/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/pthread-wmm/safe029_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 05:38:48,290 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 05:38:48,375 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-26 05:38:48,380 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 05:38:48,380 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 05:38:48,413 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 05:38:48,414 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 05:38:48,418 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 05:38:48,419 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 05:38:48,422 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 05:38:48,423 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 05:38:48,423 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 05:38:48,423 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 05:38:48,424 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 05:38:48,424 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 05:38:48,425 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 05:38:48,425 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 05:38:48,425 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 05:38:48,425 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 05:38:48,425 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 05:38:48,426 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 05:38:48,426 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 05:38:48,427 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 05:38:48,427 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 05:38:48,427 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 05:38:48,428 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 05:38:48,428 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 05:38:48,428 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 05:38:48,428 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 05:38:48,428 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 05:38:48,429 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 05:38:48,429 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 05:38:48,430 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 05:38:48,430 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 05:38:48,430 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 05:38:48,430 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-26 05:38:48,742 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 05:38:48,759 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 05:38:48,761 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 05:38:48,762 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 05:38:48,762 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 05:38:48,764 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe029_tso.i [2023-08-26 05:38:49,942 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 05:38:50,226 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 05:38:50,227 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe029_tso.i [2023-08-26 05:38:50,249 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b9b8a58f/d61d40334be34165a5bc983c209b736c/FLAGde7d24c26 [2023-08-26 05:38:50,260 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b9b8a58f/d61d40334be34165a5bc983c209b736c [2023-08-26 05:38:50,262 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 05:38:50,263 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 05:38:50,264 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 05:38:50,264 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 05:38:50,267 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 05:38:50,267 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 05:38:50" (1/1) ... [2023-08-26 05:38:50,268 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@edc390f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 05:38:50, skipping insertion in model container [2023-08-26 05:38:50,268 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 05:38:50" (1/1) ... [2023-08-26 05:38:50,315 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 05:38:50,607 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 05:38:50,616 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 05:38:50,644 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-26 05:38:50,645 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-26 05:38:50,668 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 05:38:50,698 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-26 05:38:50,699 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-26 05:38:50,705 INFO L206 MainTranslator]: Completed translation [2023-08-26 05:38:50,705 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 05:38:50 WrapperNode [2023-08-26 05:38:50,705 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 05:38:50,707 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 05:38:50,707 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 05:38:50,707 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 05:38:50,713 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 05:38:50" (1/1) ... [2023-08-26 05:38:50,743 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 05:38:50" (1/1) ... [2023-08-26 05:38:50,769 INFO L138 Inliner]: procedures = 175, calls = 41, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 82 [2023-08-26 05:38:50,769 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 05:38:50,770 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 05:38:50,770 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 05:38:50,770 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 05:38:50,778 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 05:38:50" (1/1) ... [2023-08-26 05:38:50,779 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 05:38:50" (1/1) ... [2023-08-26 05:38:50,796 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 05:38:50" (1/1) ... [2023-08-26 05:38:50,796 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 05:38:50" (1/1) ... [2023-08-26 05:38:50,801 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 05:38:50" (1/1) ... [2023-08-26 05:38:50,802 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 05:38:50" (1/1) ... [2023-08-26 05:38:50,804 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 05:38:50" (1/1) ... [2023-08-26 05:38:50,805 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 05:38:50" (1/1) ... [2023-08-26 05:38:50,807 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 05:38:50,808 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 05:38:50,808 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 05:38:50,808 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 05:38:50,820 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 05:38:50" (1/1) ... [2023-08-26 05:38:50,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 05:38:50,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 05:38:50,846 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-26 05:38:50,868 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-26 05:38:50,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 05:38:50,882 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-26 05:38:50,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 05:38:50,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 05:38:50,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 05:38:50,882 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-26 05:38:50,882 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-26 05:38:50,882 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-26 05:38:50,882 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-26 05:38:50,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 05:38:50,883 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-26 05:38:50,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 05:38:50,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 05:38:50,884 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 05:38:51,035 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 05:38:51,038 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 05:38:51,287 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 05:38:51,389 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 05:38:51,389 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-26 05:38:51,391 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 05:38:51 BoogieIcfgContainer [2023-08-26 05:38:51,391 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 05:38:51,394 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 05:38:51,394 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 05:38:51,396 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 05:38:51,397 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 05:38:50" (1/3) ... [2023-08-26 05:38:51,397 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41ddd8c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 05:38:51, skipping insertion in model container [2023-08-26 05:38:51,398 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 05:38:50" (2/3) ... [2023-08-26 05:38:51,398 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41ddd8c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 05:38:51, skipping insertion in model container [2023-08-26 05:38:51,398 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 05:38:51" (3/3) ... [2023-08-26 05:38:51,399 INFO L112 eAbstractionObserver]: Analyzing ICFG safe029_tso.i [2023-08-26 05:38:51,414 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 05:38:51,415 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-08-26 05:38:51,415 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 05:38:51,471 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 05:38:51,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 89 transitions, 188 flow [2023-08-26 05:38:51,529 INFO L124 PetriNetUnfolderBase]: 3/87 cut-off events. [2023-08-26 05:38:51,530 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 05:38:51,533 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 87 events. 3/87 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 92 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 70. Up to 2 conditions per place. [2023-08-26 05:38:51,534 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 89 transitions, 188 flow [2023-08-26 05:38:51,537 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 91 places, 87 transitions, 180 flow [2023-08-26 05:38:51,540 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 05:38:51,547 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 87 transitions, 180 flow [2023-08-26 05:38:51,549 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 87 transitions, 180 flow [2023-08-26 05:38:51,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 91 places, 87 transitions, 180 flow [2023-08-26 05:38:51,566 INFO L124 PetriNetUnfolderBase]: 3/87 cut-off events. [2023-08-26 05:38:51,566 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 05:38:51,567 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 87 events. 3/87 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 91 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 70. Up to 2 conditions per place. [2023-08-26 05:38:51,568 INFO L119 LiptonReduction]: Number of co-enabled transitions 1980 [2023-08-26 05:38:53,913 INFO L134 LiptonReduction]: Checked pairs total: 6233 [2023-08-26 05:38:53,913 INFO L136 LiptonReduction]: Total number of compositions: 94 [2023-08-26 05:38:53,925 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 05:38:53,931 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;@e00f8e9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 05:38:53,931 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2023-08-26 05:38:53,934 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 05:38:53,934 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-08-26 05:38:53,934 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 05:38:53,934 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 05:38:53,935 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-26 05:38:53,935 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-26 05:38:53,939 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 05:38:53,940 INFO L85 PathProgramCache]: Analyzing trace with hash 436187, now seen corresponding path program 1 times [2023-08-26 05:38:53,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 05:38:53,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601895492] [2023-08-26 05:38:53,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 05:38:53,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 05:38:54,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 05:38:54,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 05:38:54,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 05:38:54,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601895492] [2023-08-26 05:38:54,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601895492] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 05:38:54,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 05:38:54,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 05:38:54,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206034838] [2023-08-26 05:38:54,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 05:38:54,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-26 05:38:54,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 05:38:54,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-26 05:38:54,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-26 05:38:54,115 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 183 [2023-08-26 05:38:54,117 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 28 transitions, 62 flow. Second operand has 2 states, 2 states have (on average 63.5) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 05:38:54,117 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 05:38:54,117 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 183 [2023-08-26 05:38:54,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 05:38:54,194 INFO L124 PetriNetUnfolderBase]: 87/160 cut-off events. [2023-08-26 05:38:54,194 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-26 05:38:54,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 334 conditions, 160 events. 87/160 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 482 event pairs, 87 based on Foata normal form. 0/144 useless extension candidates. Maximal degree in co-relation 324. Up to 161 conditions per place. [2023-08-26 05:38:54,196 INFO L140 encePairwiseOnDemand]: 168/183 looper letters, 12 selfloop transitions, 0 changer transitions 1/13 dead transitions. [2023-08-26 05:38:54,196 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 13 transitions, 58 flow [2023-08-26 05:38:54,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-26 05:38:54,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-26 05:38:54,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 152 transitions. [2023-08-26 05:38:54,206 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41530054644808745 [2023-08-26 05:38:54,207 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 152 transitions. [2023-08-26 05:38:54,207 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 152 transitions. [2023-08-26 05:38:54,208 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 05:38:54,210 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 152 transitions. [2023-08-26 05:38:54,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 76.0) internal successors, (152), 2 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 05:38:54,214 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 183.0) internal successors, (549), 3 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 05:38:54,215 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 183.0) internal successors, (549), 3 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 05:38:54,216 INFO L175 Difference]: Start difference. First operand has 35 places, 28 transitions, 62 flow. Second operand 2 states and 152 transitions. [2023-08-26 05:38:54,217 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 13 transitions, 58 flow [2023-08-26 05:38:54,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 13 transitions, 56 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 05:38:54,219 INFO L231 Difference]: Finished difference. Result has 19 places, 12 transitions, 28 flow [2023-08-26 05:38:54,221 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=28, PETRI_PLACES=19, PETRI_TRANSITIONS=12} [2023-08-26 05:38:54,224 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -16 predicate places. [2023-08-26 05:38:54,224 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 12 transitions, 28 flow [2023-08-26 05:38:54,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 63.5) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 05:38:54,224 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 05:38:54,224 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-26 05:38:54,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 05:38:54,225 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-26 05:38:54,225 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 05:38:54,225 INFO L85 PathProgramCache]: Analyzing trace with hash 111065149, now seen corresponding path program 1 times [2023-08-26 05:38:54,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 05:38:54,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624164819] [2023-08-26 05:38:54,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 05:38:54,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 05:38:54,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 05:38:54,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 05:38:54,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 05:38:54,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624164819] [2023-08-26 05:38:54,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624164819] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 05:38:54,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 05:38:54,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 05:38:54,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399511582] [2023-08-26 05:38:54,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 05:38:54,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 05:38:54,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 05:38:54,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 05:38:54,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 05:38:54,388 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 183 [2023-08-26 05:38:54,389 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 12 transitions, 28 flow. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 05:38:54,389 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 05:38:54,389 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 183 [2023-08-26 05:38:54,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 05:38:54,426 INFO L124 PetriNetUnfolderBase]: 59/114 cut-off events. [2023-08-26 05:38:54,426 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 05:38:54,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 241 conditions, 114 events. 59/114 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 325 event pairs, 24 based on Foata normal form. 2/116 useless extension candidates. Maximal degree in co-relation 238. Up to 107 conditions per place. [2023-08-26 05:38:54,427 INFO L140 encePairwiseOnDemand]: 179/183 looper letters, 15 selfloop transitions, 3 changer transitions 0/18 dead transitions. [2023-08-26 05:38:54,427 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 18 transitions, 78 flow [2023-08-26 05:38:54,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 05:38:54,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 05:38:54,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 202 transitions. [2023-08-26 05:38:54,435 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3679417122040073 [2023-08-26 05:38:54,435 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 202 transitions. [2023-08-26 05:38:54,435 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 202 transitions. [2023-08-26 05:38:54,435 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 05:38:54,435 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 202 transitions. [2023-08-26 05:38:54,437 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 05:38:54,438 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 183.0) internal successors, (732), 4 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 05:38:54,438 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 183.0) internal successors, (732), 4 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 05:38:54,438 INFO L175 Difference]: Start difference. First operand has 19 places, 12 transitions, 28 flow. Second operand 3 states and 202 transitions. [2023-08-26 05:38:54,439 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 18 transitions, 78 flow [2023-08-26 05:38:54,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 18 transitions, 78 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 05:38:54,439 INFO L231 Difference]: Finished difference. Result has 21 places, 14 transitions, 47 flow [2023-08-26 05:38:54,439 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=47, PETRI_PLACES=21, PETRI_TRANSITIONS=14} [2023-08-26 05:38:54,440 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -14 predicate places. [2023-08-26 05:38:54,440 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 14 transitions, 47 flow [2023-08-26 05:38:54,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 05:38:54,441 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 05:38:54,441 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-26 05:38:54,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 05:38:54,441 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-26 05:38:54,441 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 05:38:54,442 INFO L85 PathProgramCache]: Analyzing trace with hash -851948758, now seen corresponding path program 1 times [2023-08-26 05:38:54,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 05:38:54,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611459164] [2023-08-26 05:38:54,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 05:38:54,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 05:38:54,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 05:38:54,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 05:38:54,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 05:38:54,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611459164] [2023-08-26 05:38:54,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611459164] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 05:38:54,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 05:38:54,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 05:38:54,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428154057] [2023-08-26 05:38:54,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 05:38:54,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 05:38:54,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 05:38:54,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 05:38:54,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 05:38:54,562 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 183 [2023-08-26 05:38:54,562 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 14 transitions, 47 flow. Second operand has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 05:38:54,562 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 05:38:54,563 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 183 [2023-08-26 05:38:54,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 05:38:54,609 INFO L124 PetriNetUnfolderBase]: 57/111 cut-off events. [2023-08-26 05:38:54,609 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-26 05:38:54,610 INFO L83 FinitePrefix]: Finished finitePrefix Result has 282 conditions, 111 events. 57/111 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 296 event pairs, 22 based on Foata normal form. 1/112 useless extension candidates. Maximal degree in co-relation 277. Up to 100 conditions per place. [2023-08-26 05:38:54,612 INFO L140 encePairwiseOnDemand]: 179/183 looper letters, 17 selfloop transitions, 3 changer transitions 0/20 dead transitions. [2023-08-26 05:38:54,613 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 20 transitions, 104 flow [2023-08-26 05:38:54,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 05:38:54,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 05:38:54,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 202 transitions. [2023-08-26 05:38:54,615 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3679417122040073 [2023-08-26 05:38:54,616 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 202 transitions. [2023-08-26 05:38:54,616 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 202 transitions. [2023-08-26 05:38:54,617 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 05:38:54,617 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 202 transitions. [2023-08-26 05:38:54,617 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 05:38:54,619 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 183.0) internal successors, (732), 4 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 05:38:54,619 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 183.0) internal successors, (732), 4 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 05:38:54,619 INFO L175 Difference]: Start difference. First operand has 21 places, 14 transitions, 47 flow. Second operand 3 states and 202 transitions. [2023-08-26 05:38:54,620 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 20 transitions, 104 flow [2023-08-26 05:38:54,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 20 transitions, 100 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 05:38:54,621 INFO L231 Difference]: Finished difference. Result has 23 places, 16 transitions, 63 flow [2023-08-26 05:38:54,621 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=63, PETRI_PLACES=23, PETRI_TRANSITIONS=16} [2023-08-26 05:38:54,621 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -12 predicate places. [2023-08-26 05:38:54,622 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 16 transitions, 63 flow [2023-08-26 05:38:54,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 05:38:54,622 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 05:38:54,622 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 05:38:54,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 05:38:54,622 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-26 05:38:54,623 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 05:38:54,623 INFO L85 PathProgramCache]: Analyzing trace with hash -614519203, now seen corresponding path program 1 times [2023-08-26 05:38:54,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 05:38:54,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709521881] [2023-08-26 05:38:54,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 05:38:54,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 05:38:54,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 05:38:54,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 05:38:54,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 05:38:54,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709521881] [2023-08-26 05:38:54,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709521881] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 05:38:54,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 05:38:54,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 05:38:54,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141123011] [2023-08-26 05:38:54,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 05:38:54,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 05:38:54,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 05:38:54,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 05:38:54,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 05:38:54,710 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 183 [2023-08-26 05:38:54,710 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 16 transitions, 63 flow. Second operand has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 05:38:54,710 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 05:38:54,710 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 183 [2023-08-26 05:38:54,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 05:38:54,745 INFO L124 PetriNetUnfolderBase]: 63/133 cut-off events. [2023-08-26 05:38:54,746 INFO L125 PetriNetUnfolderBase]: For 60/60 co-relation queries the response was YES. [2023-08-26 05:38:54,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 364 conditions, 133 events. 63/133 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 439 event pairs, 24 based on Foata normal form. 8/141 useless extension candidates. Maximal degree in co-relation 358. Up to 84 conditions per place. [2023-08-26 05:38:54,747 INFO L140 encePairwiseOnDemand]: 180/183 looper letters, 19 selfloop transitions, 3 changer transitions 0/22 dead transitions. [2023-08-26 05:38:54,747 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 22 transitions, 123 flow [2023-08-26 05:38:54,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 05:38:54,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 05:38:54,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 203 transitions. [2023-08-26 05:38:54,748 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3697632058287796 [2023-08-26 05:38:54,749 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 203 transitions. [2023-08-26 05:38:54,749 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 203 transitions. [2023-08-26 05:38:54,749 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 05:38:54,749 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 203 transitions. [2023-08-26 05:38:54,750 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 05:38:54,751 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 183.0) internal successors, (732), 4 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 05:38:54,751 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 183.0) internal successors, (732), 4 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 05:38:54,752 INFO L175 Difference]: Start difference. First operand has 23 places, 16 transitions, 63 flow. Second operand 3 states and 203 transitions. [2023-08-26 05:38:54,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 22 transitions, 123 flow [2023-08-26 05:38:54,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 22 transitions, 120 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 05:38:54,753 INFO L231 Difference]: Finished difference. Result has 25 places, 16 transitions, 71 flow [2023-08-26 05:38:54,753 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=71, PETRI_PLACES=25, PETRI_TRANSITIONS=16} [2023-08-26 05:38:54,754 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -10 predicate places. [2023-08-26 05:38:54,754 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 16 transitions, 71 flow [2023-08-26 05:38:54,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 05:38:54,754 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 05:38:54,754 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 05:38:54,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 05:38:54,755 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-26 05:38:54,755 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 05:38:54,755 INFO L85 PathProgramCache]: Analyzing trace with hash -614518118, now seen corresponding path program 1 times [2023-08-26 05:38:54,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 05:38:54,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679614833] [2023-08-26 05:38:54,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 05:38:54,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 05:38:54,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 05:38:54,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 05:38:54,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 05:38:54,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679614833] [2023-08-26 05:38:54,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679614833] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 05:38:54,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 05:38:54,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 05:38:54,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520846104] [2023-08-26 05:38:54,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 05:38:54,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 05:38:54,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 05:38:54,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 05:38:54,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 05:38:54,857 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 183 [2023-08-26 05:38:54,858 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 16 transitions, 71 flow. Second operand has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 05:38:54,858 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 05:38:54,858 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 183 [2023-08-26 05:38:54,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 05:38:54,889 INFO L124 PetriNetUnfolderBase]: 29/79 cut-off events. [2023-08-26 05:38:54,890 INFO L125 PetriNetUnfolderBase]: For 71/71 co-relation queries the response was YES. [2023-08-26 05:38:54,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 239 conditions, 79 events. 29/79 cut-off events. For 71/71 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 223 event pairs, 9 based on Foata normal form. 11/90 useless extension candidates. Maximal degree in co-relation 232. Up to 55 conditions per place. [2023-08-26 05:38:54,891 INFO L140 encePairwiseOnDemand]: 179/183 looper letters, 20 selfloop transitions, 3 changer transitions 1/24 dead transitions. [2023-08-26 05:38:54,891 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 24 transitions, 151 flow [2023-08-26 05:38:54,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 05:38:54,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 05:38:54,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 204 transitions. [2023-08-26 05:38:54,892 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37158469945355194 [2023-08-26 05:38:54,892 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 204 transitions. [2023-08-26 05:38:54,892 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 204 transitions. [2023-08-26 05:38:54,892 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 05:38:54,892 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 204 transitions. [2023-08-26 05:38:54,893 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 05:38:54,894 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 183.0) internal successors, (732), 4 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 05:38:54,895 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 183.0) internal successors, (732), 4 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 05:38:54,895 INFO L175 Difference]: Start difference. First operand has 25 places, 16 transitions, 71 flow. Second operand 3 states and 204 transitions. [2023-08-26 05:38:54,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 24 transitions, 151 flow [2023-08-26 05:38:54,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 24 transitions, 142 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-08-26 05:38:54,896 INFO L231 Difference]: Finished difference. Result has 27 places, 18 transitions, 85 flow [2023-08-26 05:38:54,897 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=85, PETRI_PLACES=27, PETRI_TRANSITIONS=18} [2023-08-26 05:38:54,897 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -8 predicate places. [2023-08-26 05:38:54,897 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 18 transitions, 85 flow [2023-08-26 05:38:54,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 05:38:54,898 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 05:38:54,898 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 05:38:54,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-26 05:38:54,898 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-26 05:38:54,898 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 05:38:54,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1549217026, now seen corresponding path program 1 times [2023-08-26 05:38:54,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 05:38:54,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300620825] [2023-08-26 05:38:54,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 05:38:54,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 05:38:54,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 05:38:54,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 05:38:54,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 05:38:54,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300620825] [2023-08-26 05:38:54,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300620825] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 05:38:54,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 05:38:54,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 05:38:54,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206981406] [2023-08-26 05:38:54,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 05:38:54,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 05:38:54,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 05:38:54,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 05:38:54,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 05:38:54,932 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 183 [2023-08-26 05:38:54,932 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 18 transitions, 85 flow. Second operand has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 05:38:54,933 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 05:38:54,933 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 183 [2023-08-26 05:38:54,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 05:38:54,961 INFO L124 PetriNetUnfolderBase]: 29/87 cut-off events. [2023-08-26 05:38:54,961 INFO L125 PetriNetUnfolderBase]: For 65/65 co-relation queries the response was YES. [2023-08-26 05:38:54,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 301 conditions, 87 events. 29/87 cut-off events. For 65/65 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 287 event pairs, 11 based on Foata normal form. 5/92 useless extension candidates. Maximal degree in co-relation 293. Up to 53 conditions per place. [2023-08-26 05:38:54,962 INFO L140 encePairwiseOnDemand]: 180/183 looper letters, 17 selfloop transitions, 3 changer transitions 4/24 dead transitions. [2023-08-26 05:38:54,962 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 24 transitions, 161 flow [2023-08-26 05:38:54,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 05:38:54,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 05:38:54,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 201 transitions. [2023-08-26 05:38:54,963 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.366120218579235 [2023-08-26 05:38:54,963 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 201 transitions. [2023-08-26 05:38:54,963 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 201 transitions. [2023-08-26 05:38:54,964 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 05:38:54,964 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 201 transitions. [2023-08-26 05:38:54,964 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 05:38:54,966 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 183.0) internal successors, (732), 4 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 05:38:54,966 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 183.0) internal successors, (732), 4 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 05:38:54,966 INFO L175 Difference]: Start difference. First operand has 27 places, 18 transitions, 85 flow. Second operand 3 states and 201 transitions. [2023-08-26 05:38:54,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 24 transitions, 161 flow [2023-08-26 05:38:54,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 24 transitions, 156 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 05:38:54,970 INFO L231 Difference]: Finished difference. Result has 29 places, 18 transitions, 93 flow [2023-08-26 05:38:54,971 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=93, PETRI_PLACES=29, PETRI_TRANSITIONS=18} [2023-08-26 05:38:54,973 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -6 predicate places. [2023-08-26 05:38:54,975 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 18 transitions, 93 flow [2023-08-26 05:38:54,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 05:38:54,975 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 05:38:54,975 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 05:38:54,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-26 05:38:54,976 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-26 05:38:54,976 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 05:38:54,976 INFO L85 PathProgramCache]: Analyzing trace with hash 2056707429, now seen corresponding path program 1 times [2023-08-26 05:38:54,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 05:38:54,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564279624] [2023-08-26 05:38:54,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 05:38:54,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 05:38:55,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 05:38:55,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 05:38:55,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 05:38:55,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564279624] [2023-08-26 05:38:55,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564279624] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 05:38:55,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 05:38:55,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 05:38:55,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704167281] [2023-08-26 05:38:55,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 05:38:55,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 05:38:55,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 05:38:55,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 05:38:55,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-26 05:38:55,120 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 183 [2023-08-26 05:38:55,120 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 18 transitions, 93 flow. Second operand has 4 states, 4 states have (on average 63.5) internal successors, (254), 4 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 05:38:55,120 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 05:38:55,120 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 183 [2023-08-26 05:38:55,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 05:38:55,151 INFO L124 PetriNetUnfolderBase]: 17/57 cut-off events. [2023-08-26 05:38:55,151 INFO L125 PetriNetUnfolderBase]: For 55/55 co-relation queries the response was YES. [2023-08-26 05:38:55,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 57 events. 17/57 cut-off events. For 55/55 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 156 event pairs, 6 based on Foata normal form. 12/69 useless extension candidates. Maximal degree in co-relation 192. Up to 26 conditions per place. [2023-08-26 05:38:55,153 INFO L140 encePairwiseOnDemand]: 179/183 looper letters, 0 selfloop transitions, 0 changer transitions 23/23 dead transitions. [2023-08-26 05:38:55,154 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 23 transitions, 159 flow [2023-08-26 05:38:55,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 05:38:55,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 05:38:55,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 264 transitions. [2023-08-26 05:38:55,155 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36065573770491804 [2023-08-26 05:38:55,155 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 264 transitions. [2023-08-26 05:38:55,155 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 264 transitions. [2023-08-26 05:38:55,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 05:38:55,156 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 264 transitions. [2023-08-26 05:38:55,156 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 66.0) internal successors, (264), 4 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 05:38:55,158 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 183.0) internal successors, (915), 5 states have internal predecessors, (915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 05:38:55,159 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 183.0) internal successors, (915), 5 states have internal predecessors, (915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 05:38:55,159 INFO L175 Difference]: Start difference. First operand has 29 places, 18 transitions, 93 flow. Second operand 4 states and 264 transitions. [2023-08-26 05:38:55,159 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 23 transitions, 159 flow [2023-08-26 05:38:55,161 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 23 transitions, 140 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-08-26 05:38:55,161 INFO L231 Difference]: Finished difference. Result has 28 places, 0 transitions, 0 flow [2023-08-26 05:38:55,161 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=28, PETRI_TRANSITIONS=0} [2023-08-26 05:38:55,164 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -7 predicate places. [2023-08-26 05:38:55,165 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 0 transitions, 0 flow [2023-08-26 05:38:55,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 63.5) internal successors, (254), 4 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 05:38:55,168 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONDATA_RACE (25 of 26 remaining) [2023-08-26 05:38:55,169 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONDATA_RACE (24 of 26 remaining) [2023-08-26 05:38:55,170 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err2ASSERT_VIOLATIONDATA_RACE (23 of 26 remaining) [2023-08-26 05:38:55,170 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err3ASSERT_VIOLATIONDATA_RACE (22 of 26 remaining) [2023-08-26 05:38:55,170 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONDATA_RACE (21 of 26 remaining) [2023-08-26 05:38:55,170 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONDATA_RACE (20 of 26 remaining) [2023-08-26 05:38:55,170 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err2ASSERT_VIOLATIONDATA_RACE (19 of 26 remaining) [2023-08-26 05:38:55,170 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err3ASSERT_VIOLATIONDATA_RACE (18 of 26 remaining) [2023-08-26 05:38:55,171 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (17 of 26 remaining) [2023-08-26 05:38:55,171 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (16 of 26 remaining) [2023-08-26 05:38:55,171 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (15 of 26 remaining) [2023-08-26 05:38:55,171 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (14 of 26 remaining) [2023-08-26 05:38:55,171 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (13 of 26 remaining) [2023-08-26 05:38:55,172 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (12 of 26 remaining) [2023-08-26 05:38:55,172 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (11 of 26 remaining) [2023-08-26 05:38:55,172 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONASSERT (10 of 26 remaining) [2023-08-26 05:38:55,172 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 26 remaining) [2023-08-26 05:38:55,172 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 26 remaining) [2023-08-26 05:38:55,173 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONDATA_RACE (7 of 26 remaining) [2023-08-26 05:38:55,173 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONDATA_RACE (6 of 26 remaining) [2023-08-26 05:38:55,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err2ASSERT_VIOLATIONDATA_RACE (5 of 26 remaining) [2023-08-26 05:38:55,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err3ASSERT_VIOLATIONDATA_RACE (4 of 26 remaining) [2023-08-26 05:38:55,177 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONDATA_RACE (3 of 26 remaining) [2023-08-26 05:38:55,177 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONDATA_RACE (2 of 26 remaining) [2023-08-26 05:38:55,178 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err2ASSERT_VIOLATIONDATA_RACE (1 of 26 remaining) [2023-08-26 05:38:55,178 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err3ASSERT_VIOLATIONDATA_RACE (0 of 26 remaining) [2023-08-26 05:38:55,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-26 05:38:55,179 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-08-26 05:38:55,184 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 05:38:55,184 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 05:38:55,189 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 05:38:55 BasicIcfg [2023-08-26 05:38:55,189 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 05:38:55,189 INFO L158 Benchmark]: Toolchain (without parser) took 4926.44ms. Allocated memory was 356.5MB in the beginning and 461.4MB in the end (delta: 104.9MB). Free memory was 331.4MB in the beginning and 302.1MB in the end (delta: 29.3MB). Peak memory consumption was 135.7MB. Max. memory is 16.0GB. [2023-08-26 05:38:55,190 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 356.5MB. Free memory is still 332.9MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 05:38:55,190 INFO L158 Benchmark]: CACSL2BoogieTranslator took 441.64ms. Allocated memory is still 356.5MB. Free memory was 331.4MB in the beginning and 311.0MB in the end (delta: 20.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-26 05:38:55,190 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.98ms. Allocated memory is still 356.5MB. Free memory was 311.0MB in the beginning and 308.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 05:38:55,190 INFO L158 Benchmark]: Boogie Preprocessor took 36.86ms. Allocated memory is still 356.5MB. Free memory was 308.9MB in the beginning and 307.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 05:38:55,191 INFO L158 Benchmark]: RCFGBuilder took 583.71ms. Allocated memory is still 356.5MB. Free memory was 307.3MB in the beginning and 285.9MB in the end (delta: 21.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-08-26 05:38:55,191 INFO L158 Benchmark]: TraceAbstraction took 3795.56ms. Allocated memory was 356.5MB in the beginning and 461.4MB in the end (delta: 104.9MB). Free memory was 284.8MB in the beginning and 302.1MB in the end (delta: -17.4MB). Peak memory consumption was 89.6MB. Max. memory is 16.0GB. [2023-08-26 05:38:55,194 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 356.5MB. Free memory is still 332.9MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 441.64ms. Allocated memory is still 356.5MB. Free memory was 331.4MB in the beginning and 311.0MB in the end (delta: 20.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 62.98ms. Allocated memory is still 356.5MB. Free memory was 311.0MB in the beginning and 308.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 36.86ms. Allocated memory is still 356.5MB. Free memory was 308.9MB in the beginning and 307.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 583.71ms. Allocated memory is still 356.5MB. Free memory was 307.3MB in the beginning and 285.9MB in the end (delta: 21.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * TraceAbstraction took 3795.56ms. Allocated memory was 356.5MB in the beginning and 461.4MB in the end (delta: 104.9MB). Free memory was 284.8MB in the beginning and 302.1MB in the end (delta: -17.4MB). Peak memory consumption was 89.6MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 267]: Unsoundness Warning unspecified type, defaulting to int C: short [267] - GenericResultAtLocation [Line: 267]: Unsoundness Warning unspecified type, defaulting to int C: short [267] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.4s, 91 PlacesBefore, 35 PlacesAfterwards, 87 TransitionsBefore, 28 TransitionsAfterwards, 1980 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 63 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 3 ChoiceCompositions, 94 TotalNumberOfCompositions, 6233 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3129, independent: 2966, independent conditional: 0, independent unconditional: 2966, dependent: 163, dependent conditional: 0, dependent unconditional: 163, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1152, independent: 1101, independent conditional: 0, independent unconditional: 1101, dependent: 51, dependent conditional: 0, dependent unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3129, independent: 1865, independent conditional: 0, independent unconditional: 1865, dependent: 112, dependent conditional: 0, dependent unconditional: 112, unknown: 1152, unknown conditional: 0, unknown unconditional: 1152] , Statistics on independence cache: Total cache size (in pairs): 115, Positive cache size: 95, Positive conditional cache size: 0, Positive unconditional cache size: 95, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 718]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 721]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 726]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 726]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 733]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 736]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 741]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 741]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 761]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 761]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 763]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 767]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 767]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 767]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 769]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 17]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 111 locations, 26 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.7s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 20 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 159 IncrementalHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 0 mSDtfsCounter, 159 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=93occurred in iteration=6, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 16 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-26 05:38:55,222 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...