internal successors, (830), 5 states have internal predecessors, (830), 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) [2023-08-24 05:32:29,859 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 166.0) internal successors, (830), 5 states have internal predecessors, (830), 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) [2023-08-24 05:32:29,859 INFO L175 Difference]: Start difference. First operand has 69 places, 62 transitions, 669 flow. Second operand 4 states and 321 transitions. [2023-08-24 05:32:29,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 67 transitions, 817 flow [2023-08-24 05:32:29,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 67 transitions, 690 flow, removed 42 selfloop flow, removed 9 redundant places. [2023-08-24 05:32:29,864 INFO L231 Difference]: Finished difference. Result has 63 places, 49 transitions, 418 flow [2023-08-24 05:32:29,864 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=430, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=418, PETRI_PLACES=63, PETRI_TRANSITIONS=49} [2023-08-24 05:32:29,864 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 35 predicate places. [2023-08-24 05:32:29,865 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 49 transitions, 418 flow [2023-08-24 05:32:29,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.75) internal successors, (307), 4 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) [2023-08-24 05:32:29,865 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:32:29,865 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:32:29,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-24 05:32:29,865 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-24 05:32:29,866 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:32:29,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1528615378, now seen corresponding path program 1 times [2023-08-24 05:32:29,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:32:29,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188095606] [2023-08-24 05:32:29,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:32:29,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:32:29,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 05:32:30,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 05:32:30,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 05:32:30,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188095606] [2023-08-24 05:32:30,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188095606] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 05:32:30,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 05:32:30,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-24 05:32:30,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219825973] [2023-08-24 05:32:30,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 05:32:30,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-24 05:32:30,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 05:32:30,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-24 05:32:30,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-24 05:32:30,448 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 166 [2023-08-24 05:32:30,449 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 49 transitions, 418 flow. Second operand has 5 states, 5 states have (on average 65.6) internal successors, (328), 5 states have internal predecessors, (328), 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) [2023-08-24 05:32:30,449 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 05:32:30,449 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 166 [2023-08-24 05:32:30,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 05:32:30,567 INFO L124 PetriNetUnfolderBase]: 38/125 cut-off events. [2023-08-24 05:32:30,567 INFO L125 PetriNetUnfolderBase]: For 374/374 co-relation queries the response was YES. [2023-08-24 05:32:30,568 INFO L83 FinitePrefix]: Finished finitePrefix Result has 643 conditions, 125 events. 38/125 cut-off events. For 374/374 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 431 event pairs, 5 based on Foata normal form. 2/127 useless extension candidates. Maximal degree in co-relation 609. Up to 69 conditions per place. [2023-08-24 05:32:30,569 INFO L140 encePairwiseOnDemand]: 160/166 looper letters, 24 selfloop transitions, 4 changer transitions 45/73 dead transitions. [2023-08-24 05:32:30,569 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 73 transitions, 716 flow [2023-08-24 05:32:30,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-24 05:32:30,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-24 05:32:30,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 346 transitions. [2023-08-24 05:32:30,570 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41686746987951806 [2023-08-24 05:32:30,570 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 346 transitions. [2023-08-24 05:32:30,571 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 346 transitions. [2023-08-24 05:32:30,571 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 05:32:30,571 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 346 transitions. [2023-08-24 05:32:30,572 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 69.2) internal successors, (346), 5 states have internal predecessors, (346), 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) [2023-08-24 05:32:30,573 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 166.0) internal successors, (996), 6 states have internal predecessors, (996), 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) [2023-08-24 05:32:30,573 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 166.0) internal successors, (996), 6 states have internal predecessors, (996), 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) [2023-08-24 05:32:30,573 INFO L175 Difference]: Start difference. First operand has 63 places, 49 transitions, 418 flow. Second operand 5 states and 346 transitions. [2023-08-24 05:32:30,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 73 transitions, 716 flow [2023-08-24 05:32:30,576 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 73 transitions, 682 flow, removed 7 selfloop flow, removed 5 redundant places. [2023-08-24 05:32:30,578 INFO L231 Difference]: Finished difference. Result has 64 places, 24 transitions, 158 flow [2023-08-24 05:32:30,578 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=395, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=158, PETRI_PLACES=64, PETRI_TRANSITIONS=24} [2023-08-24 05:32:30,578 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 36 predicate places. [2023-08-24 05:32:30,578 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 24 transitions, 158 flow [2023-08-24 05:32:30,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 65.6) internal successors, (328), 5 states have internal predecessors, (328), 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) [2023-08-24 05:32:30,579 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:32:30,579 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:32:30,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-24 05:32:30,579 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-24 05:32:30,580 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:32:30,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1827285868, now seen corresponding path program 2 times [2023-08-24 05:32:30,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:32:30,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64176344] [2023-08-24 05:32:30,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:32:30,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:32:30,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 05:32:32,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 05:32:32,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 05:32:32,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64176344] [2023-08-24 05:32:32,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64176344] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 05:32:32,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 05:32:32,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-24 05:32:32,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781380615] [2023-08-24 05:32:32,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 05:32:32,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-24 05:32:32,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 05:32:32,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-24 05:32:32,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-08-24 05:32:32,833 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 166 [2023-08-24 05:32:32,833 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 24 transitions, 158 flow. Second operand has 11 states, 11 states have (on average 63.54545454545455) internal successors, (699), 11 states have internal predecessors, (699), 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) [2023-08-24 05:32:32,833 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 05:32:32,834 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 166 [2023-08-24 05:32:32,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 05:32:33,303 INFO L124 PetriNetUnfolderBase]: 10/49 cut-off events. [2023-08-24 05:32:33,304 INFO L125 PetriNetUnfolderBase]: For 93/93 co-relation queries the response was YES. [2023-08-24 05:32:33,304 INFO L83 FinitePrefix]: Finished finitePrefix Result has 233 conditions, 49 events. 10/49 cut-off events. For 93/93 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 80 event pairs, 1 based on Foata normal form. 1/50 useless extension candidates. Maximal degree in co-relation 208. Up to 17 conditions per place. [2023-08-24 05:32:33,305 INFO L140 encePairwiseOnDemand]: 157/166 looper letters, 17 selfloop transitions, 5 changer transitions 13/36 dead transitions. [2023-08-24 05:32:33,305 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 36 transitions, 292 flow [2023-08-24 05:32:33,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-24 05:32:33,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-24 05:32:33,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 588 transitions. [2023-08-24 05:32:33,307 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39357429718875503 [2023-08-24 05:32:33,307 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 588 transitions. [2023-08-24 05:32:33,307 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 588 transitions. [2023-08-24 05:32:33,308 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 05:32:33,308 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 588 transitions. [2023-08-24 05:32:33,309 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 65.33333333333333) internal successors, (588), 9 states have internal predecessors, (588), 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) [2023-08-24 05:32:33,311 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 166.0) internal successors, (1660), 10 states have internal predecessors, (1660), 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) [2023-08-24 05:32:33,312 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 166.0) internal successors, (1660), 10 states have internal predecessors, (1660), 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) [2023-08-24 05:32:33,312 INFO L175 Difference]: Start difference. First operand has 64 places, 24 transitions, 158 flow. Second operand 9 states and 588 transitions. [2023-08-24 05:32:33,312 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 36 transitions, 292 flow [2023-08-24 05:32:33,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 36 transitions, 218 flow, removed 19 selfloop flow, removed 19 redundant places. [2023-08-24 05:32:33,314 INFO L231 Difference]: Finished difference. Result has 46 places, 20 transitions, 96 flow [2023-08-24 05:32:33,314 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=96, PETRI_PLACES=46, PETRI_TRANSITIONS=20} [2023-08-24 05:32:33,314 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 18 predicate places. [2023-08-24 05:32:33,315 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 20 transitions, 96 flow [2023-08-24 05:32:33,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 63.54545454545455) internal successors, (699), 11 states have internal predecessors, (699), 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) [2023-08-24 05:32:33,315 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 05:32:33,315 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 05:32:33,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-24 05:32:33,315 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-24 05:32:33,316 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 05:32:33,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1303551252, now seen corresponding path program 3 times [2023-08-24 05:32:33,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 05:32:33,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028666100] [2023-08-24 05:32:33,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 05:32:33,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 05:32:33,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 05:32:34,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 05:32:34,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 05:32:34,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028666100] [2023-08-24 05:32:34,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028666100] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 05:32:34,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 05:32:34,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-24 05:32:34,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040934565] [2023-08-24 05:32:34,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 05:32:34,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-24 05:32:34,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 05:32:34,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-24 05:32:34,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-08-24 05:32:34,406 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 166 [2023-08-24 05:32:34,406 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 20 transitions, 96 flow. Second operand has 10 states, 10 states have (on average 66.7) internal successors, (667), 10 states have internal predecessors, (667), 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) [2023-08-24 05:32:34,406 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 05:32:34,406 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 166 [2023-08-24 05:32:34,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 05:32:34,494 INFO L124 PetriNetUnfolderBase]: 6/30 cut-off events. [2023-08-24 05:32:34,494 INFO L125 PetriNetUnfolderBase]: For 23/24 co-relation queries the response was YES. [2023-08-24 05:32:34,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118 conditions, 30 events. 6/30 cut-off events. For 23/24 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 25 event pairs, 2 based on Foata normal form. 1/31 useless extension candidates. Maximal degree in co-relation 105. Up to 10 conditions per place. [2023-08-24 05:32:34,494 INFO L140 encePairwiseOnDemand]: 159/166 looper letters, 0 selfloop transitions, 0 changer transitions 22/22 dead transitions. [2023-08-24 05:32:34,495 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 22 transitions, 152 flow [2023-08-24 05:32:34,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-24 05:32:34,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-24 05:32:34,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 540 transitions. [2023-08-24 05:32:34,496 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4066265060240964 [2023-08-24 05:32:34,496 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 540 transitions. [2023-08-24 05:32:34,496 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 540 transitions. [2023-08-24 05:32:34,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 05:32:34,497 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 540 transitions. [2023-08-24 05:32:34,498 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 67.5) internal successors, (540), 8 states have internal predecessors, (540), 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) [2023-08-24 05:32:34,500 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 166.0) internal successors, (1494), 9 states have internal predecessors, (1494), 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) [2023-08-24 05:32:34,500 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 166.0) internal successors, (1494), 9 states have internal predecessors, (1494), 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) [2023-08-24 05:32:34,500 INFO L175 Difference]: Start difference. First operand has 46 places, 20 transitions, 96 flow. Second operand 8 states and 540 transitions. [2023-08-24 05:32:34,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 22 transitions, 152 flow [2023-08-24 05:32:34,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 22 transitions, 122 flow, removed 8 selfloop flow, removed 12 redundant places. [2023-08-24 05:32:34,501 INFO L231 Difference]: Finished difference. Result has 35 places, 0 transitions, 0 flow [2023-08-24 05:32:34,501 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=35, PETRI_TRANSITIONS=0} [2023-08-24 05:32:34,502 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 7 predicate places. [2023-08-24 05:32:34,502 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 0 transitions, 0 flow [2023-08-24 05:32:34,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 66.7) internal successors, (667), 10 states have internal predecessors, (667), 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) [2023-08-24 05:32:34,504 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2023-08-24 05:32:34,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2023-08-24 05:32:34,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2023-08-24 05:32:34,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2023-08-24 05:32:34,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2023-08-24 05:32:34,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-24 05:32:34,505 INFO L445 BasicCegarLoop]: Path program histogram: [3, 3, 2, 1, 1, 1, 1] [2023-08-24 05:32:34,509 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-24 05:32:34,509 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-24 05:32:34,511 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.08 05:32:34 BasicIcfg [2023-08-24 05:32:34,512 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-24 05:32:34,512 INFO L158 Benchmark]: Toolchain (without parser) took 17030.71ms. Allocated memory was 360.7MB in the beginning and 662.7MB in the end (delta: 302.0MB). Free memory was 319.3MB in the beginning and 335.2MB in the end (delta: -15.9MB). Peak memory consumption was 287.1MB. Max. memory is 16.0GB. [2023-08-24 05:32:34,512 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 360.7MB. Free memory is still 338.1MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-24 05:32:34,512 INFO L158 Benchmark]: CACSL2BoogieTranslator took 513.09ms. Allocated memory is still 360.7MB. Free memory was 318.8MB in the beginning and 293.7MB in the end (delta: 25.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. [2023-08-24 05:32:34,513 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.64ms. Allocated memory is still 360.7MB. Free memory was 293.7MB in the beginning and 337.0MB in the end (delta: -43.3MB). Peak memory consumption was 7.7MB. Max. memory is 16.0GB. [2023-08-24 05:32:34,513 INFO L158 Benchmark]: Boogie Preprocessor took 26.61ms. Allocated memory is still 360.7MB. Free memory was 337.0MB in the beginning and 334.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-24 05:32:34,513 INFO L158 Benchmark]: RCFGBuilder took 673.21ms. Allocated memory is still 360.7MB. Free memory was 334.9MB in the beginning and 285.4MB in the end (delta: 49.5MB). Peak memory consumption was 48.2MB. Max. memory is 16.0GB. [2023-08-24 05:32:34,513 INFO L158 Benchmark]: TraceAbstraction took 15726.86ms. Allocated memory was 360.7MB in the beginning and 662.7MB in the end (delta: 302.0MB). Free memory was 284.6MB in the beginning and 335.2MB in the end (delta: -50.6MB). Peak memory consumption was 250.1MB. Max. memory is 16.0GB. [2023-08-24 05:32:34,514 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 360.7MB. Free memory is still 338.1MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 513.09ms. Allocated memory is still 360.7MB. Free memory was 318.8MB in the beginning and 293.7MB in the end (delta: 25.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 82.64ms. Allocated memory is still 360.7MB. Free memory was 293.7MB in the beginning and 337.0MB in the end (delta: -43.3MB). Peak memory consumption was 7.7MB. Max. memory is 16.0GB. * Boogie Preprocessor took 26.61ms. Allocated memory is still 360.7MB. Free memory was 337.0MB in the beginning and 334.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 673.21ms. Allocated memory is still 360.7MB. Free memory was 334.9MB in the beginning and 285.4MB in the end (delta: 49.5MB). Peak memory consumption was 48.2MB. Max. memory is 16.0GB. * TraceAbstraction took 15726.86ms. Allocated memory was 360.7MB in the beginning and 662.7MB in the end (delta: 302.0MB). Free memory was 284.6MB in the beginning and 335.2MB in the end (delta: -50.6MB). Peak memory consumption was 250.1MB. 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: 3.0s, 93 PlacesBefore, 28 PlacesAfterwards, 88 TransitionsBefore, 22 TransitionsAfterwards, 1156 CoEnabledTransitionPairs, 6 FixpointIterations, 35 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 76 TotalNumberOfCompositions, 3494 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1103, independent: 942, independent conditional: 0, independent unconditional: 942, dependent: 161, dependent conditional: 0, dependent unconditional: 161, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 578, independent: 550, independent conditional: 0, independent unconditional: 550, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1103, independent: 392, independent conditional: 0, independent unconditional: 392, dependent: 133, dependent conditional: 0, dependent unconditional: 133, unknown: 578, unknown conditional: 0, unknown unconditional: 578] , Statistics on independence cache: Total cache size (in pairs): 42, Positive cache size: 28, Positive conditional cache size: 0, Positive unconditional cache size: 28, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 110 locations, 5 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: 15.6s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 144 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 144 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 57 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1285 IncrementalHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 57 mSolverCounterUnsat, 5 mSDtfsCounter, 1285 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 75 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=669occurred in iteration=8, InterpolantAutomatonStates: 78, 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, 0.3s SatisfiabilityAnalysisTime, 8.9s InterpolantComputationTime, 161 NumberOfCodeBlocks, 161 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 149 ConstructedInterpolants, 0 QuantifiedInterpolants, 2335 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-24 05:32:34,532 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...