/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/safe020_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 15:34:54,956 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 15:34:55,022 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 15:34:55,026 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 15:34:55,026 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 15:34:55,048 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 15:34:55,048 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 15:34:55,049 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 15:34:55,049 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 15:34:55,052 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 15:34:55,052 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 15:34:55,052 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 15:34:55,052 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 15:34:55,053 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 15:34:55,053 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 15:34:55,053 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 15:34:55,053 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 15:34:55,053 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 15:34:55,054 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 15:34:55,054 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 15:34:55,054 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 15:34:55,054 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 15:34:55,055 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 15:34:55,055 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 15:34:55,055 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 15:34:55,055 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 15:34:55,055 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 15:34:55,056 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 15:34:55,056 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 15:34:55,056 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 15:34:55,057 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 15:34:55,057 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 15:34:55,057 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 15:34:55,057 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 15:34:55,057 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 15:34:55,057 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 15:34:55,265 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 15:34:55,289 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 15:34:55,291 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 15:34:55,291 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 15:34:55,292 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 15:34:55,293 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe020_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-25 15:34:56,253 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 15:34:56,451 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 15:34:56,451 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe020_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-25 15:34:56,461 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f995485e1/43241d24eadc4690b0c20ca1e0f6e13e/FLAG3278b48e5 [2023-08-25 15:34:56,469 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f995485e1/43241d24eadc4690b0c20ca1e0f6e13e [2023-08-25 15:34:56,470 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 15:34:56,471 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 15:34:56,472 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 15:34:56,472 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 15:34:56,474 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 15:34:56,474 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 03:34:56" (1/1) ... [2023-08-25 15:34:56,474 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47ff19fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:34:56, skipping insertion in model container [2023-08-25 15:34:56,475 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 03:34:56" (1/1) ... [2023-08-25 15:34:56,507 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 15:34:56,733 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 15:34:56,742 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 15:34:56,766 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-25 15:34:56,767 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-25 15:34:56,787 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 15:34:56,814 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 15:34:56,814 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 15:34:56,819 INFO L206 MainTranslator]: Completed translation [2023-08-25 15:34:56,819 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:34:56 WrapperNode [2023-08-25 15:34:56,819 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 15:34:56,820 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 15:34:56,820 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 15:34:56,820 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 15:34:56,824 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:34:56" (1/1) ... [2023-08-25 15:34:56,848 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:34:56" (1/1) ... [2023-08-25 15:34:56,866 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 101 [2023-08-25 15:34:56,867 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 15:34:56,868 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 15:34:56,868 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 15:34:56,868 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 15:34:56,874 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:34:56" (1/1) ... [2023-08-25 15:34:56,874 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:34:56" (1/1) ... [2023-08-25 15:34:56,886 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:34:56" (1/1) ... [2023-08-25 15:34:56,886 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:34:56" (1/1) ... [2023-08-25 15:34:56,890 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:34:56" (1/1) ... [2023-08-25 15:34:56,899 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:34:56" (1/1) ... [2023-08-25 15:34:56,900 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:34:56" (1/1) ... [2023-08-25 15:34:56,901 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:34:56" (1/1) ... [2023-08-25 15:34:56,903 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 15:34:56,903 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 15:34:56,903 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 15:34:56,903 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 15:34:56,904 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:34:56" (1/1) ... [2023-08-25 15:34:56,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 15:34:56,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 15:34:56,933 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 15:34:56,939 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 15:34:56,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 15:34:56,958 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-25 15:34:56,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 15:34:56,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 15:34:56,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 15:34:56,959 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-25 15:34:56,959 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-25 15:34:56,959 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-25 15:34:56,959 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-25 15:34:56,960 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-25 15:34:56,960 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-25 15:34:56,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 15:34:56,960 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-25 15:34:56,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 15:34:56,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 15:34:56,962 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 15:34:57,085 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 15:34:57,087 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 15:34:57,261 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 15:34:57,361 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 15:34:57,361 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 15:34:57,362 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 03:34:57 BoogieIcfgContainer [2023-08-25 15:34:57,363 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 15:34:57,364 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 15:34:57,364 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 15:34:57,366 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 15:34:57,366 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 03:34:56" (1/3) ... [2023-08-25 15:34:57,370 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d741378 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 03:34:57, skipping insertion in model container [2023-08-25 15:34:57,370 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:34:56" (2/3) ... [2023-08-25 15:34:57,370 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d741378 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 03:34:57, skipping insertion in model container [2023-08-25 15:34:57,370 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 03:34:57" (3/3) ... [2023-08-25 15:34:57,371 INFO L112 eAbstractionObserver]: Analyzing ICFG safe020_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-25 15:34:57,382 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 15:34:57,382 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-08-25 15:34:57,382 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 15:34:57,420 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 15:34:57,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 119 places, 112 transitions, 239 flow [2023-08-25 15:34:57,470 INFO L124 PetriNetUnfolderBase]: 3/109 cut-off events. [2023-08-25 15:34:57,471 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 15:34:57,475 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 134 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 15:34:57,475 INFO L82 GeneralOperation]: Start removeDead. Operand has 119 places, 112 transitions, 239 flow [2023-08-25 15:34:57,478 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 116 places, 109 transitions, 227 flow [2023-08-25 15:34:57,480 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 15:34:57,485 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 116 places, 109 transitions, 227 flow [2023-08-25 15:34:57,487 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 116 places, 109 transitions, 227 flow [2023-08-25 15:34:57,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 116 places, 109 transitions, 227 flow [2023-08-25 15:34:57,507 INFO L124 PetriNetUnfolderBase]: 3/109 cut-off events. [2023-08-25 15:34:57,507 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 15:34:57,509 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 133 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 15:34:57,511 INFO L119 LiptonReduction]: Number of co-enabled transitions 3654 [2023-08-25 15:35:00,071 INFO L134 LiptonReduction]: Checked pairs total: 13097 [2023-08-25 15:35:00,072 INFO L136 LiptonReduction]: Total number of compositions: 111 [2023-08-25 15:35:00,086 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 15:35:00,091 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;@e79ce5b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 15:35:00,091 INFO L358 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2023-08-25 15:35:00,092 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 15:35:00,092 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-08-25 15:35:00,092 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 15:35:00,093 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 15:35:00,093 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-25 15:35:00,093 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-25 15:35:00,097 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 15:35:00,098 INFO L85 PathProgramCache]: Analyzing trace with hash 562902, now seen corresponding path program 1 times [2023-08-25 15:35:00,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 15:35:00,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631337740] [2023-08-25 15:35:00,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 15:35:00,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 15:35:00,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 15:35:00,201 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 15:35:00,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 15:35:00,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631337740] [2023-08-25 15:35:00,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631337740] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 15:35:00,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 15:35:00,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 15:35:00,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044917473] [2023-08-25 15:35:00,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 15:35:00,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 15:35:00,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 15:35:00,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 15:35:00,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 15:35:00,229 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 223 [2023-08-25 15:35:00,230 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 39 transitions, 87 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 15:35:00,230 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 15:35:00,230 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 223 [2023-08-25 15:35:00,231 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 15:35:00,328 INFO L124 PetriNetUnfolderBase]: 409/634 cut-off events. [2023-08-25 15:35:00,328 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2023-08-25 15:35:00,330 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1307 conditions, 634 events. 409/634 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2223 event pairs, 409 based on Foata normal form. 0/586 useless extension candidates. Maximal degree in co-relation 1296. Up to 635 conditions per place. [2023-08-25 15:35:00,332 INFO L140 encePairwiseOnDemand]: 201/223 looper letters, 16 selfloop transitions, 0 changer transitions 1/17 dead transitions. [2023-08-25 15:35:00,332 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 17 transitions, 77 flow [2023-08-25 15:35:00,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 15:35:00,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 15:35:00,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 191 transitions. [2023-08-25 15:35:00,340 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4282511210762332 [2023-08-25 15:35:00,340 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 191 transitions. [2023-08-25 15:35:00,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 191 transitions. [2023-08-25 15:35:00,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 15:35:00,343 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 191 transitions. [2023-08-25 15:35:00,344 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 95.5) internal successors, (191), 2 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:35:00,346 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 223.0) internal successors, (669), 3 states have internal predecessors, (669), 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 15:35:00,347 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 223.0) internal successors, (669), 3 states have internal predecessors, (669), 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 15:35:00,348 INFO L175 Difference]: Start difference. First operand has 48 places, 39 transitions, 87 flow. Second operand 2 states and 191 transitions. [2023-08-25 15:35:00,348 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 17 transitions, 77 flow [2023-08-25 15:35:00,349 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 15:35:00,350 INFO L231 Difference]: Finished difference. Result has 25 places, 16 transitions, 38 flow [2023-08-25 15:35:00,351 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=223, 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 15:35:00,353 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -23 predicate places. [2023-08-25 15:35:00,353 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 16 transitions, 38 flow [2023-08-25 15:35:00,353 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 15:35:00,354 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 15:35:00,354 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 15:35:00,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 15:35:00,354 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 15:35:00,354 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 15:35:00,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1782852125, now seen corresponding path program 1 times [2023-08-25 15:35:00,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 15:35:00,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19184742] [2023-08-25 15:35:00,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 15:35:00,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 15:35:00,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 15:35:00,467 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 15:35:00,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 15:35:00,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19184742] [2023-08-25 15:35:00,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19184742] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 15:35:00,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 15:35:00,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 15:35:00,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016993582] [2023-08-25 15:35:00,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 15:35:00,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 15:35:00,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 15:35:00,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 15:35:00,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 15:35:00,480 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 223 [2023-08-25 15:35:00,480 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 15:35:00,480 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 15:35:00,480 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 223 [2023-08-25 15:35:00,480 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 15:35:00,545 INFO L124 PetriNetUnfolderBase]: 289/460 cut-off events. [2023-08-25 15:35:00,545 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 15:35:00,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 957 conditions, 460 events. 289/460 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1636 event pairs, 82 based on Foata normal form. 6/466 useless extension candidates. Maximal degree in co-relation 954. Up to 427 conditions per place. [2023-08-25 15:35:00,549 INFO L140 encePairwiseOnDemand]: 219/223 looper letters, 23 selfloop transitions, 3 changer transitions 0/26 dead transitions. [2023-08-25 15:35:00,549 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 26 transitions, 114 flow [2023-08-25 15:35:00,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 15:35:00,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 15:35:00,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 252 transitions. [2023-08-25 15:35:00,555 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37668161434977576 [2023-08-25 15:35:00,555 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 252 transitions. [2023-08-25 15:35:00,555 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 252 transitions. [2023-08-25 15:35:00,557 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 15:35:00,557 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 252 transitions. [2023-08-25 15:35:00,559 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 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 15:35:00,561 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 223.0) internal successors, (892), 4 states have internal predecessors, (892), 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 15:35:00,562 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 223.0) internal successors, (892), 4 states have internal predecessors, (892), 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 15:35:00,562 INFO L175 Difference]: Start difference. First operand has 25 places, 16 transitions, 38 flow. Second operand 3 states and 252 transitions. [2023-08-25 15:35:00,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 26 transitions, 114 flow [2023-08-25 15:35:00,562 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 26 transitions, 114 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 15:35:00,563 INFO L231 Difference]: Finished difference. Result has 27 places, 18 transitions, 57 flow [2023-08-25 15:35:00,563 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=223, 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 15:35:00,564 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -21 predicate places. [2023-08-25 15:35:00,565 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 18 transitions, 57 flow [2023-08-25 15:35:00,566 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 15:35:00,567 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 15:35:00,567 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 15:35:00,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 15:35:00,572 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 15:35:00,572 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 15:35:00,572 INFO L85 PathProgramCache]: Analyzing trace with hash 566157373, now seen corresponding path program 1 times [2023-08-25 15:35:00,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 15:35:00,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218370934] [2023-08-25 15:35:00,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 15:35:00,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 15:35:00,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 15:35:00,657 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 15:35:00,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 15:35:00,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218370934] [2023-08-25 15:35:00,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218370934] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 15:35:00,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 15:35:00,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 15:35:00,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254624349] [2023-08-25 15:35:00,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 15:35:00,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 15:35:00,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 15:35:00,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 15:35:00,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 15:35:00,660 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 223 [2023-08-25 15:35:00,660 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 15:35:00,660 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 15:35:00,660 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 223 [2023-08-25 15:35:00,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 15:35:00,700 INFO L124 PetriNetUnfolderBase]: 268/430 cut-off events. [2023-08-25 15:35:00,700 INFO L125 PetriNetUnfolderBase]: For 46/46 co-relation queries the response was YES. [2023-08-25 15:35:00,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1030 conditions, 430 events. 268/430 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1401 event pairs, 84 based on Foata normal form. 9/439 useless extension candidates. Maximal degree in co-relation 1025. Up to 311 conditions per place. [2023-08-25 15:35:00,702 INFO L140 encePairwiseOnDemand]: 220/223 looper letters, 22 selfloop transitions, 2 changer transitions 0/24 dead transitions. [2023-08-25 15:35:00,702 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 24 transitions, 120 flow [2023-08-25 15:35:00,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 15:35:00,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 15:35:00,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 248 transitions. [2023-08-25 15:35:00,703 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37070254110612855 [2023-08-25 15:35:00,703 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 248 transitions. [2023-08-25 15:35:00,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 248 transitions. [2023-08-25 15:35:00,703 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 15:35:00,703 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 248 transitions. [2023-08-25 15:35:00,704 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:35:00,705 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 223.0) internal successors, (892), 4 states have internal predecessors, (892), 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 15:35:00,705 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 223.0) internal successors, (892), 4 states have internal predecessors, (892), 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 15:35:00,706 INFO L175 Difference]: Start difference. First operand has 27 places, 18 transitions, 57 flow. Second operand 3 states and 248 transitions. [2023-08-25 15:35:00,706 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 24 transitions, 120 flow [2023-08-25 15:35:00,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 24 transitions, 116 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 15:35:00,706 INFO L231 Difference]: Finished difference. Result has 29 places, 18 transitions, 62 flow [2023-08-25 15:35:00,707 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=223, 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 15:35:00,707 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -19 predicate places. [2023-08-25 15:35:00,707 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 18 transitions, 62 flow [2023-08-25 15:35:00,708 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 15:35:00,708 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 15:35:00,708 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 15:35:00,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 15:35:00,711 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 15:35:00,711 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 15:35:00,711 INFO L85 PathProgramCache]: Analyzing trace with hash 918583106, now seen corresponding path program 1 times [2023-08-25 15:35:00,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 15:35:00,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231226463] [2023-08-25 15:35:00,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 15:35:00,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 15:35:00,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 15:35:00,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 15:35:00,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 15:35:00,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231226463] [2023-08-25 15:35:00,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231226463] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 15:35:00,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 15:35:00,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 15:35:00,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278086649] [2023-08-25 15:35:00,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 15:35:00,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 15:35:00,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 15:35:00,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 15:35:00,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 15:35:00,785 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 223 [2023-08-25 15:35:00,786 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 18 transitions, 62 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 15:35:00,786 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 15:35:00,786 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 223 [2023-08-25 15:35:00,786 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 15:35:00,845 INFO L124 PetriNetUnfolderBase]: 310/509 cut-off events. [2023-08-25 15:35:00,845 INFO L125 PetriNetUnfolderBase]: For 196/196 co-relation queries the response was YES. [2023-08-25 15:35:00,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1246 conditions, 509 events. 310/509 cut-off events. For 196/196 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1950 event pairs, 55 based on Foata normal form. 33/542 useless extension candidates. Maximal degree in co-relation 1240. Up to 220 conditions per place. [2023-08-25 15:35:00,847 INFO L140 encePairwiseOnDemand]: 219/223 looper letters, 26 selfloop transitions, 3 changer transitions 9/38 dead transitions. [2023-08-25 15:35:00,847 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 38 transitions, 199 flow [2023-08-25 15:35:00,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 15:35:00,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 15:35:00,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 330 transitions. [2023-08-25 15:35:00,848 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36995515695067266 [2023-08-25 15:35:00,848 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 330 transitions. [2023-08-25 15:35:00,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 330 transitions. [2023-08-25 15:35:00,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 15:35:00,849 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 330 transitions. [2023-08-25 15:35:00,849 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 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 15:35:00,851 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 223.0) internal successors, (1115), 5 states have internal predecessors, (1115), 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 15:35:00,851 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 223.0) internal successors, (1115), 5 states have internal predecessors, (1115), 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 15:35:00,851 INFO L175 Difference]: Start difference. First operand has 29 places, 18 transitions, 62 flow. Second operand 4 states and 330 transitions. [2023-08-25 15:35:00,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 38 transitions, 199 flow [2023-08-25 15:35:00,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 38 transitions, 193 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 15:35:00,853 INFO L231 Difference]: Finished difference. Result has 32 places, 18 transitions, 72 flow [2023-08-25 15:35:00,853 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=223, 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=4, PETRI_FLOW=72, PETRI_PLACES=32, PETRI_TRANSITIONS=18} [2023-08-25 15:35:00,854 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -16 predicate places. [2023-08-25 15:35:00,854 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 18 transitions, 72 flow [2023-08-25 15:35:00,854 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 15:35:00,854 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 15:35:00,854 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 15:35:00,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 15:35:00,855 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 15:35:00,855 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 15:35:00,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1588689566, now seen corresponding path program 1 times [2023-08-25 15:35:00,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 15:35:00,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759454852] [2023-08-25 15:35:00,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 15:35:00,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 15:35:00,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 15:35:00,952 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 15:35:00,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 15:35:00,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759454852] [2023-08-25 15:35:00,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759454852] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 15:35:00,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 15:35:00,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 15:35:00,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146536410] [2023-08-25 15:35:00,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 15:35:00,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 15:35:00,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 15:35:00,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 15:35:00,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 15:35:00,954 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 223 [2023-08-25 15:35:00,954 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 18 transitions, 72 flow. Second operand has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 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 15:35:00,954 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 15:35:00,954 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 223 [2023-08-25 15:35:00,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 15:35:00,986 INFO L124 PetriNetUnfolderBase]: 140/250 cut-off events. [2023-08-25 15:35:00,986 INFO L125 PetriNetUnfolderBase]: For 197/197 co-relation queries the response was YES. [2023-08-25 15:35:00,986 INFO L83 FinitePrefix]: Finished finitePrefix Result has 719 conditions, 250 events. 140/250 cut-off events. For 197/197 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 781 event pairs, 41 based on Foata normal form. 12/262 useless extension candidates. Maximal degree in co-relation 711. Up to 196 conditions per place. [2023-08-25 15:35:00,987 INFO L140 encePairwiseOnDemand]: 218/223 looper letters, 28 selfloop transitions, 4 changer transitions 0/32 dead transitions. [2023-08-25 15:35:00,987 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 32 transitions, 184 flow [2023-08-25 15:35:00,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 15:35:00,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 15:35:00,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 254 transitions. [2023-08-25 15:35:00,988 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3796711509715994 [2023-08-25 15:35:00,988 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 254 transitions. [2023-08-25 15:35:00,988 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 254 transitions. [2023-08-25 15:35:00,989 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 15:35:00,989 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 254 transitions. [2023-08-25 15:35:00,989 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:35:00,990 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 223.0) internal successors, (892), 4 states have internal predecessors, (892), 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 15:35:00,991 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 223.0) internal successors, (892), 4 states have internal predecessors, (892), 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 15:35:00,991 INFO L175 Difference]: Start difference. First operand has 32 places, 18 transitions, 72 flow. Second operand 3 states and 254 transitions. [2023-08-25 15:35:00,991 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 32 transitions, 184 flow [2023-08-25 15:35:00,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 32 transitions, 167 flow, removed 2 selfloop flow, removed 4 redundant places. [2023-08-25 15:35:00,992 INFO L231 Difference]: Finished difference. Result has 31 places, 21 transitions, 86 flow [2023-08-25 15:35:00,992 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=223, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=31, PETRI_TRANSITIONS=21} [2023-08-25 15:35:00,992 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -17 predicate places. [2023-08-25 15:35:00,992 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 21 transitions, 86 flow [2023-08-25 15:35:00,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 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 15:35:00,993 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 15:35:00,993 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 15:35:00,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 15:35:00,993 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 15:35:00,993 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 15:35:00,993 INFO L85 PathProgramCache]: Analyzing trace with hash 767967920, now seen corresponding path program 1 times [2023-08-25 15:35:00,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 15:35:00,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296305252] [2023-08-25 15:35:00,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 15:35:00,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 15:35:01,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 15:35:01,051 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 15:35:01,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 15:35:01,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296305252] [2023-08-25 15:35:01,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296305252] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 15:35:01,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 15:35:01,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 15:35:01,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311965363] [2023-08-25 15:35:01,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 15:35:01,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 15:35:01,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 15:35:01,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 15:35:01,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 15:35:01,053 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 223 [2023-08-25 15:35:01,053 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 21 transitions, 86 flow. Second operand has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 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 15:35:01,053 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 15:35:01,053 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 223 [2023-08-25 15:35:01,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 15:35:01,093 INFO L124 PetriNetUnfolderBase]: 89/173 cut-off events. [2023-08-25 15:35:01,093 INFO L125 PetriNetUnfolderBase]: For 59/59 co-relation queries the response was YES. [2023-08-25 15:35:01,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 544 conditions, 173 events. 89/173 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 498 event pairs, 25 based on Foata normal form. 16/189 useless extension candidates. Maximal degree in co-relation 537. Up to 64 conditions per place. [2023-08-25 15:35:01,094 INFO L140 encePairwiseOnDemand]: 218/223 looper letters, 34 selfloop transitions, 7 changer transitions 0/41 dead transitions. [2023-08-25 15:35:01,094 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 41 transitions, 237 flow [2023-08-25 15:35:01,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 15:35:01,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 15:35:01,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 338 transitions. [2023-08-25 15:35:01,095 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3789237668161435 [2023-08-25 15:35:01,095 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 338 transitions. [2023-08-25 15:35:01,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 338 transitions. [2023-08-25 15:35:01,095 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 15:35:01,096 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 338 transitions. [2023-08-25 15:35:01,096 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 84.5) internal successors, (338), 4 states have internal predecessors, (338), 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 15:35:01,097 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 223.0) internal successors, (1115), 5 states have internal predecessors, (1115), 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 15:35:01,098 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 223.0) internal successors, (1115), 5 states have internal predecessors, (1115), 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 15:35:01,098 INFO L175 Difference]: Start difference. First operand has 31 places, 21 transitions, 86 flow. Second operand 4 states and 338 transitions. [2023-08-25 15:35:01,098 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 41 transitions, 237 flow [2023-08-25 15:35:01,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 41 transitions, 233 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 15:35:01,099 INFO L231 Difference]: Finished difference. Result has 34 places, 24 transitions, 122 flow [2023-08-25 15:35:01,099 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=223, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=122, PETRI_PLACES=34, PETRI_TRANSITIONS=24} [2023-08-25 15:35:01,099 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -14 predicate places. [2023-08-25 15:35:01,100 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 24 transitions, 122 flow [2023-08-25 15:35:01,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 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 15:35:01,100 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 15:35:01,100 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 15:35:01,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 15:35:01,100 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 15:35:01,100 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 15:35:01,100 INFO L85 PathProgramCache]: Analyzing trace with hash -647137423, now seen corresponding path program 1 times [2023-08-25 15:35:01,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 15:35:01,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827115078] [2023-08-25 15:35:01,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 15:35:01,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 15:35:01,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 15:35:01,125 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 15:35:01,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 15:35:01,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827115078] [2023-08-25 15:35:01,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827115078] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 15:35:01,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 15:35:01,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 15:35:01,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314910490] [2023-08-25 15:35:01,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 15:35:01,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 15:35:01,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 15:35:01,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 15:35:01,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 15:35:01,127 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 223 [2023-08-25 15:35:01,127 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 24 transitions, 122 flow. Second operand has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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 15:35:01,127 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 15:35:01,127 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 223 [2023-08-25 15:35:01,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 15:35:01,157 INFO L124 PetriNetUnfolderBase]: 99/201 cut-off events. [2023-08-25 15:35:01,157 INFO L125 PetriNetUnfolderBase]: For 261/261 co-relation queries the response was YES. [2023-08-25 15:35:01,157 INFO L83 FinitePrefix]: Finished finitePrefix Result has 710 conditions, 201 events. 99/201 cut-off events. For 261/261 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 623 event pairs, 59 based on Foata normal form. 6/207 useless extension candidates. Maximal degree in co-relation 702. Up to 157 conditions per place. [2023-08-25 15:35:01,158 INFO L140 encePairwiseOnDemand]: 220/223 looper letters, 27 selfloop transitions, 3 changer transitions 5/35 dead transitions. [2023-08-25 15:35:01,158 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 35 transitions, 260 flow [2023-08-25 15:35:01,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 15:35:01,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 15:35:01,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 248 transitions. [2023-08-25 15:35:01,159 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37070254110612855 [2023-08-25 15:35:01,159 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 248 transitions. [2023-08-25 15:35:01,159 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 248 transitions. [2023-08-25 15:35:01,159 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 15:35:01,159 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 248 transitions. [2023-08-25 15:35:01,160 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 15:35:01,161 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 223.0) internal successors, (892), 4 states have internal predecessors, (892), 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 15:35:01,161 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 223.0) internal successors, (892), 4 states have internal predecessors, (892), 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 15:35:01,161 INFO L175 Difference]: Start difference. First operand has 34 places, 24 transitions, 122 flow. Second operand 3 states and 248 transitions. [2023-08-25 15:35:01,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 35 transitions, 260 flow [2023-08-25 15:35:01,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 35 transitions, 234 flow, removed 6 selfloop flow, removed 2 redundant places. [2023-08-25 15:35:01,162 INFO L231 Difference]: Finished difference. Result has 35 places, 24 transitions, 119 flow [2023-08-25 15:35:01,163 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=223, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=119, PETRI_PLACES=35, PETRI_TRANSITIONS=24} [2023-08-25 15:35:01,163 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -13 predicate places. [2023-08-25 15:35:01,163 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 24 transitions, 119 flow [2023-08-25 15:35:01,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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 15:35:01,163 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 15:35:01,163 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 15:35:01,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 15:35:01,164 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 15:35:01,164 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 15:35:01,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1352457241, now seen corresponding path program 1 times [2023-08-25 15:35:01,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 15:35:01,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359558964] [2023-08-25 15:35:01,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 15:35:01,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 15:35:01,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 15:35:01,234 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 15:35:01,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 15:35:01,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359558964] [2023-08-25 15:35:01,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359558964] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 15:35:01,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 15:35:01,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 15:35:01,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560871997] [2023-08-25 15:35:01,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 15:35:01,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 15:35:01,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 15:35:01,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 15:35:01,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-25 15:35:01,236 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 223 [2023-08-25 15:35:01,236 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 24 transitions, 119 flow. Second operand has 5 states, 5 states have (on average 77.8) internal successors, (389), 5 states have internal predecessors, (389), 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 15:35:01,236 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 15:35:01,236 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 223 [2023-08-25 15:35:01,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 15:35:01,287 INFO L124 PetriNetUnfolderBase]: 84/168 cut-off events. [2023-08-25 15:35:01,287 INFO L125 PetriNetUnfolderBase]: For 164/164 co-relation queries the response was YES. [2023-08-25 15:35:01,287 INFO L83 FinitePrefix]: Finished finitePrefix Result has 553 conditions, 168 events. 84/168 cut-off events. For 164/164 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 504 event pairs, 23 based on Foata normal form. 11/179 useless extension candidates. Maximal degree in co-relation 544. Up to 70 conditions per place. [2023-08-25 15:35:01,288 INFO L140 encePairwiseOnDemand]: 218/223 looper letters, 20 selfloop transitions, 10 changer transitions 11/41 dead transitions. [2023-08-25 15:35:01,288 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 41 transitions, 273 flow [2023-08-25 15:35:01,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 15:35:01,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 15:35:01,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 413 transitions. [2023-08-25 15:35:01,289 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3704035874439462 [2023-08-25 15:35:01,289 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 413 transitions. [2023-08-25 15:35:01,289 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 413 transitions. [2023-08-25 15:35:01,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 15:35:01,290 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 413 transitions. [2023-08-25 15:35:01,290 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 82.6) internal successors, (413), 5 states have internal predecessors, (413), 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 15:35:01,292 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 223.0) internal successors, (1338), 6 states have internal predecessors, (1338), 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 15:35:01,292 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 223.0) internal successors, (1338), 6 states have internal predecessors, (1338), 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 15:35:01,292 INFO L175 Difference]: Start difference. First operand has 35 places, 24 transitions, 119 flow. Second operand 5 states and 413 transitions. [2023-08-25 15:35:01,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 41 transitions, 273 flow [2023-08-25 15:35:01,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 41 transitions, 251 flow, removed 5 selfloop flow, removed 2 redundant places. [2023-08-25 15:35:01,294 INFO L231 Difference]: Finished difference. Result has 38 places, 22 transitions, 126 flow [2023-08-25 15:35:01,294 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=223, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=126, PETRI_PLACES=38, PETRI_TRANSITIONS=22} [2023-08-25 15:35:01,296 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -10 predicate places. [2023-08-25 15:35:01,296 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 22 transitions, 126 flow [2023-08-25 15:35:01,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 77.8) internal successors, (389), 5 states have internal predecessors, (389), 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 15:35:01,296 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 15:35:01,296 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 15:35:01,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 15:35:01,297 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 15:35:01,297 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 15:35:01,297 INFO L85 PathProgramCache]: Analyzing trace with hash -628577308, now seen corresponding path program 1 times [2023-08-25 15:35:01,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 15:35:01,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284034506] [2023-08-25 15:35:01,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 15:35:01,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 15:35:01,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 15:35:01,337 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 15:35:01,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 15:35:01,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284034506] [2023-08-25 15:35:01,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284034506] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 15:35:01,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 15:35:01,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 15:35:01,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639186309] [2023-08-25 15:35:01,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 15:35:01,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 15:35:01,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 15:35:01,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 15:35:01,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 15:35:01,339 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 223 [2023-08-25 15:35:01,356 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 22 transitions, 126 flow. Second operand has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 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 15:35:01,356 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 15:35:01,356 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 223 [2023-08-25 15:35:01,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 15:35:01,381 INFO L124 PetriNetUnfolderBase]: 19/50 cut-off events. [2023-08-25 15:35:01,381 INFO L125 PetriNetUnfolderBase]: For 92/92 co-relation queries the response was YES. [2023-08-25 15:35:01,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 50 events. 19/50 cut-off events. For 92/92 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 78 event pairs, 5 based on Foata normal form. 1/51 useless extension candidates. Maximal degree in co-relation 192. Up to 27 conditions per place. [2023-08-25 15:35:01,381 INFO L140 encePairwiseOnDemand]: 220/223 looper letters, 0 selfloop transitions, 0 changer transitions 27/27 dead transitions. [2023-08-25 15:35:01,382 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 27 transitions, 212 flow [2023-08-25 15:35:01,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 15:35:01,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 15:35:01,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 316 transitions. [2023-08-25 15:35:01,383 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3542600896860987 [2023-08-25 15:35:01,383 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 316 transitions. [2023-08-25 15:35:01,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 316 transitions. [2023-08-25 15:35:01,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 15:35:01,383 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 316 transitions. [2023-08-25 15:35:01,384 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 79.0) internal successors, (316), 4 states have internal predecessors, (316), 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 15:35:01,384 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 223.0) internal successors, (1115), 5 states have internal predecessors, (1115), 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 15:35:01,385 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 223.0) internal successors, (1115), 5 states have internal predecessors, (1115), 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 15:35:01,385 INFO L175 Difference]: Start difference. First operand has 38 places, 22 transitions, 126 flow. Second operand 4 states and 316 transitions. [2023-08-25 15:35:01,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 27 transitions, 212 flow [2023-08-25 15:35:01,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 27 transitions, 172 flow, removed 6 selfloop flow, removed 7 redundant places. [2023-08-25 15:35:01,386 INFO L231 Difference]: Finished difference. Result has 33 places, 0 transitions, 0 flow [2023-08-25 15:35:01,386 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=223, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=33, PETRI_TRANSITIONS=0} [2023-08-25 15:35:01,386 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -15 predicate places. [2023-08-25 15:35:01,386 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 0 transitions, 0 flow [2023-08-25 15:35:01,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 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 15:35:01,388 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONDATA_RACE (37 of 38 remaining) [2023-08-25 15:35:01,388 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONDATA_RACE (36 of 38 remaining) [2023-08-25 15:35:01,388 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err2ASSERT_VIOLATIONDATA_RACE (35 of 38 remaining) [2023-08-25 15:35:01,388 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err3ASSERT_VIOLATIONDATA_RACE (34 of 38 remaining) [2023-08-25 15:35:01,389 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err4ASSERT_VIOLATIONDATA_RACE (33 of 38 remaining) [2023-08-25 15:35:01,389 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONDATA_RACE (32 of 38 remaining) [2023-08-25 15:35:01,389 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONDATA_RACE (31 of 38 remaining) [2023-08-25 15:35:01,389 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err2ASSERT_VIOLATIONDATA_RACE (30 of 38 remaining) [2023-08-25 15:35:01,389 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONDATA_RACE (29 of 38 remaining) [2023-08-25 15:35:01,389 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONDATA_RACE (28 of 38 remaining) [2023-08-25 15:35:01,389 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err2ASSERT_VIOLATIONDATA_RACE (27 of 38 remaining) [2023-08-25 15:35:01,389 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err3ASSERT_VIOLATIONDATA_RACE (26 of 38 remaining) [2023-08-25 15:35:01,389 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err4ASSERT_VIOLATIONDATA_RACE (25 of 38 remaining) [2023-08-25 15:35:01,389 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (24 of 38 remaining) [2023-08-25 15:35:01,389 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (23 of 38 remaining) [2023-08-25 15:35:01,390 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (22 of 38 remaining) [2023-08-25 15:35:01,390 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (21 of 38 remaining) [2023-08-25 15:35:01,390 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (20 of 38 remaining) [2023-08-25 15:35:01,390 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (19 of 38 remaining) [2023-08-25 15:35:01,390 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (18 of 38 remaining) [2023-08-25 15:35:01,390 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (17 of 38 remaining) [2023-08-25 15:35:01,390 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONASSERT (16 of 38 remaining) [2023-08-25 15:35:01,390 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 38 remaining) [2023-08-25 15:35:01,390 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 38 remaining) [2023-08-25 15:35:01,390 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 38 remaining) [2023-08-25 15:35:01,390 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONDATA_RACE (12 of 38 remaining) [2023-08-25 15:35:01,390 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONDATA_RACE (11 of 38 remaining) [2023-08-25 15:35:01,390 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err2ASSERT_VIOLATIONDATA_RACE (10 of 38 remaining) [2023-08-25 15:35:01,391 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err3ASSERT_VIOLATIONDATA_RACE (9 of 38 remaining) [2023-08-25 15:35:01,391 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err4ASSERT_VIOLATIONDATA_RACE (8 of 38 remaining) [2023-08-25 15:35:01,391 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONDATA_RACE (7 of 38 remaining) [2023-08-25 15:35:01,391 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONDATA_RACE (6 of 38 remaining) [2023-08-25 15:35:01,391 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err2ASSERT_VIOLATIONDATA_RACE (5 of 38 remaining) [2023-08-25 15:35:01,391 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONDATA_RACE (4 of 38 remaining) [2023-08-25 15:35:01,391 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONDATA_RACE (3 of 38 remaining) [2023-08-25 15:35:01,391 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err2ASSERT_VIOLATIONDATA_RACE (2 of 38 remaining) [2023-08-25 15:35:01,391 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err3ASSERT_VIOLATIONDATA_RACE (1 of 38 remaining) [2023-08-25 15:35:01,391 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err4ASSERT_VIOLATIONDATA_RACE (0 of 38 remaining) [2023-08-25 15:35:01,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 15:35:01,392 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 15:35:01,395 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 15:35:01,395 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 15:35:01,397 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 03:35:01 BasicIcfg [2023-08-25 15:35:01,397 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 15:35:01,397 INFO L158 Benchmark]: Toolchain (without parser) took 4925.84ms. Allocated memory was 379.6MB in the beginning and 492.8MB in the end (delta: 113.2MB). Free memory was 354.4MB in the beginning and 455.4MB in the end (delta: -100.9MB). Peak memory consumption was 13.9MB. Max. memory is 16.0GB. [2023-08-25 15:35:01,397 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 379.6MB. Free memory was 357.5MB in the beginning and 357.5MB in the end (delta: 91.9kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 15:35:01,397 INFO L158 Benchmark]: CACSL2BoogieTranslator took 347.36ms. Allocated memory is still 379.6MB. Free memory was 354.4MB in the beginning and 334.0MB in the end (delta: 20.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-25 15:35:01,397 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.19ms. Allocated memory is still 379.6MB. Free memory was 334.0MB in the beginning and 331.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 15:35:01,398 INFO L158 Benchmark]: Boogie Preprocessor took 34.99ms. Allocated memory is still 379.6MB. Free memory was 331.9MB in the beginning and 330.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 15:35:01,398 INFO L158 Benchmark]: RCFGBuilder took 459.57ms. Allocated memory is still 379.6MB. Free memory was 329.8MB in the beginning and 301.5MB in the end (delta: 28.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.0GB. [2023-08-25 15:35:01,398 INFO L158 Benchmark]: TraceAbstraction took 4032.69ms. Allocated memory was 379.6MB in the beginning and 492.8MB in the end (delta: 113.2MB). Free memory was 301.0MB in the beginning and 455.4MB in the end (delta: -154.4MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 15:35:01,399 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 379.6MB. Free memory was 357.5MB in the beginning and 357.5MB in the end (delta: 91.9kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 347.36ms. Allocated memory is still 379.6MB. Free memory was 354.4MB in the beginning and 334.0MB in the end (delta: 20.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 47.19ms. Allocated memory is still 379.6MB. Free memory was 334.0MB in the beginning and 331.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 34.99ms. Allocated memory is still 379.6MB. Free memory was 331.9MB in the beginning and 330.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 459.57ms. Allocated memory is still 379.6MB. Free memory was 329.8MB in the beginning and 301.5MB in the end (delta: 28.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.0GB. * TraceAbstraction took 4032.69ms. Allocated memory was 379.6MB in the beginning and 492.8MB in the end (delta: 113.2MB). Free memory was 301.0MB in the beginning and 455.4MB in the end (delta: -154.4MB). There was no memory consumed. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 267]: Unsoundness Warning unspecified type, defaulting to int C: short [267] - GenericResultAtLocation [Line: 267]: Unsoundness Warning unspecified type, defaulting to int C: short [267] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.6s, 116 PlacesBefore, 48 PlacesAfterwards, 109 TransitionsBefore, 39 TransitionsAfterwards, 3654 CoEnabledTransitionPairs, 8 FixpointIterations, 19 TrivialSequentialCompositions, 76 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 14 ConcurrentYvCompositions, 2 ChoiceCompositions, 111 TotalNumberOfCompositions, 13097 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6355, independent: 6079, independent conditional: 0, independent unconditional: 6079, dependent: 276, dependent conditional: 0, dependent unconditional: 276, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2082, independent: 2025, independent conditional: 0, independent unconditional: 2025, dependent: 57, dependent conditional: 0, dependent unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 6355, independent: 4054, independent conditional: 0, independent unconditional: 4054, dependent: 219, dependent conditional: 0, dependent unconditional: 219, unknown: 2082, unknown conditional: 0, unknown unconditional: 2082] , Statistics on independence cache: Total cache size (in pairs): 219, Positive cache size: 197, Positive conditional cache size: 0, Positive unconditional cache size: 197, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22, 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: 728]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 728]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 733]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 733]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 740]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 745]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 745]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 752]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 752]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 755]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 760]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 760]: 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: 782]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 784]: 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: 788]: 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: 788]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 790]: 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: 4.0s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 78 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 78 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 301 IncrementalHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 0 mSDtfsCounter, 301 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=126occurred in iteration=8, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 87 ConstructedInterpolants, 0 QuantifiedInterpolants, 223 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 15:35:01,415 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...