/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 14:35:37,935 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 14:35:38,005 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 14:35:38,009 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 14:35:38,010 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 14:35:38,033 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 14:35:38,034 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 14:35:38,034 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 14:35:38,035 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 14:35:38,038 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 14:35:38,038 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 14:35:38,038 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 14:35:38,038 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 14:35:38,039 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 14:35:38,039 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 14:35:38,040 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 14:35:38,040 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 14:35:38,040 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 14:35:38,040 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 14:35:38,040 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 14:35:38,040 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 14:35:38,041 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 14:35:38,041 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 14:35:38,042 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 14:35:38,042 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 14:35:38,042 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 14:35:38,042 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 14:35:38,042 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 14:35:38,042 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 14:35:38,043 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 14:35:38,043 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 14:35:38,043 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 14:35:38,044 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 14:35:38,044 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 14:35:38,044 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 14:35:38,044 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 14:35:38,299 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 14:35:38,311 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 14:35:38,313 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 14:35:38,313 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 14:35:38,313 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 14:35:38,314 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-25 14:35:39,398 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 14:35:39,602 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 14:35:39,603 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-25 14:35:39,613 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d437bc337/39216465d4fe4b709f11f2fe75562eca/FLAG74e2dea77 [2023-08-25 14:35:39,632 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d437bc337/39216465d4fe4b709f11f2fe75562eca [2023-08-25 14:35:39,633 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 14:35:39,634 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 14:35:39,635 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 14:35:39,635 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 14:35:39,637 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 14:35:39,637 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 02:35:39" (1/1) ... [2023-08-25 14:35:39,637 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b02ce5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:35:39, skipping insertion in model container [2023-08-25 14:35:39,638 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 02:35:39" (1/1) ... [2023-08-25 14:35:39,665 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 14:35:39,907 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 14:35:39,914 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 14:35:39,938 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-25 14:35:39,939 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-25 14:35:39,957 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 14:35:39,984 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 14:35:39,984 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 14:35:39,988 INFO L206 MainTranslator]: Completed translation [2023-08-25 14:35:39,988 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:35:39 WrapperNode [2023-08-25 14:35:39,988 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 14:35:39,989 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 14:35:39,989 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 14:35:39,989 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 14:35:39,993 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:35:39" (1/1) ... [2023-08-25 14:35:40,016 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:35:39" (1/1) ... [2023-08-25 14:35:40,034 INFO L138 Inliner]: procedures = 176, calls = 52, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 101 [2023-08-25 14:35:40,034 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 14:35:40,035 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 14:35:40,035 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 14:35:40,035 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 14:35:40,041 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:35:39" (1/1) ... [2023-08-25 14:35:40,041 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:35:39" (1/1) ... [2023-08-25 14:35:40,054 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:35:39" (1/1) ... [2023-08-25 14:35:40,054 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:35:39" (1/1) ... [2023-08-25 14:35:40,057 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:35:39" (1/1) ... [2023-08-25 14:35:40,058 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:35:39" (1/1) ... [2023-08-25 14:35:40,059 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:35:39" (1/1) ... [2023-08-25 14:35:40,060 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:35:39" (1/1) ... [2023-08-25 14:35:40,062 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 14:35:40,062 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 14:35:40,062 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 14:35:40,062 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 14:35:40,063 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:35:39" (1/1) ... [2023-08-25 14:35:40,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 14:35:40,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 14:35:40,095 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 14:35:40,111 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 14:35:40,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 14:35:40,129 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-25 14:35:40,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 14:35:40,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 14:35:40,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 14:35:40,129 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-25 14:35:40,130 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-25 14:35:40,130 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-25 14:35:40,130 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-25 14:35:40,130 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-25 14:35:40,130 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-25 14:35:40,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 14:35:40,130 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-25 14:35:40,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 14:35:40,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 14:35:40,132 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 14:35:40,249 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 14:35:40,250 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 14:35:40,414 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 14:35:40,537 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 14:35:40,538 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 14:35:40,539 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 02:35:40 BoogieIcfgContainer [2023-08-25 14:35:40,540 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 14:35:40,546 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 14:35:40,546 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 14:35:40,548 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 14:35:40,548 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 02:35:39" (1/3) ... [2023-08-25 14:35:40,549 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e39e9b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 02:35:40, skipping insertion in model container [2023-08-25 14:35:40,549 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:35:39" (2/3) ... [2023-08-25 14:35:40,549 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e39e9b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 02:35:40, skipping insertion in model container [2023-08-25 14:35:40,549 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 02:35:40" (3/3) ... [2023-08-25 14:35:40,550 INFO L112 eAbstractionObserver]: Analyzing ICFG safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-25 14:35:40,561 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 14:35:40,561 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-08-25 14:35:40,561 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 14:35:40,600 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 14:35:40,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 119 places, 112 transitions, 239 flow [2023-08-25 14:35:40,652 INFO L124 PetriNetUnfolderBase]: 3/109 cut-off events. [2023-08-25 14:35:40,652 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 14:35:40,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 109 events. 3/109 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 129 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 92. Up to 2 conditions per place. [2023-08-25 14:35:40,656 INFO L82 GeneralOperation]: Start removeDead. Operand has 119 places, 112 transitions, 239 flow [2023-08-25 14:35:40,661 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 116 places, 109 transitions, 227 flow [2023-08-25 14:35:40,664 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 14:35:40,670 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 116 places, 109 transitions, 227 flow [2023-08-25 14:35:40,675 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 116 places, 109 transitions, 227 flow [2023-08-25 14:35:40,676 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 116 places, 109 transitions, 227 flow [2023-08-25 14:35:40,693 INFO L124 PetriNetUnfolderBase]: 3/109 cut-off events. [2023-08-25 14:35:40,693 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 14:35:40,694 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 109 events. 3/109 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 131 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 92. Up to 2 conditions per place. [2023-08-25 14:35:40,695 INFO L119 LiptonReduction]: Number of co-enabled transitions 3696 [2023-08-25 14:35:43,701 INFO L134 LiptonReduction]: Checked pairs total: 11176 [2023-08-25 14:35:43,701 INFO L136 LiptonReduction]: Total number of compositions: 96 [2023-08-25 14:35:43,709 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 14:35:43,713 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;@5175dc94, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 14:35:43,713 INFO L358 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2023-08-25 14:35:43,715 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 14:35:43,715 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-08-25 14:35:43,715 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 14:35:43,716 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 14:35:43,716 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-25 14:35:43,716 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err1ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-25 14:35:43,719 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 14:35:43,719 INFO L85 PathProgramCache]: Analyzing trace with hash 561106, now seen corresponding path program 1 times [2023-08-25 14:35:43,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 14:35:43,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094743593] [2023-08-25 14:35:43,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 14:35:43,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 14:35:43,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 14:35:43,813 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 14:35:43,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 14:35:43,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094743593] [2023-08-25 14:35:43,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094743593] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 14:35:43,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 14:35:43,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 14:35:43,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811681385] [2023-08-25 14:35:43,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 14:35:43,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 14:35:43,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 14:35:43,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 14:35:43,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 14:35:43,836 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 208 [2023-08-25 14:35:43,837 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 38 transitions, 85 flow. Second operand has 2 states, 2 states have (on average 77.5) internal successors, (155), 2 states have internal predecessors, (155), 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 14:35:43,837 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 14:35:43,837 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 208 [2023-08-25 14:35:43,837 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 14:35:43,927 INFO L124 PetriNetUnfolderBase]: 423/656 cut-off events. [2023-08-25 14:35:43,927 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-25 14:35:43,928 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1359 conditions, 656 events. 423/656 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2340 event pairs, 423 based on Foata normal form. 0/608 useless extension candidates. Maximal degree in co-relation 1348. Up to 657 conditions per place. [2023-08-25 14:35:43,931 INFO L140 encePairwiseOnDemand]: 187/208 looper letters, 16 selfloop transitions, 0 changer transitions 1/17 dead transitions. [2023-08-25 14:35:43,931 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 17 transitions, 77 flow [2023-08-25 14:35:43,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 14:35:43,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 14:35:43,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 190 transitions. [2023-08-25 14:35:43,939 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4567307692307692 [2023-08-25 14:35:43,939 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 190 transitions. [2023-08-25 14:35:43,940 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 190 transitions. [2023-08-25 14:35:43,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 14:35:43,942 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 190 transitions. [2023-08-25 14:35:43,943 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 95.0) internal successors, (190), 2 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:35:43,945 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 208.0) internal successors, (624), 3 states have internal predecessors, (624), 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 14:35:43,946 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 208.0) internal successors, (624), 3 states have internal predecessors, (624), 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 14:35:43,947 INFO L175 Difference]: Start difference. First operand has 48 places, 38 transitions, 85 flow. Second operand 2 states and 190 transitions. [2023-08-25 14:35:43,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 17 transitions, 77 flow [2023-08-25 14:35:43,948 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 17 transitions, 74 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-25 14:35:43,949 INFO L231 Difference]: Finished difference. Result has 25 places, 16 transitions, 38 flow [2023-08-25 14:35:43,950 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=208, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=38, PETRI_PLACES=25, PETRI_TRANSITIONS=16} [2023-08-25 14:35:43,952 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -23 predicate places. [2023-08-25 14:35:43,952 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 16 transitions, 38 flow [2023-08-25 14:35:43,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 77.5) internal successors, (155), 2 states have internal predecessors, (155), 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 14:35:43,953 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 14:35:43,953 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 14:35:43,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 14:35:43,953 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-25 14:35:43,953 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 14:35:43,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1485399947, now seen corresponding path program 1 times [2023-08-25 14:35:43,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 14:35:43,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998942966] [2023-08-25 14:35:43,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 14:35:43,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 14:35:43,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 14:35:44,080 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 14:35:44,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 14:35:44,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998942966] [2023-08-25 14:35:44,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998942966] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 14:35:44,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 14:35:44,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 14:35:44,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035680580] [2023-08-25 14:35:44,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 14:35:44,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 14:35:44,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 14:35:44,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 14:35:44,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 14:35:44,083 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 208 [2023-08-25 14:35:44,083 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 16 transitions, 38 flow. Second operand has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 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 14:35:44,083 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 14:35:44,083 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 208 [2023-08-25 14:35:44,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 14:35:44,147 INFO L124 PetriNetUnfolderBase]: 297/474 cut-off events. [2023-08-25 14:35:44,147 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 14:35:44,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 993 conditions, 474 events. 297/474 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1606 event pairs, 91 based on Foata normal form. 8/482 useless extension candidates. Maximal degree in co-relation 990. Up to 395 conditions per place. [2023-08-25 14:35:44,151 INFO L140 encePairwiseOnDemand]: 204/208 looper letters, 22 selfloop transitions, 3 changer transitions 0/25 dead transitions. [2023-08-25 14:35:44,151 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 25 transitions, 108 flow [2023-08-25 14:35:44,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 14:35:44,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 14:35:44,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 251 transitions. [2023-08-25 14:35:44,157 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40224358974358976 [2023-08-25 14:35:44,157 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 251 transitions. [2023-08-25 14:35:44,157 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 251 transitions. [2023-08-25 14:35:44,159 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 14:35:44,159 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 251 transitions. [2023-08-25 14:35:44,160 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:35:44,162 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 208.0) internal successors, (832), 4 states have internal predecessors, (832), 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 14:35:44,163 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 208.0) internal successors, (832), 4 states have internal predecessors, (832), 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 14:35:44,163 INFO L175 Difference]: Start difference. First operand has 25 places, 16 transitions, 38 flow. Second operand 3 states and 251 transitions. [2023-08-25 14:35:44,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 25 transitions, 108 flow [2023-08-25 14:35:44,163 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 25 transitions, 108 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 14:35:44,164 INFO L231 Difference]: Finished difference. Result has 27 places, 18 transitions, 57 flow [2023-08-25 14:35:44,164 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=208, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=57, PETRI_PLACES=27, PETRI_TRANSITIONS=18} [2023-08-25 14:35:44,165 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -21 predicate places. [2023-08-25 14:35:44,166 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 18 transitions, 57 flow [2023-08-25 14:35:44,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 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 14:35:44,168 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 14:35:44,168 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 14:35:44,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 14:35:44,172 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-25 14:35:44,173 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 14:35:44,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1197240423, now seen corresponding path program 1 times [2023-08-25 14:35:44,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 14:35:44,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138357595] [2023-08-25 14:35:44,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 14:35:44,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 14:35:44,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 14:35:44,264 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 14:35:44,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 14:35:44,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138357595] [2023-08-25 14:35:44,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138357595] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 14:35:44,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 14:35:44,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 14:35:44,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007736450] [2023-08-25 14:35:44,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 14:35:44,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 14:35:44,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 14:35:44,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 14:35:44,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 14:35:44,269 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 208 [2023-08-25 14:35:44,269 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 18 transitions, 57 flow. Second operand has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:35:44,269 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 14:35:44,269 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 208 [2023-08-25 14:35:44,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 14:35:44,353 INFO L124 PetriNetUnfolderBase]: 279/448 cut-off events. [2023-08-25 14:35:44,353 INFO L125 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES. [2023-08-25 14:35:44,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1088 conditions, 448 events. 279/448 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1549 event pairs, 79 based on Foata normal form. 8/456 useless extension candidates. Maximal degree in co-relation 1083. Up to 373 conditions per place. [2023-08-25 14:35:44,355 INFO L140 encePairwiseOnDemand]: 205/208 looper letters, 24 selfloop transitions, 2 changer transitions 0/26 dead transitions. [2023-08-25 14:35:44,356 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 26 transitions, 130 flow [2023-08-25 14:35:44,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 14:35:44,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 14:35:44,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 250 transitions. [2023-08-25 14:35:44,357 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40064102564102566 [2023-08-25 14:35:44,357 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 250 transitions. [2023-08-25 14:35:44,357 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 250 transitions. [2023-08-25 14:35:44,357 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 14:35:44,357 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 250 transitions. [2023-08-25 14:35:44,357 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 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 14:35:44,358 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 208.0) internal successors, (832), 4 states have internal predecessors, (832), 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 14:35:44,359 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 208.0) internal successors, (832), 4 states have internal predecessors, (832), 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 14:35:44,359 INFO L175 Difference]: Start difference. First operand has 27 places, 18 transitions, 57 flow. Second operand 3 states and 250 transitions. [2023-08-25 14:35:44,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 26 transitions, 130 flow [2023-08-25 14:35:44,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 26 transitions, 126 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 14:35:44,360 INFO L231 Difference]: Finished difference. Result has 29 places, 18 transitions, 62 flow [2023-08-25 14:35:44,360 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=208, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=62, PETRI_PLACES=29, PETRI_TRANSITIONS=18} [2023-08-25 14:35:44,360 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -19 predicate places. [2023-08-25 14:35:44,360 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 18 transitions, 62 flow [2023-08-25 14:35:44,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:35:44,361 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 14:35:44,361 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 14:35:44,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 14:35:44,361 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-25 14:35:44,361 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 14:35:44,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1540249718, now seen corresponding path program 1 times [2023-08-25 14:35:44,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 14:35:44,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991072531] [2023-08-25 14:35:44,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 14:35:44,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 14:35:44,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 14:35:44,390 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 14:35:44,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 14:35:44,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991072531] [2023-08-25 14:35:44,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991072531] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 14:35:44,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 14:35:44,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 14:35:44,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523718473] [2023-08-25 14:35:44,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 14:35:44,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 14:35:44,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 14:35:44,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 14:35:44,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 14:35:44,392 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 208 [2023-08-25 14:35:44,392 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 18 transitions, 62 flow. Second operand has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 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 14:35:44,393 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 14:35:44,393 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 208 [2023-08-25 14:35:44,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 14:35:44,442 INFO L124 PetriNetUnfolderBase]: 313/522 cut-off events. [2023-08-25 14:35:44,442 INFO L125 PetriNetUnfolderBase]: For 160/160 co-relation queries the response was YES. [2023-08-25 14:35:44,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1278 conditions, 522 events. 313/522 cut-off events. For 160/160 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1972 event pairs, 165 based on Foata normal form. 24/546 useless extension candidates. Maximal degree in co-relation 1272. Up to 319 conditions per place. [2023-08-25 14:35:44,444 INFO L140 encePairwiseOnDemand]: 205/208 looper letters, 23 selfloop transitions, 3 changer transitions 0/26 dead transitions. [2023-08-25 14:35:44,444 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 26 transitions, 132 flow [2023-08-25 14:35:44,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 14:35:44,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 14:35:44,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 251 transitions. [2023-08-25 14:35:44,445 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40224358974358976 [2023-08-25 14:35:44,445 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 251 transitions. [2023-08-25 14:35:44,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 251 transitions. [2023-08-25 14:35:44,445 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 14:35:44,445 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 251 transitions. [2023-08-25 14:35:44,446 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 14:35:44,446 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 208.0) internal successors, (832), 4 states have internal predecessors, (832), 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 14:35:44,447 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 208.0) internal successors, (832), 4 states have internal predecessors, (832), 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 14:35:44,447 INFO L175 Difference]: Start difference. First operand has 29 places, 18 transitions, 62 flow. Second operand 3 states and 251 transitions. [2023-08-25 14:35:44,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 26 transitions, 132 flow [2023-08-25 14:35:44,448 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 26 transitions, 128 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 14:35:44,448 INFO L231 Difference]: Finished difference. Result has 30 places, 18 transitions, 69 flow [2023-08-25 14:35:44,448 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=208, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=69, PETRI_PLACES=30, PETRI_TRANSITIONS=18} [2023-08-25 14:35:44,449 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -18 predicate places. [2023-08-25 14:35:44,449 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 18 transitions, 69 flow [2023-08-25 14:35:44,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 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 14:35:44,449 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 14:35:44,449 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 14:35:44,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 14:35:44,449 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-25 14:35:44,449 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 14:35:44,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1509198351, now seen corresponding path program 1 times [2023-08-25 14:35:44,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 14:35:44,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162564078] [2023-08-25 14:35:44,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 14:35:44,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 14:35:44,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 14:35:44,491 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 14:35:44,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 14:35:44,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162564078] [2023-08-25 14:35:44,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162564078] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 14:35:44,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 14:35:44,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 14:35:44,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706826821] [2023-08-25 14:35:44,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 14:35:44,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 14:35:44,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 14:35:44,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 14:35:44,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 14:35:44,495 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 208 [2023-08-25 14:35:44,496 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 18 transitions, 69 flow. Second operand has 4 states, 4 states have (on average 76.5) internal successors, (306), 4 states have internal predecessors, (306), 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 14:35:44,496 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 14:35:44,496 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 208 [2023-08-25 14:35:44,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 14:35:44,573 INFO L124 PetriNetUnfolderBase]: 357/610 cut-off events. [2023-08-25 14:35:44,573 INFO L125 PetriNetUnfolderBase]: For 448/448 co-relation queries the response was YES. [2023-08-25 14:35:44,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1546 conditions, 610 events. 357/610 cut-off events. For 448/448 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 2678 event pairs, 123 based on Foata normal form. 24/634 useless extension candidates. Maximal degree in co-relation 1539. Up to 216 conditions per place. [2023-08-25 14:35:44,576 INFO L140 encePairwiseOnDemand]: 204/208 looper letters, 28 selfloop transitions, 3 changer transitions 9/40 dead transitions. [2023-08-25 14:35:44,576 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 40 transitions, 234 flow [2023-08-25 14:35:44,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 14:35:44,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 14:35:44,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 332 transitions. [2023-08-25 14:35:44,577 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39903846153846156 [2023-08-25 14:35:44,577 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 332 transitions. [2023-08-25 14:35:44,577 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 332 transitions. [2023-08-25 14:35:44,577 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 14:35:44,577 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 332 transitions. [2023-08-25 14:35:44,578 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 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 14:35:44,579 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 208.0) internal successors, (1040), 5 states have internal predecessors, (1040), 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 14:35:44,579 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 208.0) internal successors, (1040), 5 states have internal predecessors, (1040), 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 14:35:44,580 INFO L175 Difference]: Start difference. First operand has 30 places, 18 transitions, 69 flow. Second operand 4 states and 332 transitions. [2023-08-25 14:35:44,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 40 transitions, 234 flow [2023-08-25 14:35:44,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 40 transitions, 219 flow, removed 3 selfloop flow, removed 1 redundant places. [2023-08-25 14:35:44,583 INFO L231 Difference]: Finished difference. Result has 34 places, 18 transitions, 78 flow [2023-08-25 14:35:44,583 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=208, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=78, PETRI_PLACES=34, PETRI_TRANSITIONS=18} [2023-08-25 14:35:44,585 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -14 predicate places. [2023-08-25 14:35:44,585 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 18 transitions, 78 flow [2023-08-25 14:35:44,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.5) internal successors, (306), 4 states have internal predecessors, (306), 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 14:35:44,586 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 14:35:44,586 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 14:35:44,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 14:35:44,586 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-25 14:35:44,586 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 14:35:44,586 INFO L85 PathProgramCache]: Analyzing trace with hash -2105868787, now seen corresponding path program 1 times [2023-08-25 14:35:44,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 14:35:44,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471113104] [2023-08-25 14:35:44,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 14:35:44,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 14:35:44,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 14:35:44,651 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 14:35:44,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 14:35:44,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471113104] [2023-08-25 14:35:44,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471113104] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 14:35:44,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 14:35:44,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 14:35:44,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017412495] [2023-08-25 14:35:44,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 14:35:44,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 14:35:44,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 14:35:44,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 14:35:44,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 14:35:44,654 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 208 [2023-08-25 14:35:44,655 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 18 transitions, 78 flow. Second operand has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 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 14:35:44,655 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 14:35:44,655 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 208 [2023-08-25 14:35:44,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 14:35:44,703 INFO L124 PetriNetUnfolderBase]: 185/338 cut-off events. [2023-08-25 14:35:44,703 INFO L125 PetriNetUnfolderBase]: For 271/271 co-relation queries the response was YES. [2023-08-25 14:35:44,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 913 conditions, 338 events. 185/338 cut-off events. For 271/271 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1227 event pairs, 59 based on Foata normal form. 12/350 useless extension candidates. Maximal degree in co-relation 904. Up to 172 conditions per place. [2023-08-25 14:35:44,704 INFO L140 encePairwiseOnDemand]: 203/208 looper letters, 16 selfloop transitions, 3 changer transitions 13/32 dead transitions. [2023-08-25 14:35:44,704 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 32 transitions, 192 flow [2023-08-25 14:35:44,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 14:35:44,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 14:35:44,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 329 transitions. [2023-08-25 14:35:44,706 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3954326923076923 [2023-08-25 14:35:44,706 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 329 transitions. [2023-08-25 14:35:44,706 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 329 transitions. [2023-08-25 14:35:44,707 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 14:35:44,707 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 329 transitions. [2023-08-25 14:35:44,708 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 82.25) internal successors, (329), 4 states have internal predecessors, (329), 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 14:35:44,709 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 208.0) internal successors, (1040), 5 states have internal predecessors, (1040), 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 14:35:44,710 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 208.0) internal successors, (1040), 5 states have internal predecessors, (1040), 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 14:35:44,710 INFO L175 Difference]: Start difference. First operand has 34 places, 18 transitions, 78 flow. Second operand 4 states and 329 transitions. [2023-08-25 14:35:44,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 32 transitions, 192 flow [2023-08-25 14:35:44,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 32 transitions, 170 flow, removed 2 selfloop flow, removed 4 redundant places. [2023-08-25 14:35:44,712 INFO L231 Difference]: Finished difference. Result has 34 places, 16 transitions, 66 flow [2023-08-25 14:35:44,712 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=208, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=66, PETRI_PLACES=34, PETRI_TRANSITIONS=16} [2023-08-25 14:35:44,714 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -14 predicate places. [2023-08-25 14:35:44,716 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 16 transitions, 66 flow [2023-08-25 14:35:44,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 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 14:35:44,716 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 14:35:44,717 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 14:35:44,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 14:35:44,717 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-25 14:35:44,718 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 14:35:44,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1579434807, now seen corresponding path program 2 times [2023-08-25 14:35:44,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 14:35:44,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573127010] [2023-08-25 14:35:44,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 14:35:44,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 14:35:44,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 14:35:44,832 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 14:35:44,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 14:35:44,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573127010] [2023-08-25 14:35:44,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573127010] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 14:35:44,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 14:35:44,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 14:35:44,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795788845] [2023-08-25 14:35:44,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 14:35:44,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 14:35:44,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 14:35:44,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 14:35:44,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 14:35:44,834 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 208 [2023-08-25 14:35:44,834 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 16 transitions, 66 flow. Second operand has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 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 14:35:44,834 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 14:35:44,834 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 208 [2023-08-25 14:35:44,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 14:35:44,881 INFO L124 PetriNetUnfolderBase]: 62/133 cut-off events. [2023-08-25 14:35:44,881 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2023-08-25 14:35:44,881 INFO L83 FinitePrefix]: Finished finitePrefix Result has 352 conditions, 133 events. 62/133 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 435 event pairs, 12 based on Foata normal form. 4/137 useless extension candidates. Maximal degree in co-relation 344. Up to 82 conditions per place. [2023-08-25 14:35:44,881 INFO L140 encePairwiseOnDemand]: 202/208 looper letters, 18 selfloop transitions, 3 changer transitions 18/39 dead transitions. [2023-08-25 14:35:44,881 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 39 transitions, 225 flow [2023-08-25 14:35:44,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 14:35:44,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 14:35:44,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 396 transitions. [2023-08-25 14:35:44,883 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38076923076923075 [2023-08-25 14:35:44,883 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 396 transitions. [2023-08-25 14:35:44,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 396 transitions. [2023-08-25 14:35:44,883 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 14:35:44,883 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 396 transitions. [2023-08-25 14:35:44,884 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 79.2) internal successors, (396), 5 states have internal predecessors, (396), 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 14:35:44,886 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 208.0) internal successors, (1248), 6 states have internal predecessors, (1248), 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 14:35:44,887 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 208.0) internal successors, (1248), 6 states have internal predecessors, (1248), 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 14:35:44,887 INFO L175 Difference]: Start difference. First operand has 34 places, 16 transitions, 66 flow. Second operand 5 states and 396 transitions. [2023-08-25 14:35:44,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 39 transitions, 225 flow [2023-08-25 14:35:44,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 39 transitions, 196 flow, removed 1 selfloop flow, removed 6 redundant places. [2023-08-25 14:35:44,888 INFO L231 Difference]: Finished difference. Result has 35 places, 18 transitions, 83 flow [2023-08-25 14:35:44,888 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=208, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=83, PETRI_PLACES=35, PETRI_TRANSITIONS=18} [2023-08-25 14:35:44,889 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -13 predicate places. [2023-08-25 14:35:44,889 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 18 transitions, 83 flow [2023-08-25 14:35:44,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 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 14:35:44,889 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 14:35:44,889 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 14:35:44,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 14:35:44,889 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-25 14:35:44,890 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 14:35:44,890 INFO L85 PathProgramCache]: Analyzing trace with hash 327835792, now seen corresponding path program 1 times [2023-08-25 14:35:44,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 14:35:44,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779496487] [2023-08-25 14:35:44,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 14:35:44,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 14:35:44,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 14:35:45,010 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 14:35:45,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 14:35:45,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779496487] [2023-08-25 14:35:45,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779496487] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 14:35:45,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 14:35:45,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 14:35:45,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421643557] [2023-08-25 14:35:45,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 14:35:45,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 14:35:45,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 14:35:45,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 14:35:45,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 14:35:45,012 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 208 [2023-08-25 14:35:45,012 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 18 transitions, 83 flow. Second operand has 5 states, 5 states have (on average 73.6) internal successors, (368), 5 states have internal predecessors, (368), 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 14:35:45,012 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 14:35:45,012 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 208 [2023-08-25 14:35:45,012 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 14:35:45,061 INFO L124 PetriNetUnfolderBase]: 31/79 cut-off events. [2023-08-25 14:35:45,061 INFO L125 PetriNetUnfolderBase]: For 88/88 co-relation queries the response was YES. [2023-08-25 14:35:45,061 INFO L83 FinitePrefix]: Finished finitePrefix Result has 291 conditions, 79 events. 31/79 cut-off events. For 88/88 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 214 event pairs, 1 based on Foata normal form. 3/82 useless extension candidates. Maximal degree in co-relation 281. Up to 49 conditions per place. [2023-08-25 14:35:45,061 INFO L140 encePairwiseOnDemand]: 202/208 looper letters, 17 selfloop transitions, 5 changer transitions 18/40 dead transitions. [2023-08-25 14:35:45,062 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 40 transitions, 267 flow [2023-08-25 14:35:45,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 14:35:45,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 14:35:45,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 468 transitions. [2023-08-25 14:35:45,063 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.375 [2023-08-25 14:35:45,063 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 468 transitions. [2023-08-25 14:35:45,063 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 468 transitions. [2023-08-25 14:35:45,063 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 14:35:45,063 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 468 transitions. [2023-08-25 14:35:45,064 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 78.0) internal successors, (468), 6 states have internal predecessors, (468), 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 14:35:45,065 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 208.0) internal successors, (1456), 7 states have internal predecessors, (1456), 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 14:35:45,065 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 208.0) internal successors, (1456), 7 states have internal predecessors, (1456), 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 14:35:45,065 INFO L175 Difference]: Start difference. First operand has 35 places, 18 transitions, 83 flow. Second operand 6 states and 468 transitions. [2023-08-25 14:35:45,066 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 40 transitions, 267 flow [2023-08-25 14:35:45,067 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 40 transitions, 262 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-25 14:35:45,068 INFO L231 Difference]: Finished difference. Result has 39 places, 18 transitions, 102 flow [2023-08-25 14:35:45,068 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=208, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=102, PETRI_PLACES=39, PETRI_TRANSITIONS=18} [2023-08-25 14:35:45,069 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -9 predicate places. [2023-08-25 14:35:45,069 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 18 transitions, 102 flow [2023-08-25 14:35:45,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 73.6) internal successors, (368), 5 states have internal predecessors, (368), 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 14:35:45,070 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 14:35:45,070 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 14:35:45,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 14:35:45,070 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-25 14:35:45,070 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 14:35:45,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1572952776, now seen corresponding path program 1 times [2023-08-25 14:35:45,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 14:35:45,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77795772] [2023-08-25 14:35:45,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 14:35:45,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 14:35:45,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 14:35:45,192 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 14:35:45,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 14:35:45,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77795772] [2023-08-25 14:35:45,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77795772] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 14:35:45,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 14:35:45,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 14:35:45,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937282136] [2023-08-25 14:35:45,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 14:35:45,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 14:35:45,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 14:35:45,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 14:35:45,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-08-25 14:35:45,197 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 208 [2023-08-25 14:35:45,197 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 18 transitions, 102 flow. Second operand has 6 states, 6 states have (on average 73.33333333333333) internal successors, (440), 6 states have internal predecessors, (440), 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 14:35:45,197 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 14:35:45,197 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 208 [2023-08-25 14:35:45,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 14:35:45,231 INFO L124 PetriNetUnfolderBase]: 13/41 cut-off events. [2023-08-25 14:35:45,231 INFO L125 PetriNetUnfolderBase]: For 80/80 co-relation queries the response was YES. [2023-08-25 14:35:45,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 175 conditions, 41 events. 13/41 cut-off events. For 80/80 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 69 event pairs, 0 based on Foata normal form. 1/42 useless extension candidates. Maximal degree in co-relation 163. Up to 21 conditions per place. [2023-08-25 14:35:45,231 INFO L140 encePairwiseOnDemand]: 202/208 looper letters, 0 selfloop transitions, 0 changer transitions 27/27 dead transitions. [2023-08-25 14:35:45,231 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 27 transitions, 190 flow [2023-08-25 14:35:45,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 14:35:45,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 14:35:45,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 525 transitions. [2023-08-25 14:35:45,233 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3605769230769231 [2023-08-25 14:35:45,233 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 525 transitions. [2023-08-25 14:35:45,233 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 525 transitions. [2023-08-25 14:35:45,234 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 14:35:45,234 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 525 transitions. [2023-08-25 14:35:45,234 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 75.0) internal successors, (525), 7 states have internal predecessors, (525), 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 14:35:45,236 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 208.0) internal successors, (1664), 8 states have internal predecessors, (1664), 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 14:35:45,236 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 208.0) internal successors, (1664), 8 states have internal predecessors, (1664), 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 14:35:45,236 INFO L175 Difference]: Start difference. First operand has 39 places, 18 transitions, 102 flow. Second operand 7 states and 525 transitions. [2023-08-25 14:35:45,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 27 transitions, 190 flow [2023-08-25 14:35:45,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 27 transitions, 149 flow, removed 12 selfloop flow, removed 7 redundant places. [2023-08-25 14:35:45,237 INFO L231 Difference]: Finished difference. Result has 35 places, 0 transitions, 0 flow [2023-08-25 14:35:45,237 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=208, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=35, PETRI_TRANSITIONS=0} [2023-08-25 14:35:45,237 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -13 predicate places. [2023-08-25 14:35:45,238 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 0 transitions, 0 flow [2023-08-25 14:35:45,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.33333333333333) internal successors, (440), 6 states have internal predecessors, (440), 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 14:35:45,240 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONDATA_RACE (37 of 38 remaining) [2023-08-25 14:35:45,240 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONDATA_RACE (36 of 38 remaining) [2023-08-25 14:35:45,241 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err2ASSERT_VIOLATIONDATA_RACE (35 of 38 remaining) [2023-08-25 14:35:45,241 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err3ASSERT_VIOLATIONDATA_RACE (34 of 38 remaining) [2023-08-25 14:35:45,241 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err4ASSERT_VIOLATIONDATA_RACE (33 of 38 remaining) [2023-08-25 14:35:45,241 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONDATA_RACE (32 of 38 remaining) [2023-08-25 14:35:45,241 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONDATA_RACE (31 of 38 remaining) [2023-08-25 14:35:45,242 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err2ASSERT_VIOLATIONDATA_RACE (30 of 38 remaining) [2023-08-25 14:35:45,243 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err3ASSERT_VIOLATIONDATA_RACE (29 of 38 remaining) [2023-08-25 14:35:45,243 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err4ASSERT_VIOLATIONDATA_RACE (28 of 38 remaining) [2023-08-25 14:35:45,243 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONDATA_RACE (27 of 38 remaining) [2023-08-25 14:35:45,243 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONDATA_RACE (26 of 38 remaining) [2023-08-25 14:35:45,243 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err2ASSERT_VIOLATIONDATA_RACE (25 of 38 remaining) [2023-08-25 14:35:45,243 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (24 of 38 remaining) [2023-08-25 14:35:45,243 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (23 of 38 remaining) [2023-08-25 14:35:45,243 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (22 of 38 remaining) [2023-08-25 14:35:45,243 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (21 of 38 remaining) [2023-08-25 14:35:45,243 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (20 of 38 remaining) [2023-08-25 14:35:45,244 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (19 of 38 remaining) [2023-08-25 14:35:45,244 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (18 of 38 remaining) [2023-08-25 14:35:45,244 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (17 of 38 remaining) [2023-08-25 14:35:45,244 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONASSERT (16 of 38 remaining) [2023-08-25 14:35:45,244 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 38 remaining) [2023-08-25 14:35:45,244 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 38 remaining) [2023-08-25 14:35:45,244 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 38 remaining) [2023-08-25 14:35:45,244 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONDATA_RACE (12 of 38 remaining) [2023-08-25 14:35:45,244 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONDATA_RACE (11 of 38 remaining) [2023-08-25 14:35:45,244 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err2ASSERT_VIOLATIONDATA_RACE (10 of 38 remaining) [2023-08-25 14:35:45,244 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err3ASSERT_VIOLATIONDATA_RACE (9 of 38 remaining) [2023-08-25 14:35:45,244 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err4ASSERT_VIOLATIONDATA_RACE (8 of 38 remaining) [2023-08-25 14:35:45,244 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONDATA_RACE (7 of 38 remaining) [2023-08-25 14:35:45,245 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONDATA_RACE (6 of 38 remaining) [2023-08-25 14:35:45,245 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err2ASSERT_VIOLATIONDATA_RACE (5 of 38 remaining) [2023-08-25 14:35:45,245 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err3ASSERT_VIOLATIONDATA_RACE (4 of 38 remaining) [2023-08-25 14:35:45,245 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err4ASSERT_VIOLATIONDATA_RACE (3 of 38 remaining) [2023-08-25 14:35:45,245 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONDATA_RACE (2 of 38 remaining) [2023-08-25 14:35:45,245 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONDATA_RACE (1 of 38 remaining) [2023-08-25 14:35:45,245 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err2ASSERT_VIOLATIONDATA_RACE (0 of 38 remaining) [2023-08-25 14:35:45,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 14:35:45,245 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 14:35:45,249 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 14:35:45,249 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 14:35:45,251 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 02:35:45 BasicIcfg [2023-08-25 14:35:45,251 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 14:35:45,251 INFO L158 Benchmark]: Toolchain (without parser) took 5617.32ms. Allocated memory was 346.0MB in the beginning and 436.2MB in the end (delta: 90.2MB). Free memory was 321.2MB in the beginning and 391.1MB in the end (delta: -70.0MB). Peak memory consumption was 18.6MB. Max. memory is 16.0GB. [2023-08-25 14:35:45,251 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 346.0MB. Free memory is still 322.5MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 14:35:45,252 INFO L158 Benchmark]: CACSL2BoogieTranslator took 353.96ms. Allocated memory is still 346.0MB. Free memory was 321.2MB in the beginning and 300.7MB in the end (delta: 20.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-25 14:35:45,252 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.98ms. Allocated memory is still 346.0MB. Free memory was 300.7MB in the beginning and 298.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 14:35:45,252 INFO L158 Benchmark]: Boogie Preprocessor took 26.62ms. Allocated memory is still 346.0MB. Free memory was 298.1MB in the beginning and 296.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 14:35:45,254 INFO L158 Benchmark]: RCFGBuilder took 477.52ms. Allocated memory is still 346.0MB. Free memory was 296.5MB in the beginning and 320.9MB in the end (delta: -24.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.0GB. [2023-08-25 14:35:45,254 INFO L158 Benchmark]: TraceAbstraction took 4704.96ms. Allocated memory was 346.0MB in the beginning and 436.2MB in the end (delta: 90.2MB). Free memory was 319.9MB in the beginning and 391.1MB in the end (delta: -71.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-25 14:35:45,255 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 346.0MB. Free memory is still 322.5MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 353.96ms. Allocated memory is still 346.0MB. Free memory was 321.2MB in the beginning and 300.7MB in the end (delta: 20.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 44.98ms. Allocated memory is still 346.0MB. Free memory was 300.7MB in the beginning and 298.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 26.62ms. Allocated memory is still 346.0MB. Free memory was 298.1MB in the beginning and 296.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 477.52ms. Allocated memory is still 346.0MB. Free memory was 296.5MB in the beginning and 320.9MB in the end (delta: -24.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.0GB. * TraceAbstraction took 4704.96ms. Allocated memory was 346.0MB in the beginning and 436.2MB in the end (delta: 90.2MB). Free memory was 319.9MB in the beginning and 391.1MB in the end (delta: -71.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 267]: Unsoundness Warning unspecified type, defaulting to int C: short [267] - GenericResultAtLocation [Line: 267]: Unsoundness Warning unspecified type, defaulting to int C: short [267] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.0s, 116 PlacesBefore, 48 PlacesAfterwards, 109 TransitionsBefore, 38 TransitionsAfterwards, 3696 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 63 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 3 ChoiceCompositions, 96 TotalNumberOfCompositions, 11176 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5475, independent: 5231, independent conditional: 0, independent unconditional: 5231, dependent: 244, dependent conditional: 0, dependent unconditional: 244, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1967, independent: 1905, independent conditional: 0, independent unconditional: 1905, dependent: 62, dependent conditional: 0, dependent unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5475, independent: 3326, independent conditional: 0, independent unconditional: 3326, dependent: 182, dependent conditional: 0, dependent unconditional: 182, unknown: 1967, unknown conditional: 0, unknown unconditional: 1967] , Statistics on independence cache: Total cache size (in pairs): 297, Positive cache size: 269, Positive conditional cache size: 0, Positive unconditional cache size: 269, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 723]: 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: 726]: 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: 731]: 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: 738]: 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: 746]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 746]: 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: 758]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 758]: 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: 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: 786]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 786]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 786]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 786]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 788]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 17]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 146 locations, 38 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: 4.6s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 106 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 106 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 356 IncrementalHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 0 mSDtfsCounter, 356 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=102occurred in iteration=8, InterpolantAutomatonStates: 37, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 227 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 22 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 14:35:45,268 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...