/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-atomic/dekker.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 22:01:07,423 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 22:01:07,476 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 [2023-08-25 22:01:07,481 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 22:01:07,481 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 22:01:07,511 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 22:01:07,511 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 22:01:07,512 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 22:01:07,512 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 22:01:07,513 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 22:01:07,513 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 22:01:07,513 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 22:01:07,514 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 22:01:07,514 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 22:01:07,514 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 22:01:07,515 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 22:01:07,515 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 22:01:07,515 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 22:01:07,515 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 22:01:07,516 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 22:01:07,516 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 22:01:07,516 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 22:01:07,517 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 22:01:07,517 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 22:01:07,518 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 22:01:07,518 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 22:01:07,518 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 22:01:07,518 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 22:01:07,519 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 22:01:07,519 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 22:01:07,519 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 22:01:07,520 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 22:01:07,520 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 22:01:07,521 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 22:01:07,521 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 22:01:07,521 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 22:01:07,823 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 22:01:07,839 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 22:01:07,842 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 22:01:07,843 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 22:01:07,843 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 22:01:07,846 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/dekker.i [2023-08-25 22:01:09,121 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 22:01:09,387 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 22:01:09,388 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/dekker.i [2023-08-25 22:01:09,418 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7719b2aab/767ecd3c29b642d098853bc8e321b35b/FLAGd4cfafe94 [2023-08-25 22:01:09,437 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7719b2aab/767ecd3c29b642d098853bc8e321b35b [2023-08-25 22:01:09,441 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 22:01:09,444 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 22:01:09,446 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 22:01:09,446 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 22:01:09,449 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 22:01:09,450 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 10:01:09" (1/1) ... [2023-08-25 22:01:09,451 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@430ec387 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:01:09, skipping insertion in model container [2023-08-25 22:01:09,451 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 10:01:09" (1/1) ... [2023-08-25 22:01:09,503 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 22:01:09,687 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-25 22:01:09,859 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 22:01:09,869 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 22:01:09,886 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-25 22:01:09,896 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [269] [2023-08-25 22:01:09,898 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [269] [2023-08-25 22:01:09,917 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 22:01:09,941 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 22:01:09,941 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 22:01:09,942 WARN L669 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 22:01:09,948 INFO L206 MainTranslator]: Completed translation [2023-08-25 22:01:09,948 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:01:09 WrapperNode [2023-08-25 22:01:09,948 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 22:01:09,949 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 22:01:09,949 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 22:01:09,949 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 22:01:09,955 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:01:09" (1/1) ... [2023-08-25 22:01:09,970 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:01:09" (1/1) ... [2023-08-25 22:01:09,995 INFO L138 Inliner]: procedures = 172, calls = 62, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 237 [2023-08-25 22:01:09,995 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 22:01:09,996 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 22:01:09,996 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 22:01:09,996 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 22:01:10,003 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:01:09" (1/1) ... [2023-08-25 22:01:10,004 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:01:09" (1/1) ... [2023-08-25 22:01:10,007 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:01:09" (1/1) ... [2023-08-25 22:01:10,007 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:01:09" (1/1) ... [2023-08-25 22:01:10,016 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:01:09" (1/1) ... [2023-08-25 22:01:10,020 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:01:09" (1/1) ... [2023-08-25 22:01:10,021 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:01:09" (1/1) ... [2023-08-25 22:01:10,023 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:01:09" (1/1) ... [2023-08-25 22:01:10,026 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 22:01:10,027 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 22:01:10,027 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 22:01:10,027 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 22:01:10,028 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:01:09" (1/1) ... [2023-08-25 22:01:10,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 22:01:10,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 22:01:10,065 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) [2023-08-25 22:01:10,094 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 [2023-08-25 22:01:10,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 22:01:10,108 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2023-08-25 22:01:10,108 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2023-08-25 22:01:10,108 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-08-25 22:01:10,108 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-08-25 22:01:10,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 22:01:10,108 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-25 22:01:10,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 22:01:10,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 22:01:10,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 22:01:10,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 22:01:10,110 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-25 22:01:10,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 22:01:10,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 22:01:10,112 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 22:01:10,226 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 22:01:10,228 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 22:01:10,541 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 22:01:10,632 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 22:01:10,632 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-08-25 22:01:10,634 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 10:01:10 BoogieIcfgContainer [2023-08-25 22:01:10,634 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 22:01:10,637 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 22:01:10,637 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 22:01:10,640 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 22:01:10,640 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 10:01:09" (1/3) ... [2023-08-25 22:01:10,641 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5978cce3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 10:01:10, skipping insertion in model container [2023-08-25 22:01:10,641 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:01:09" (2/3) ... [2023-08-25 22:01:10,642 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5978cce3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 10:01:10, skipping insertion in model container [2023-08-25 22:01:10,642 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 10:01:10" (3/3) ... [2023-08-25 22:01:10,643 INFO L112 eAbstractionObserver]: Analyzing ICFG dekker.i [2023-08-25 22:01:10,656 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 22:01:10,657 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2023-08-25 22:01:10,657 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 22:01:10,709 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-25 22:01:10,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 162 places, 171 transitions, 358 flow [2023-08-25 22:01:10,792 INFO L124 PetriNetUnfolderBase]: 16/169 cut-off events. [2023-08-25 22:01:10,793 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 22:01:10,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 178 conditions, 169 events. 16/169 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 401 event pairs, 0 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 119. Up to 2 conditions per place. [2023-08-25 22:01:10,799 INFO L82 GeneralOperation]: Start removeDead. Operand has 162 places, 171 transitions, 358 flow [2023-08-25 22:01:10,804 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 151 places, 160 transitions, 329 flow [2023-08-25 22:01:10,807 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 22:01:10,814 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 151 places, 160 transitions, 329 flow [2023-08-25 22:01:10,817 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 151 places, 160 transitions, 329 flow [2023-08-25 22:01:10,817 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 151 places, 160 transitions, 329 flow [2023-08-25 22:01:10,848 INFO L124 PetriNetUnfolderBase]: 16/160 cut-off events. [2023-08-25 22:01:10,848 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 22:01:10,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 160 events. 16/160 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 402 event pairs, 0 based on Foata normal form. 0/114 useless extension candidates. Maximal degree in co-relation 119. Up to 2 conditions per place. [2023-08-25 22:01:10,854 INFO L119 LiptonReduction]: Number of co-enabled transitions 8300 [2023-08-25 22:01:13,933 INFO L134 LiptonReduction]: Checked pairs total: 23357 [2023-08-25 22:01:13,933 INFO L136 LiptonReduction]: Total number of compositions: 133 [2023-08-25 22:01:13,945 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 22:01:13,950 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;@6d6a9e7c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 22:01:13,950 INFO L358 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2023-08-25 22:01:13,952 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 22:01:13,952 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2023-08-25 22:01:13,952 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 22:01:13,952 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 22:01:13,953 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 22:01:13,953 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2023-08-25 22:01:13,957 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 22:01:13,957 INFO L85 PathProgramCache]: Analyzing trace with hash 817, now seen corresponding path program 1 times [2023-08-25 22:01:13,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 22:01:13,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642654040] [2023-08-25 22:01:13,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 22:01:13,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 22:01:14,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 22:01:14,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 22:01:14,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 22:01:14,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642654040] [2023-08-25 22:01:14,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642654040] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 22:01:14,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 22:01:14,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 22:01:14,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885872343] [2023-08-25 22:01:14,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 22:01:14,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 22:01:14,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 22:01:14,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 22:01:14,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 22:01:14,080 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 304 [2023-08-25 22:01:14,082 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 72 transitions, 153 flow. Second operand has 2 states, 2 states have (on average 118.5) internal successors, (237), 2 states have internal predecessors, (237), 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) [2023-08-25 22:01:14,082 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 22:01:14,082 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 304 [2023-08-25 22:01:14,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 22:01:14,251 INFO L124 PetriNetUnfolderBase]: 765/1342 cut-off events. [2023-08-25 22:01:14,252 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2023-08-25 22:01:14,254 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2604 conditions, 1342 events. 765/1342 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 6420 event pairs, 585 based on Foata normal form. 30/1078 useless extension candidates. Maximal degree in co-relation 2460. Up to 1215 conditions per place. [2023-08-25 22:01:14,260 INFO L140 encePairwiseOnDemand]: 279/304 looper letters, 39 selfloop transitions, 0 changer transitions 0/47 dead transitions. [2023-08-25 22:01:14,261 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 47 transitions, 181 flow [2023-08-25 22:01:14,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 22:01:14,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 22:01:14,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 300 transitions. [2023-08-25 22:01:14,272 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4934210526315789 [2023-08-25 22:01:14,272 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 300 transitions. [2023-08-25 22:01:14,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 300 transitions. [2023-08-25 22:01:14,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 22:01:14,276 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 300 transitions. [2023-08-25 22:01:14,278 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 150.0) internal successors, (300), 2 states have internal predecessors, (300), 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) [2023-08-25 22:01:14,281 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 304.0) internal successors, (912), 3 states have internal predecessors, (912), 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) [2023-08-25 22:01:14,282 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 304.0) internal successors, (912), 3 states have internal predecessors, (912), 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) [2023-08-25 22:01:14,283 INFO L175 Difference]: Start difference. First operand has 72 places, 72 transitions, 153 flow. Second operand 2 states and 300 transitions. [2023-08-25 22:01:14,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 47 transitions, 181 flow [2023-08-25 22:01:14,287 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 47 transitions, 176 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-25 22:01:14,288 INFO L231 Difference]: Finished difference. Result has 46 places, 47 transitions, 98 flow [2023-08-25 22:01:14,290 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=304, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=98, PETRI_PLACES=46, PETRI_TRANSITIONS=47} [2023-08-25 22:01:14,292 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -26 predicate places. [2023-08-25 22:01:14,293 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 47 transitions, 98 flow [2023-08-25 22:01:14,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 118.5) internal successors, (237), 2 states have internal predecessors, (237), 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) [2023-08-25 22:01:14,293 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 22:01:14,293 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-25 22:01:14,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 22:01:14,293 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err8ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2023-08-25 22:01:14,294 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 22:01:14,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1986288060, now seen corresponding path program 1 times [2023-08-25 22:01:14,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 22:01:14,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659239354] [2023-08-25 22:01:14,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 22:01:14,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 22:01:14,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 22:01:14,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 22:01:14,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 22:01:14,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659239354] [2023-08-25 22:01:14,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659239354] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 22:01:14,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 22:01:14,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 22:01:14,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245726927] [2023-08-25 22:01:14,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 22:01:14,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 22:01:14,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 22:01:14,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 22:01:14,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 22:01:14,390 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 304 [2023-08-25 22:01:14,390 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 47 transitions, 98 flow. Second operand has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 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) [2023-08-25 22:01:14,390 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 22:01:14,391 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 304 [2023-08-25 22:01:14,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 22:01:14,590 INFO L124 PetriNetUnfolderBase]: 1221/1964 cut-off events. [2023-08-25 22:01:14,590 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 22:01:14,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3966 conditions, 1964 events. 1221/1964 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 8711 event pairs, 853 based on Foata normal form. 0/1520 useless extension candidates. Maximal degree in co-relation 3963. Up to 1757 conditions per place. [2023-08-25 22:01:14,600 INFO L140 encePairwiseOnDemand]: 298/304 looper letters, 67 selfloop transitions, 5 changer transitions 0/72 dead transitions. [2023-08-25 22:01:14,600 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 72 transitions, 294 flow [2023-08-25 22:01:14,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 22:01:14,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 22:01:14,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 385 transitions. [2023-08-25 22:01:14,603 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42214912280701755 [2023-08-25 22:01:14,603 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 385 transitions. [2023-08-25 22:01:14,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 385 transitions. [2023-08-25 22:01:14,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 22:01:14,603 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 385 transitions. [2023-08-25 22:01:14,605 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 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) [2023-08-25 22:01:14,607 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 304.0) internal successors, (1216), 4 states have internal predecessors, (1216), 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) [2023-08-25 22:01:14,608 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 304.0) internal successors, (1216), 4 states have internal predecessors, (1216), 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) [2023-08-25 22:01:14,608 INFO L175 Difference]: Start difference. First operand has 46 places, 47 transitions, 98 flow. Second operand 3 states and 385 transitions. [2023-08-25 22:01:14,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 72 transitions, 294 flow [2023-08-25 22:01:14,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 72 transitions, 294 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 22:01:14,610 INFO L231 Difference]: Finished difference. Result has 50 places, 51 transitions, 136 flow [2023-08-25 22:01:14,610 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=304, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=136, PETRI_PLACES=50, PETRI_TRANSITIONS=51} [2023-08-25 22:01:14,611 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -22 predicate places. [2023-08-25 22:01:14,611 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 51 transitions, 136 flow [2023-08-25 22:01:14,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 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) [2023-08-25 22:01:14,611 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 22:01:14,611 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 22:01:14,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 22:01:14,612 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err8ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2023-08-25 22:01:14,612 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 22:01:14,612 INFO L85 PathProgramCache]: Analyzing trace with hash -329619003, now seen corresponding path program 1 times [2023-08-25 22:01:14,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 22:01:14,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033156674] [2023-08-25 22:01:14,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 22:01:14,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 22:01:14,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 22:01:14,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 22:01:14,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 22:01:14,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033156674] [2023-08-25 22:01:14,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033156674] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 22:01:14,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 22:01:14,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 22:01:14,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418620399] [2023-08-25 22:01:14,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 22:01:14,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 22:01:14,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 22:01:14,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 22:01:14,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 22:01:14,711 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 304 [2023-08-25 22:01:14,712 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 51 transitions, 136 flow. Second operand has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 22:01:14,712 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 22:01:14,712 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 304 [2023-08-25 22:01:14,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 22:01:14,906 INFO L124 PetriNetUnfolderBase]: 1206/1945 cut-off events. [2023-08-25 22:01:14,906 INFO L125 PetriNetUnfolderBase]: For 276/276 co-relation queries the response was YES. [2023-08-25 22:01:14,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4278 conditions, 1945 events. 1206/1945 cut-off events. For 276/276 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 8596 event pairs, 875 based on Foata normal form. 0/1545 useless extension candidates. Maximal degree in co-relation 4273. Up to 1853 conditions per place. [2023-08-25 22:01:14,917 INFO L140 encePairwiseOnDemand]: 299/304 looper letters, 70 selfloop transitions, 6 changer transitions 0/76 dead transitions. [2023-08-25 22:01:14,917 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 76 transitions, 355 flow [2023-08-25 22:01:14,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 22:01:14,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 22:01:14,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 384 transitions. [2023-08-25 22:01:14,919 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42105263157894735 [2023-08-25 22:01:14,919 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 384 transitions. [2023-08-25 22:01:14,919 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 384 transitions. [2023-08-25 22:01:14,919 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 22:01:14,919 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 384 transitions. [2023-08-25 22:01:14,920 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 128.0) internal successors, (384), 3 states have internal predecessors, (384), 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) [2023-08-25 22:01:14,922 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 304.0) internal successors, (1216), 4 states have internal predecessors, (1216), 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) [2023-08-25 22:01:14,923 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 304.0) internal successors, (1216), 4 states have internal predecessors, (1216), 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) [2023-08-25 22:01:14,923 INFO L175 Difference]: Start difference. First operand has 50 places, 51 transitions, 136 flow. Second operand 3 states and 384 transitions. [2023-08-25 22:01:14,923 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 76 transitions, 355 flow [2023-08-25 22:01:14,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 76 transitions, 339 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 22:01:14,927 INFO L231 Difference]: Finished difference. Result has 51 places, 55 transitions, 168 flow [2023-08-25 22:01:14,927 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=304, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=168, PETRI_PLACES=51, PETRI_TRANSITIONS=55} [2023-08-25 22:01:14,928 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -21 predicate places. [2023-08-25 22:01:14,928 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 55 transitions, 168 flow [2023-08-25 22:01:14,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 22:01:14,929 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 22:01:14,929 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 22:01:14,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 22:01:14,929 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err9ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2023-08-25 22:01:14,929 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 22:01:14,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1857323066, now seen corresponding path program 1 times [2023-08-25 22:01:14,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 22:01:14,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024961190] [2023-08-25 22:01:14,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 22:01:14,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 22:01:14,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 22:01:14,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 22:01:14,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 22:01:14,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024961190] [2023-08-25 22:01:14,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024961190] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 22:01:14,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 22:01:14,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 22:01:14,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818197780] [2023-08-25 22:01:14,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 22:01:14,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 22:01:14,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 22:01:14,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 22:01:14,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 22:01:14,969 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 304 [2023-08-25 22:01:14,970 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 55 transitions, 168 flow. Second operand has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 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) [2023-08-25 22:01:14,970 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 22:01:14,970 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 304 [2023-08-25 22:01:14,970 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 22:01:15,220 INFO L124 PetriNetUnfolderBase]: 1162/1903 cut-off events. [2023-08-25 22:01:15,221 INFO L125 PetriNetUnfolderBase]: For 361/361 co-relation queries the response was YES. [2023-08-25 22:01:15,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4399 conditions, 1903 events. 1162/1903 cut-off events. For 361/361 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 8599 event pairs, 420 based on Foata normal form. 0/1567 useless extension candidates. Maximal degree in co-relation 4393. Up to 1118 conditions per place. [2023-08-25 22:01:15,230 INFO L140 encePairwiseOnDemand]: 296/304 looper letters, 91 selfloop transitions, 10 changer transitions 0/101 dead transitions. [2023-08-25 22:01:15,231 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 101 transitions, 497 flow [2023-08-25 22:01:15,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 22:01:15,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 22:01:15,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 410 transitions. [2023-08-25 22:01:15,233 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44956140350877194 [2023-08-25 22:01:15,233 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 410 transitions. [2023-08-25 22:01:15,233 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 410 transitions. [2023-08-25 22:01:15,233 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 22:01:15,233 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 410 transitions. [2023-08-25 22:01:15,234 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 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) [2023-08-25 22:01:15,236 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 304.0) internal successors, (1216), 4 states have internal predecessors, (1216), 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) [2023-08-25 22:01:15,237 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 304.0) internal successors, (1216), 4 states have internal predecessors, (1216), 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) [2023-08-25 22:01:15,237 INFO L175 Difference]: Start difference. First operand has 51 places, 55 transitions, 168 flow. Second operand 3 states and 410 transitions. [2023-08-25 22:01:15,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 101 transitions, 497 flow [2023-08-25 22:01:15,239 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 101 transitions, 489 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 22:01:15,240 INFO L231 Difference]: Finished difference. Result has 54 places, 62 transitions, 252 flow [2023-08-25 22:01:15,241 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=304, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=252, PETRI_PLACES=54, PETRI_TRANSITIONS=62} [2023-08-25 22:01:15,241 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -18 predicate places. [2023-08-25 22:01:15,241 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 62 transitions, 252 flow [2023-08-25 22:01:15,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 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) [2023-08-25 22:01:15,242 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 22:01:15,242 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 22:01:15,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 22:01:15,242 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err10ASSERT_VIOLATIONASSERT === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2023-08-25 22:01:15,243 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 22:01:15,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1742439419, now seen corresponding path program 1 times [2023-08-25 22:01:15,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 22:01:15,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135722137] [2023-08-25 22:01:15,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 22:01:15,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 22:01:15,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 22:01:15,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 22:01:15,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 22:01:15,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135722137] [2023-08-25 22:01:15,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135722137] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 22:01:15,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 22:01:15,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 22:01:15,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124370032] [2023-08-25 22:01:15,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 22:01:15,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 22:01:15,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 22:01:15,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 22:01:15,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 22:01:15,294 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 304 [2023-08-25 22:01:15,294 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 62 transitions, 252 flow. Second operand has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 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) [2023-08-25 22:01:15,295 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 22:01:15,295 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 304 [2023-08-25 22:01:15,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 22:01:15,467 INFO L124 PetriNetUnfolderBase]: 1072/1979 cut-off events. [2023-08-25 22:01:15,468 INFO L125 PetriNetUnfolderBase]: For 1673/1763 co-relation queries the response was YES. [2023-08-25 22:01:15,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5048 conditions, 1979 events. 1072/1979 cut-off events. For 1673/1763 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 11118 event pairs, 404 based on Foata normal form. 18/1728 useless extension candidates. Maximal degree in co-relation 5041. Up to 979 conditions per place. [2023-08-25 22:01:15,480 INFO L140 encePairwiseOnDemand]: 299/304 looper letters, 77 selfloop transitions, 3 changer transitions 2/95 dead transitions. [2023-08-25 22:01:15,480 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 95 transitions, 567 flow [2023-08-25 22:01:15,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 22:01:15,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 22:01:15,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 397 transitions. [2023-08-25 22:01:15,482 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43530701754385964 [2023-08-25 22:01:15,482 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 397 transitions. [2023-08-25 22:01:15,482 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 397 transitions. [2023-08-25 22:01:15,482 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 22:01:15,482 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 397 transitions. [2023-08-25 22:01:15,483 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 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) [2023-08-25 22:01:15,485 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 304.0) internal successors, (1216), 4 states have internal predecessors, (1216), 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) [2023-08-25 22:01:15,486 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 304.0) internal successors, (1216), 4 states have internal predecessors, (1216), 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) [2023-08-25 22:01:15,486 INFO L175 Difference]: Start difference. First operand has 54 places, 62 transitions, 252 flow. Second operand 3 states and 397 transitions. [2023-08-25 22:01:15,486 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 95 transitions, 567 flow [2023-08-25 22:01:15,490 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 95 transitions, 535 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 22:01:15,491 INFO L231 Difference]: Finished difference. Result has 56 places, 63 transitions, 252 flow [2023-08-25 22:01:15,491 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=304, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=252, PETRI_PLACES=56, PETRI_TRANSITIONS=63} [2023-08-25 22:01:15,492 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -16 predicate places. [2023-08-25 22:01:15,492 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 63 transitions, 252 flow [2023-08-25 22:01:15,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 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) [2023-08-25 22:01:15,492 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 22:01:15,493 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 22:01:15,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 22:01:15,493 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr2Err10ASSERT_VIOLATIONASSERT === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2023-08-25 22:01:15,493 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 22:01:15,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1380892669, now seen corresponding path program 1 times [2023-08-25 22:01:15,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 22:01:15,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032655315] [2023-08-25 22:01:15,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 22:01:15,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 22:01:15,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 22:01:15,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 22:01:15,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 22:01:15,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032655315] [2023-08-25 22:01:15,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032655315] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 22:01:15,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 22:01:15,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 22:01:15,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134352595] [2023-08-25 22:01:15,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 22:01:15,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 22:01:15,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 22:01:15,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 22:01:15,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 22:01:15,534 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 304 [2023-08-25 22:01:15,534 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 63 transitions, 252 flow. Second operand has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 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) [2023-08-25 22:01:15,534 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 22:01:15,534 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 304 [2023-08-25 22:01:15,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 22:01:15,709 INFO L124 PetriNetUnfolderBase]: 967/1798 cut-off events. [2023-08-25 22:01:15,710 INFO L125 PetriNetUnfolderBase]: For 1215/1301 co-relation queries the response was YES. [2023-08-25 22:01:15,713 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4601 conditions, 1798 events. 967/1798 cut-off events. For 1215/1301 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 9898 event pairs, 394 based on Foata normal form. 82/1731 useless extension candidates. Maximal degree in co-relation 4593. Up to 978 conditions per place. [2023-08-25 22:01:15,720 INFO L140 encePairwiseOnDemand]: 300/304 looper letters, 72 selfloop transitions, 2 changer transitions 6/93 dead transitions. [2023-08-25 22:01:15,720 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 93 transitions, 545 flow [2023-08-25 22:01:15,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 22:01:15,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 22:01:15,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 395 transitions. [2023-08-25 22:01:15,722 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4331140350877193 [2023-08-25 22:01:15,722 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 395 transitions. [2023-08-25 22:01:15,722 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 395 transitions. [2023-08-25 22:01:15,722 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 22:01:15,723 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 395 transitions. [2023-08-25 22:01:15,724 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 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) [2023-08-25 22:01:15,725 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 304.0) internal successors, (1216), 4 states have internal predecessors, (1216), 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) [2023-08-25 22:01:15,726 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 304.0) internal successors, (1216), 4 states have internal predecessors, (1216), 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) [2023-08-25 22:01:15,726 INFO L175 Difference]: Start difference. First operand has 56 places, 63 transitions, 252 flow. Second operand 3 states and 395 transitions. [2023-08-25 22:01:15,726 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 93 transitions, 545 flow [2023-08-25 22:01:15,728 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 93 transitions, 539 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 22:01:15,730 INFO L231 Difference]: Finished difference. Result has 57 places, 63 transitions, 256 flow [2023-08-25 22:01:15,730 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=304, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=256, PETRI_PLACES=57, PETRI_TRANSITIONS=63} [2023-08-25 22:01:15,730 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -15 predicate places. [2023-08-25 22:01:15,731 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 63 transitions, 256 flow [2023-08-25 22:01:15,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 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) [2023-08-25 22:01:15,731 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 22:01:15,731 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 22:01:15,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 22:01:15,732 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err8ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2023-08-25 22:01:15,732 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 22:01:15,732 INFO L85 PathProgramCache]: Analyzing trace with hash 48567286, now seen corresponding path program 1 times [2023-08-25 22:01:15,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 22:01:15,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165154465] [2023-08-25 22:01:15,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 22:01:15,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 22:01:15,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 22:01:15,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 22:01:15,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 22:01:15,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165154465] [2023-08-25 22:01:15,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165154465] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 22:01:15,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 22:01:15,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 22:01:15,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51960956] [2023-08-25 22:01:15,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 22:01:15,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 22:01:15,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 22:01:15,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 22:01:15,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 22:01:15,783 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 304 [2023-08-25 22:01:15,783 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 63 transitions, 256 flow. Second operand has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 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) [2023-08-25 22:01:15,783 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 22:01:15,784 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 304 [2023-08-25 22:01:15,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 22:01:16,027 INFO L124 PetriNetUnfolderBase]: 1226/2175 cut-off events. [2023-08-25 22:01:16,027 INFO L125 PetriNetUnfolderBase]: For 1584/1680 co-relation queries the response was YES. [2023-08-25 22:01:16,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5507 conditions, 2175 events. 1226/2175 cut-off events. For 1584/1680 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 12113 event pairs, 242 based on Foata normal form. 34/1988 useless extension candidates. Maximal degree in co-relation 5498. Up to 1080 conditions per place. [2023-08-25 22:01:16,041 INFO L140 encePairwiseOnDemand]: 297/304 looper letters, 83 selfloop transitions, 9 changer transitions 11/116 dead transitions. [2023-08-25 22:01:16,041 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 116 transitions, 612 flow [2023-08-25 22:01:16,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 22:01:16,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 22:01:16,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 667 transitions. [2023-08-25 22:01:16,077 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4388157894736842 [2023-08-25 22:01:16,077 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 667 transitions. [2023-08-25 22:01:16,077 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 667 transitions. [2023-08-25 22:01:16,078 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 22:01:16,078 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 667 transitions. [2023-08-25 22:01:16,079 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 133.4) internal successors, (667), 5 states have internal predecessors, (667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 22:01:16,082 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 304.0) internal successors, (1824), 6 states have internal predecessors, (1824), 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) [2023-08-25 22:01:16,083 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 304.0) internal successors, (1824), 6 states have internal predecessors, (1824), 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) [2023-08-25 22:01:16,083 INFO L175 Difference]: Start difference. First operand has 57 places, 63 transitions, 256 flow. Second operand 5 states and 667 transitions. [2023-08-25 22:01:16,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 116 transitions, 612 flow [2023-08-25 22:01:16,085 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 116 transitions, 609 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 22:01:16,087 INFO L231 Difference]: Finished difference. Result has 63 places, 68 transitions, 305 flow [2023-08-25 22:01:16,087 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=304, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=305, PETRI_PLACES=63, PETRI_TRANSITIONS=68} [2023-08-25 22:01:16,088 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -9 predicate places. [2023-08-25 22:01:16,088 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 68 transitions, 305 flow [2023-08-25 22:01:16,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 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) [2023-08-25 22:01:16,088 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 22:01:16,089 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 22:01:16,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 22:01:16,089 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err8ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2023-08-25 22:01:16,089 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 22:01:16,089 INFO L85 PathProgramCache]: Analyzing trace with hash 22246344, now seen corresponding path program 2 times [2023-08-25 22:01:16,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 22:01:16,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461380756] [2023-08-25 22:01:16,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 22:01:16,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 22:01:16,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 22:01:16,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 22:01:16,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 22:01:16,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461380756] [2023-08-25 22:01:16,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461380756] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 22:01:16,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 22:01:16,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 22:01:16,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391845809] [2023-08-25 22:01:16,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 22:01:16,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 22:01:16,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 22:01:16,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 22:01:16,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 22:01:16,135 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 304 [2023-08-25 22:01:16,135 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 68 transitions, 305 flow. Second operand has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 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) [2023-08-25 22:01:16,136 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 22:01:16,136 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 304 [2023-08-25 22:01:16,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 22:01:16,370 INFO L124 PetriNetUnfolderBase]: 1060/1689 cut-off events. [2023-08-25 22:01:16,371 INFO L125 PetriNetUnfolderBase]: For 1060/1072 co-relation queries the response was YES. [2023-08-25 22:01:16,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4310 conditions, 1689 events. 1060/1689 cut-off events. For 1060/1072 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 7516 event pairs, 222 based on Foata normal form. 34/1529 useless extension candidates. Maximal degree in co-relation 4298. Up to 591 conditions per place. [2023-08-25 22:01:16,376 INFO L140 encePairwiseOnDemand]: 297/304 looper letters, 0 selfloop transitions, 0 changer transitions 106/106 dead transitions. [2023-08-25 22:01:16,376 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 106 transitions, 619 flow [2023-08-25 22:01:16,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 22:01:16,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 22:01:16,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 662 transitions. [2023-08-25 22:01:16,379 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4355263157894737 [2023-08-25 22:01:16,379 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 662 transitions. [2023-08-25 22:01:16,379 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 662 transitions. [2023-08-25 22:01:16,379 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 22:01:16,379 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 662 transitions. [2023-08-25 22:01:16,381 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 132.4) internal successors, (662), 5 states have internal predecessors, (662), 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) [2023-08-25 22:01:16,383 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 304.0) internal successors, (1824), 6 states have internal predecessors, (1824), 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) [2023-08-25 22:01:16,384 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 304.0) internal successors, (1824), 6 states have internal predecessors, (1824), 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) [2023-08-25 22:01:16,384 INFO L175 Difference]: Start difference. First operand has 63 places, 68 transitions, 305 flow. Second operand 5 states and 662 transitions. [2023-08-25 22:01:16,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 106 transitions, 619 flow [2023-08-25 22:01:16,390 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 106 transitions, 567 flow, removed 16 selfloop flow, removed 4 redundant places. [2023-08-25 22:01:16,391 INFO L231 Difference]: Finished difference. Result has 57 places, 0 transitions, 0 flow [2023-08-25 22:01:16,392 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=304, PETRI_DIFFERENCE_MINUEND_FLOW=167, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=57, PETRI_TRANSITIONS=0} [2023-08-25 22:01:16,392 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -15 predicate places. [2023-08-25 22:01:16,392 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 0 transitions, 0 flow [2023-08-25 22:01:16,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 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) [2023-08-25 22:01:16,395 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONDATA_RACE (57 of 58 remaining) [2023-08-25 22:01:16,395 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err1ASSERT_VIOLATIONDATA_RACE (56 of 58 remaining) [2023-08-25 22:01:16,395 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err2ASSERT_VIOLATIONDATA_RACE (55 of 58 remaining) [2023-08-25 22:01:16,396 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err3ASSERT_VIOLATIONDATA_RACE (54 of 58 remaining) [2023-08-25 22:01:16,396 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err7ASSERT_VIOLATIONDATA_RACE (53 of 58 remaining) [2023-08-25 22:01:16,396 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err4ASSERT_VIOLATIONDATA_RACE (52 of 58 remaining) [2023-08-25 22:01:16,396 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err8ASSERT_VIOLATIONDATA_RACE (51 of 58 remaining) [2023-08-25 22:01:16,396 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err5ASSERT_VIOLATIONDATA_RACE (50 of 58 remaining) [2023-08-25 22:01:16,396 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err6ASSERT_VIOLATIONDATA_RACE (49 of 58 remaining) [2023-08-25 22:01:16,397 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err9ASSERT_VIOLATIONDATA_RACE (48 of 58 remaining) [2023-08-25 22:01:16,397 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err11ASSERT_VIOLATIONDATA_RACE (47 of 58 remaining) [2023-08-25 22:01:16,397 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err12ASSERT_VIOLATIONDATA_RACE (46 of 58 remaining) [2023-08-25 22:01:16,397 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err10ASSERT_VIOLATIONASSERT (45 of 58 remaining) [2023-08-25 22:01:16,397 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (44 of 58 remaining) [2023-08-25 22:01:16,397 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (43 of 58 remaining) [2023-08-25 22:01:16,398 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err2ASSERT_VIOLATIONDATA_RACE (42 of 58 remaining) [2023-08-25 22:01:16,398 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err3ASSERT_VIOLATIONDATA_RACE (41 of 58 remaining) [2023-08-25 22:01:16,398 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err7ASSERT_VIOLATIONDATA_RACE (40 of 58 remaining) [2023-08-25 22:01:16,398 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err4ASSERT_VIOLATIONDATA_RACE (39 of 58 remaining) [2023-08-25 22:01:16,398 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err8ASSERT_VIOLATIONDATA_RACE (38 of 58 remaining) [2023-08-25 22:01:16,398 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err5ASSERT_VIOLATIONDATA_RACE (37 of 58 remaining) [2023-08-25 22:01:16,399 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err6ASSERT_VIOLATIONDATA_RACE (36 of 58 remaining) [2023-08-25 22:01:16,399 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err9ASSERT_VIOLATIONDATA_RACE (35 of 58 remaining) [2023-08-25 22:01:16,399 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err11ASSERT_VIOLATIONDATA_RACE (34 of 58 remaining) [2023-08-25 22:01:16,399 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err12ASSERT_VIOLATIONDATA_RACE (33 of 58 remaining) [2023-08-25 22:01:16,399 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err10ASSERT_VIOLATIONASSERT (32 of 58 remaining) [2023-08-25 22:01:16,399 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (31 of 58 remaining) [2023-08-25 22:01:16,400 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (30 of 58 remaining) [2023-08-25 22:01:16,400 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (29 of 58 remaining) [2023-08-25 22:01:16,400 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (28 of 58 remaining) [2023-08-25 22:01:16,400 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (27 of 58 remaining) [2023-08-25 22:01:16,400 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 58 remaining) [2023-08-25 22:01:16,400 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONDATA_RACE (25 of 58 remaining) [2023-08-25 22:01:16,400 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err1ASSERT_VIOLATIONDATA_RACE (24 of 58 remaining) [2023-08-25 22:01:16,401 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err2ASSERT_VIOLATIONDATA_RACE (23 of 58 remaining) [2023-08-25 22:01:16,401 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err3ASSERT_VIOLATIONDATA_RACE (22 of 58 remaining) [2023-08-25 22:01:16,401 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err7ASSERT_VIOLATIONDATA_RACE (21 of 58 remaining) [2023-08-25 22:01:16,401 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err4ASSERT_VIOLATIONDATA_RACE (20 of 58 remaining) [2023-08-25 22:01:16,401 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err8ASSERT_VIOLATIONDATA_RACE (19 of 58 remaining) [2023-08-25 22:01:16,401 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err5ASSERT_VIOLATIONDATA_RACE (18 of 58 remaining) [2023-08-25 22:01:16,402 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err6ASSERT_VIOLATIONDATA_RACE (17 of 58 remaining) [2023-08-25 22:01:16,402 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err9ASSERT_VIOLATIONDATA_RACE (16 of 58 remaining) [2023-08-25 22:01:16,402 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err11ASSERT_VIOLATIONDATA_RACE (15 of 58 remaining) [2023-08-25 22:01:16,402 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err12ASSERT_VIOLATIONDATA_RACE (14 of 58 remaining) [2023-08-25 22:01:16,402 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err10ASSERT_VIOLATIONASSERT (13 of 58 remaining) [2023-08-25 22:01:16,402 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (12 of 58 remaining) [2023-08-25 22:01:16,402 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (11 of 58 remaining) [2023-08-25 22:01:16,403 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err2ASSERT_VIOLATIONDATA_RACE (10 of 58 remaining) [2023-08-25 22:01:16,403 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err3ASSERT_VIOLATIONDATA_RACE (9 of 58 remaining) [2023-08-25 22:01:16,403 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err7ASSERT_VIOLATIONDATA_RACE (8 of 58 remaining) [2023-08-25 22:01:16,403 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err4ASSERT_VIOLATIONDATA_RACE (7 of 58 remaining) [2023-08-25 22:01:16,403 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err8ASSERT_VIOLATIONDATA_RACE (6 of 58 remaining) [2023-08-25 22:01:16,403 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err5ASSERT_VIOLATIONDATA_RACE (5 of 58 remaining) [2023-08-25 22:01:16,403 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err6ASSERT_VIOLATIONDATA_RACE (4 of 58 remaining) [2023-08-25 22:01:16,404 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err9ASSERT_VIOLATIONDATA_RACE (3 of 58 remaining) [2023-08-25 22:01:16,404 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err11ASSERT_VIOLATIONDATA_RACE (2 of 58 remaining) [2023-08-25 22:01:16,404 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err12ASSERT_VIOLATIONDATA_RACE (1 of 58 remaining) [2023-08-25 22:01:16,404 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err10ASSERT_VIOLATIONASSERT (0 of 58 remaining) [2023-08-25 22:01:16,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 22:01:16,405 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1] [2023-08-25 22:01:16,410 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 22:01:16,410 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 22:01:16,412 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 10:01:16 BasicIcfg [2023-08-25 22:01:16,413 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 22:01:16,413 INFO L158 Benchmark]: Toolchain (without parser) took 6969.25ms. Allocated memory was 398.5MB in the beginning and 637.5MB in the end (delta: 239.1MB). Free memory was 372.8MB in the beginning and 506.6MB in the end (delta: -133.8MB). Peak memory consumption was 107.2MB. Max. memory is 16.0GB. [2023-08-25 22:01:16,413 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 398.5MB. Free memory is still 376.0MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 22:01:16,414 INFO L158 Benchmark]: CACSL2BoogieTranslator took 502.78ms. Allocated memory is still 398.5MB. Free memory was 372.8MB in the beginning and 351.8MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-08-25 22:01:16,414 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.27ms. Allocated memory is still 398.5MB. Free memory was 351.8MB in the beginning and 349.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 22:01:16,414 INFO L158 Benchmark]: Boogie Preprocessor took 29.81ms. Allocated memory is still 398.5MB. Free memory was 349.7MB in the beginning and 347.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 22:01:16,414 INFO L158 Benchmark]: RCFGBuilder took 607.95ms. Allocated memory is still 398.5MB. Free memory was 347.6MB in the beginning and 321.6MB in the end (delta: 26.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. [2023-08-25 22:01:16,415 INFO L158 Benchmark]: TraceAbstraction took 5775.66ms. Allocated memory was 398.5MB in the beginning and 637.5MB in the end (delta: 239.1MB). Free memory was 320.3MB in the beginning and 506.6MB in the end (delta: -186.2MB). Peak memory consumption was 54.7MB. Max. memory is 16.0GB. [2023-08-25 22:01:16,416 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 398.5MB. Free memory is still 376.0MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 502.78ms. Allocated memory is still 398.5MB. Free memory was 372.8MB in the beginning and 351.8MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 46.27ms. Allocated memory is still 398.5MB. Free memory was 351.8MB in the beginning and 349.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 29.81ms. Allocated memory is still 398.5MB. Free memory was 349.7MB in the beginning and 347.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 607.95ms. Allocated memory is still 398.5MB. Free memory was 347.6MB in the beginning and 321.6MB in the end (delta: 26.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. * TraceAbstraction took 5775.66ms. Allocated memory was 398.5MB in the beginning and 637.5MB in the end (delta: 239.1MB). Free memory was 320.3MB in the beginning and 506.6MB in the end (delta: -186.2MB). Peak memory consumption was 54.7MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 269]: Unsoundness Warning unspecified type, defaulting to int C: short [269] - GenericResultAtLocation [Line: 269]: Unsoundness Warning unspecified type, defaulting to int C: short [269] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.1s, 151 PlacesBefore, 72 PlacesAfterwards, 160 TransitionsBefore, 72 TransitionsAfterwards, 8300 CoEnabledTransitionPairs, 6 FixpointIterations, 36 TrivialSequentialCompositions, 74 ConcurrentSequentialCompositions, 7 TrivialYvCompositions, 7 ConcurrentYvCompositions, 9 ChoiceCompositions, 133 TotalNumberOfCompositions, 23357 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 11253, independent: 10819, independent conditional: 0, independent unconditional: 10819, dependent: 434, dependent conditional: 0, dependent unconditional: 434, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 4100, independent: 4019, independent conditional: 0, independent unconditional: 4019, dependent: 81, dependent conditional: 0, dependent unconditional: 81, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 11253, independent: 6800, independent conditional: 0, independent unconditional: 6800, dependent: 353, dependent conditional: 0, dependent unconditional: 353, unknown: 4100, unknown conditional: 0, unknown unconditional: 4100] , Statistics on independence cache: Total cache size (in pairs): 632, Positive cache size: 589, Positive conditional cache size: 0, Positive unconditional cache size: 589, Negative cache size: 43, Negative conditional cache size: 0, Negative unconditional cache size: 43, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 750]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 753]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 757]: 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: 776]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 764]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 779]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 768]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 772]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 780]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 782]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 785]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 16]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 709]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 712]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 716]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 720]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 735]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 723]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 738]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 727]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 731]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 739]: 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: 744]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 16]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 791]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 791]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 794]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 795]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 246 locations, 58 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: 5.7s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 241 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 241 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 881 IncrementalHoareTripleChecker+Invalid, 893 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 22 mSDtfsCounter, 881 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=305occurred in iteration=7, InterpolantAutomatonStates: 27, 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, 0.3s InterpolantComputationTime, 74 NumberOfCodeBlocks, 74 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 66 ConstructedInterpolants, 0 QuantifiedInterpolants, 114 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 30 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 22:01:16,436 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...