/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/safe000_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 13:50:30,498 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 13:50:30,545 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 13:50:30,549 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 13:50:30,550 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 13:50:30,568 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 13:50:30,569 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 13:50:30,569 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 13:50:30,569 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 13:50:30,570 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 13:50:30,570 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 13:50:30,571 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 13:50:30,571 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 13:50:30,571 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 13:50:30,572 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 13:50:30,572 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 13:50:30,573 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 13:50:30,573 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 13:50:30,573 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 13:50:30,574 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 13:50:30,574 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 13:50:30,574 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 13:50:30,575 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 13:50:30,575 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 13:50:30,575 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 13:50:30,576 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 13:50:30,576 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 13:50:30,576 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 13:50:30,577 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 13:50:30,577 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 13:50:30,577 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 13:50:30,578 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 13:50:30,578 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 13:50:30,578 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 13:50:30,579 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 13:50:30,579 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 13:50:30,894 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 13:50:30,913 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 13:50:30,915 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 13:50:30,916 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 13:50:30,918 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 13:50:30,923 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe000_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-25 13:50:32,198 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 13:50:32,420 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 13:50:32,421 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe000_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-25 13:50:32,432 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20dff2751/dfaeb70d2d8c45dcaff0a433cbac5cec/FLAG67f54c215 [2023-08-25 13:50:32,443 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20dff2751/dfaeb70d2d8c45dcaff0a433cbac5cec [2023-08-25 13:50:32,445 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 13:50:32,446 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 13:50:32,447 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 13:50:32,447 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 13:50:32,449 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 13:50:32,450 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 01:50:32" (1/1) ... [2023-08-25 13:50:32,450 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57e09598 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 01:50:32, skipping insertion in model container [2023-08-25 13:50:32,451 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 01:50:32" (1/1) ... [2023-08-25 13:50:32,485 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 13:50:32,712 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 13:50:32,720 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 13:50:32,737 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-25 13:50:32,739 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-25 13:50:32,756 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 13:50:32,796 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 13:50:32,796 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 13:50:32,802 INFO L206 MainTranslator]: Completed translation [2023-08-25 13:50:32,804 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 01:50:32 WrapperNode [2023-08-25 13:50:32,804 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 13:50:32,805 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 13:50:32,805 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 13:50:32,805 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 13:50:32,811 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 01:50:32" (1/1) ... [2023-08-25 13:50:32,840 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 01:50:32" (1/1) ... [2023-08-25 13:50:32,865 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 108 [2023-08-25 13:50:32,866 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 13:50:32,867 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 13:50:32,867 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 13:50:32,867 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 13:50:32,874 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 01:50:32" (1/1) ... [2023-08-25 13:50:32,874 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 01:50:32" (1/1) ... [2023-08-25 13:50:32,890 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 01:50:32" (1/1) ... [2023-08-25 13:50:32,890 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 01:50:32" (1/1) ... [2023-08-25 13:50:32,902 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 01:50:32" (1/1) ... [2023-08-25 13:50:32,904 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 01:50:32" (1/1) ... [2023-08-25 13:50:32,905 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 01:50:32" (1/1) ... [2023-08-25 13:50:32,906 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 01:50:32" (1/1) ... [2023-08-25 13:50:32,908 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 13:50:32,909 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 13:50:32,909 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 13:50:32,910 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 13:50:32,910 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 01:50:32" (1/1) ... [2023-08-25 13:50:32,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 13:50:32,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 13:50:32,954 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 13:50:32,979 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 13:50:32,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 13:50:32,992 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-25 13:50:32,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 13:50:32,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 13:50:32,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 13:50:32,992 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-25 13:50:32,993 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-25 13:50:32,993 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-25 13:50:32,993 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-25 13:50:32,993 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-25 13:50:32,993 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-25 13:50:32,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 13:50:32,993 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-25 13:50:32,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 13:50:32,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 13:50:32,996 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 13:50:33,130 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 13:50:33,131 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 13:50:33,442 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 13:50:33,556 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 13:50:33,556 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 13:50:33,558 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 01:50:33 BoogieIcfgContainer [2023-08-25 13:50:33,558 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 13:50:33,560 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 13:50:33,560 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 13:50:33,563 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 13:50:33,563 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 01:50:32" (1/3) ... [2023-08-25 13:50:33,564 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b2eba6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 01:50:33, skipping insertion in model container [2023-08-25 13:50:33,564 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 01:50:32" (2/3) ... [2023-08-25 13:50:33,564 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b2eba6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 01:50:33, skipping insertion in model container [2023-08-25 13:50:33,564 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 01:50:33" (3/3) ... [2023-08-25 13:50:33,565 INFO L112 eAbstractionObserver]: Analyzing ICFG safe000_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-25 13:50:33,579 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 13:50:33,580 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 25 error locations. [2023-08-25 13:50:33,580 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 13:50:33,618 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 13:50:33,647 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 124 places, 117 transitions, 249 flow [2023-08-25 13:50:33,686 INFO L124 PetriNetUnfolderBase]: 3/114 cut-off events. [2023-08-25 13:50:33,687 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 13:50:33,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 114 events. 3/114 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 141 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 96. Up to 2 conditions per place. [2023-08-25 13:50:33,692 INFO L82 GeneralOperation]: Start removeDead. Operand has 124 places, 117 transitions, 249 flow [2023-08-25 13:50:33,696 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 121 places, 114 transitions, 237 flow [2023-08-25 13:50:33,699 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 13:50:33,706 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 121 places, 114 transitions, 237 flow [2023-08-25 13:50:33,709 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 121 places, 114 transitions, 237 flow [2023-08-25 13:50:33,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 121 places, 114 transitions, 237 flow [2023-08-25 13:50:33,730 INFO L124 PetriNetUnfolderBase]: 3/114 cut-off events. [2023-08-25 13:50:33,730 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 13:50:33,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 114 events. 3/114 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 144 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 96. Up to 2 conditions per place. [2023-08-25 13:50:33,734 INFO L119 LiptonReduction]: Number of co-enabled transitions 4158 [2023-08-25 13:50:38,252 INFO L134 LiptonReduction]: Checked pairs total: 15342 [2023-08-25 13:50:38,253 INFO L136 LiptonReduction]: Total number of compositions: 110 [2023-08-25 13:50:38,265 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 13:50:38,270 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;@7ae6417a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 13:50:38,270 INFO L358 AbstractCegarLoop]: Starting to check reachability of 43 error locations. [2023-08-25 13:50:38,273 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 13:50:38,273 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-08-25 13:50:38,273 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 13:50:38,273 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 13:50:38,274 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-25 13:50:38,274 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err1ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-25 13:50:38,278 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 13:50:38,278 INFO L85 PathProgramCache]: Analyzing trace with hash 617236, now seen corresponding path program 1 times [2023-08-25 13:50:38,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 13:50:38,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806666290] [2023-08-25 13:50:38,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 13:50:38,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 13:50:38,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 13:50:38,412 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 13:50:38,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 13:50:38,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806666290] [2023-08-25 13:50:38,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806666290] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 13:50:38,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 13:50:38,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 13:50:38,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136219308] [2023-08-25 13:50:38,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 13:50:38,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 13:50:38,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 13:50:38,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 13:50:38,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 13:50:38,443 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 227 [2023-08-25 13:50:38,445 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 42 transitions, 93 flow. Second operand has 2 states, 2 states have (on average 78.5) internal successors, (157), 2 states have internal predecessors, (157), 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 13:50:38,445 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 13:50:38,445 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 227 [2023-08-25 13:50:38,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 13:50:38,602 INFO L124 PetriNetUnfolderBase]: 567/864 cut-off events. [2023-08-25 13:50:38,602 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2023-08-25 13:50:38,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1775 conditions, 864 events. 567/864 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 3184 event pairs, 567 based on Foata normal form. 0/800 useless extension candidates. Maximal degree in co-relation 1764. Up to 865 conditions per place. [2023-08-25 13:50:38,609 INFO L140 encePairwiseOnDemand]: 203/227 looper letters, 17 selfloop transitions, 0 changer transitions 1/18 dead transitions. [2023-08-25 13:50:38,609 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 18 transitions, 81 flow [2023-08-25 13:50:38,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 13:50:38,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 13:50:38,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 196 transitions. [2023-08-25 13:50:38,619 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43171806167400884 [2023-08-25 13:50:38,620 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 196 transitions. [2023-08-25 13:50:38,620 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 196 transitions. [2023-08-25 13:50:38,621 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 13:50:38,623 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 196 transitions. [2023-08-25 13:50:38,625 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 98.0) internal successors, (196), 2 states have internal predecessors, (196), 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 13:50:38,628 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 227.0) internal successors, (681), 3 states have internal predecessors, (681), 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 13:50:38,629 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 227.0) internal successors, (681), 3 states have internal predecessors, (681), 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 13:50:38,630 INFO L175 Difference]: Start difference. First operand has 52 places, 42 transitions, 93 flow. Second operand 2 states and 196 transitions. [2023-08-25 13:50:38,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 18 transitions, 81 flow [2023-08-25 13:50:38,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 18 transitions, 78 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-25 13:50:38,634 INFO L231 Difference]: Finished difference. Result has 26 places, 17 transitions, 40 flow [2023-08-25 13:50:38,636 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=227, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=40, PETRI_PLACES=26, PETRI_TRANSITIONS=17} [2023-08-25 13:50:38,639 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -26 predicate places. [2023-08-25 13:50:38,639 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 17 transitions, 40 flow [2023-08-25 13:50:38,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 78.5) internal successors, (157), 2 states have internal predecessors, (157), 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 13:50:38,639 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 13:50:38,640 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 13:50:38,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 13:50:38,640 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-25 13:50:38,641 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 13:50:38,641 INFO L85 PathProgramCache]: Analyzing trace with hash -974837404, now seen corresponding path program 1 times [2023-08-25 13:50:38,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 13:50:38,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270500637] [2023-08-25 13:50:38,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 13:50:38,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 13:50:38,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 13:50:38,799 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 13:50:38,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 13:50:38,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270500637] [2023-08-25 13:50:38,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270500637] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 13:50:38,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 13:50:38,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 13:50:38,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949643942] [2023-08-25 13:50:38,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 13:50:38,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 13:50:38,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 13:50:38,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 13:50:38,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 13:50:38,803 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 227 [2023-08-25 13:50:38,803 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 17 transitions, 40 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 13:50:38,804 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 13:50:38,804 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 227 [2023-08-25 13:50:38,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 13:50:38,894 INFO L124 PetriNetUnfolderBase]: 383/600 cut-off events. [2023-08-25 13:50:38,895 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 13:50:38,897 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1245 conditions, 600 events. 383/600 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2234 event pairs, 77 based on Foata normal form. 16/616 useless extension candidates. Maximal degree in co-relation 1242. Up to 507 conditions per place. [2023-08-25 13:50:38,899 INFO L140 encePairwiseOnDemand]: 224/227 looper letters, 24 selfloop transitions, 2 changer transitions 0/26 dead transitions. [2023-08-25 13:50:38,900 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 26 transitions, 112 flow [2023-08-25 13:50:38,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 13:50:38,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 13:50:38,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 255 transitions. [2023-08-25 13:50:38,905 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3744493392070485 [2023-08-25 13:50:38,905 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 255 transitions. [2023-08-25 13:50:38,905 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 255 transitions. [2023-08-25 13:50:38,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 13:50:38,907 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 255 transitions. [2023-08-25 13:50:38,908 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 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 13:50:38,911 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 227.0) internal successors, (908), 4 states have internal predecessors, (908), 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 13:50:38,912 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 227.0) internal successors, (908), 4 states have internal predecessors, (908), 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 13:50:38,912 INFO L175 Difference]: Start difference. First operand has 26 places, 17 transitions, 40 flow. Second operand 3 states and 255 transitions. [2023-08-25 13:50:38,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 26 transitions, 112 flow [2023-08-25 13:50:38,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 26 transitions, 112 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 13:50:38,914 INFO L231 Difference]: Finished difference. Result has 28 places, 17 transitions, 48 flow [2023-08-25 13:50:38,914 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=227, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=48, PETRI_PLACES=28, PETRI_TRANSITIONS=17} [2023-08-25 13:50:38,915 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -24 predicate places. [2023-08-25 13:50:38,916 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 17 transitions, 48 flow [2023-08-25 13:50:38,918 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 13:50:38,919 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 13:50:38,919 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 13:50:38,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 13:50:38,923 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-25 13:50:38,926 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 13:50:38,926 INFO L85 PathProgramCache]: Analyzing trace with hash -155189565, now seen corresponding path program 1 times [2023-08-25 13:50:38,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 13:50:38,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303573058] [2023-08-25 13:50:38,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 13:50:38,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 13:50:38,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 13:50:39,046 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 13:50:39,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 13:50:39,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303573058] [2023-08-25 13:50:39,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303573058] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 13:50:39,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 13:50:39,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 13:50:39,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329427739] [2023-08-25 13:50:39,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 13:50:39,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 13:50:39,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 13:50:39,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 13:50:39,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 13:50:39,050 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 227 [2023-08-25 13:50:39,050 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 17 transitions, 48 flow. Second operand has 4 states, 4 states have (on average 77.25) internal successors, (309), 4 states have internal predecessors, (309), 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 13:50:39,050 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 13:50:39,050 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 227 [2023-08-25 13:50:39,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 13:50:39,163 INFO L124 PetriNetUnfolderBase]: 407/660 cut-off events. [2023-08-25 13:50:39,163 INFO L125 PetriNetUnfolderBase]: For 94/94 co-relation queries the response was YES. [2023-08-25 13:50:39,164 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1484 conditions, 660 events. 407/660 cut-off events. For 94/94 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2712 event pairs, 135 based on Foata normal form. 48/708 useless extension candidates. Maximal degree in co-relation 1479. Up to 233 conditions per place. [2023-08-25 13:50:39,166 INFO L140 encePairwiseOnDemand]: 223/227 looper letters, 29 selfloop transitions, 3 changer transitions 5/37 dead transitions. [2023-08-25 13:50:39,166 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 37 transitions, 171 flow [2023-08-25 13:50:39,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 13:50:39,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 13:50:39,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 339 transitions. [2023-08-25 13:50:39,169 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3733480176211454 [2023-08-25 13:50:39,169 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 339 transitions. [2023-08-25 13:50:39,169 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 339 transitions. [2023-08-25 13:50:39,169 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 13:50:39,169 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 339 transitions. [2023-08-25 13:50:39,171 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 84.75) internal successors, (339), 4 states have internal predecessors, (339), 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 13:50:39,173 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 227.0) internal successors, (1135), 5 states have internal predecessors, (1135), 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 13:50:39,174 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 227.0) internal successors, (1135), 5 states have internal predecessors, (1135), 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 13:50:39,174 INFO L175 Difference]: Start difference. First operand has 28 places, 17 transitions, 48 flow. Second operand 4 states and 339 transitions. [2023-08-25 13:50:39,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 37 transitions, 171 flow [2023-08-25 13:50:39,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 37 transitions, 165 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 13:50:39,176 INFO L231 Difference]: Finished difference. Result has 31 places, 17 transitions, 58 flow [2023-08-25 13:50:39,177 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=227, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=58, PETRI_PLACES=31, PETRI_TRANSITIONS=17} [2023-08-25 13:50:39,178 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -21 predicate places. [2023-08-25 13:50:39,178 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 17 transitions, 58 flow [2023-08-25 13:50:39,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.25) internal successors, (309), 4 states have internal predecessors, (309), 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 13:50:39,178 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 13:50:39,178 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 13:50:39,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 13:50:39,182 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-25 13:50:39,182 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 13:50:39,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1908410541, now seen corresponding path program 1 times [2023-08-25 13:50:39,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 13:50:39,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986293306] [2023-08-25 13:50:39,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 13:50:39,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 13:50:39,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 13:50:39,266 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 13:50:39,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 13:50:39,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986293306] [2023-08-25 13:50:39,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986293306] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 13:50:39,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 13:50:39,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 13:50:39,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915292563] [2023-08-25 13:50:39,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 13:50:39,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 13:50:39,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 13:50:39,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 13:50:39,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 13:50:39,271 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 227 [2023-08-25 13:50:39,272 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 17 transitions, 58 flow. Second operand has 4 states, 4 states have (on average 77.75) internal successors, (311), 4 states have internal predecessors, (311), 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 13:50:39,272 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 13:50:39,272 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 227 [2023-08-25 13:50:39,272 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 13:50:39,372 INFO L124 PetriNetUnfolderBase]: 211/368 cut-off events. [2023-08-25 13:50:39,372 INFO L125 PetriNetUnfolderBase]: For 245/245 co-relation queries the response was YES. [2023-08-25 13:50:39,373 INFO L83 FinitePrefix]: Finished finitePrefix Result has 926 conditions, 368 events. 211/368 cut-off events. For 245/245 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1239 event pairs, 77 based on Foata normal form. 24/392 useless extension candidates. Maximal degree in co-relation 919. Up to 164 conditions per place. [2023-08-25 13:50:39,373 INFO L140 encePairwiseOnDemand]: 222/227 looper letters, 17 selfloop transitions, 3 changer transitions 14/34 dead transitions. [2023-08-25 13:50:39,373 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 34 transitions, 178 flow [2023-08-25 13:50:39,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 13:50:39,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 13:50:39,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 336 transitions. [2023-08-25 13:50:39,378 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3700440528634361 [2023-08-25 13:50:39,378 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 336 transitions. [2023-08-25 13:50:39,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 336 transitions. [2023-08-25 13:50:39,378 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 13:50:39,378 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 336 transitions. [2023-08-25 13:50:39,379 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 84.0) internal successors, (336), 4 states have internal predecessors, (336), 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 13:50:39,381 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 227.0) internal successors, (1135), 5 states have internal predecessors, (1135), 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 13:50:39,381 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 227.0) internal successors, (1135), 5 states have internal predecessors, (1135), 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 13:50:39,381 INFO L175 Difference]: Start difference. First operand has 31 places, 17 transitions, 58 flow. Second operand 4 states and 336 transitions. [2023-08-25 13:50:39,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 34 transitions, 178 flow [2023-08-25 13:50:39,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 34 transitions, 156 flow, removed 2 selfloop flow, removed 4 redundant places. [2023-08-25 13:50:39,384 INFO L231 Difference]: Finished difference. Result has 32 places, 17 transitions, 62 flow [2023-08-25 13:50:39,384 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=227, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=62, PETRI_PLACES=32, PETRI_TRANSITIONS=17} [2023-08-25 13:50:39,385 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -20 predicate places. [2023-08-25 13:50:39,385 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 17 transitions, 62 flow [2023-08-25 13:50:39,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.75) internal successors, (311), 4 states have internal predecessors, (311), 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 13:50:39,385 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 13:50:39,386 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 13:50:39,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 13:50:39,386 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-08-25 13:50:39,386 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 13:50:39,386 INFO L85 PathProgramCache]: Analyzing trace with hash 148804989, now seen corresponding path program 1 times [2023-08-25 13:50:39,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 13:50:39,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363470803] [2023-08-25 13:50:39,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 13:50:39,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 13:50:39,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 13:50:39,478 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 13:50:39,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 13:50:39,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363470803] [2023-08-25 13:50:39,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363470803] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 13:50:39,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 13:50:39,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 13:50:39,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222724932] [2023-08-25 13:50:39,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 13:50:39,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 13:50:39,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 13:50:39,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 13:50:39,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 13:50:39,481 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 227 [2023-08-25 13:50:39,481 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 17 transitions, 62 flow. Second operand has 4 states, 4 states have (on average 78.25) internal successors, (313), 4 states have internal predecessors, (313), 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 13:50:39,482 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 13:50:39,482 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 227 [2023-08-25 13:50:39,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 13:50:39,517 INFO L124 PetriNetUnfolderBase]: 51/100 cut-off events. [2023-08-25 13:50:39,518 INFO L125 PetriNetUnfolderBase]: For 58/58 co-relation queries the response was YES. [2023-08-25 13:50:39,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 246 conditions, 100 events. 51/100 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 212 event pairs, 31 based on Foata normal form. 12/112 useless extension candidates. Maximal degree in co-relation 239. Up to 90 conditions per place. [2023-08-25 13:50:39,518 INFO L140 encePairwiseOnDemand]: 224/227 looper letters, 0 selfloop transitions, 0 changer transitions 17/17 dead transitions. [2023-08-25 13:50:39,518 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 17 transitions, 90 flow [2023-08-25 13:50:39,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 13:50:39,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 13:50:39,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 318 transitions. [2023-08-25 13:50:39,520 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3502202643171806 [2023-08-25 13:50:39,520 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 318 transitions. [2023-08-25 13:50:39,520 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 318 transitions. [2023-08-25 13:50:39,520 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 13:50:39,520 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 318 transitions. [2023-08-25 13:50:39,521 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 79.5) internal successors, (318), 4 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 13:50:39,522 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 227.0) internal successors, (1135), 5 states have internal predecessors, (1135), 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 13:50:39,523 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 227.0) internal successors, (1135), 5 states have internal predecessors, (1135), 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 13:50:39,523 INFO L175 Difference]: Start difference. First operand has 32 places, 17 transitions, 62 flow. Second operand 4 states and 318 transitions. [2023-08-25 13:50:39,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 17 transitions, 90 flow [2023-08-25 13:50:39,524 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 17 transitions, 74 flow, removed 1 selfloop flow, removed 7 redundant places. [2023-08-25 13:50:39,524 INFO L231 Difference]: Finished difference. Result has 27 places, 0 transitions, 0 flow [2023-08-25 13:50:39,524 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=227, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=27, PETRI_TRANSITIONS=0} [2023-08-25 13:50:39,524 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -25 predicate places. [2023-08-25 13:50:39,525 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 0 transitions, 0 flow [2023-08-25 13:50:39,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.25) internal successors, (313), 4 states have internal predecessors, (313), 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 13:50:39,527 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONDATA_RACE (42 of 43 remaining) [2023-08-25 13:50:39,527 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONDATA_RACE (41 of 43 remaining) [2023-08-25 13:50:39,527 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err2ASSERT_VIOLATIONDATA_RACE (40 of 43 remaining) [2023-08-25 13:50:39,528 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err3ASSERT_VIOLATIONDATA_RACE (39 of 43 remaining) [2023-08-25 13:50:39,528 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err4ASSERT_VIOLATIONDATA_RACE (38 of 43 remaining) [2023-08-25 13:50:39,528 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONDATA_RACE (37 of 43 remaining) [2023-08-25 13:50:39,528 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONDATA_RACE (36 of 43 remaining) [2023-08-25 13:50:39,528 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err2ASSERT_VIOLATIONDATA_RACE (35 of 43 remaining) [2023-08-25 13:50:39,528 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err3ASSERT_VIOLATIONDATA_RACE (34 of 43 remaining) [2023-08-25 13:50:39,528 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err4ASSERT_VIOLATIONDATA_RACE (33 of 43 remaining) [2023-08-25 13:50:39,529 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONDATA_RACE (32 of 43 remaining) [2023-08-25 13:50:39,529 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONDATA_RACE (31 of 43 remaining) [2023-08-25 13:50:39,529 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err2ASSERT_VIOLATIONDATA_RACE (30 of 43 remaining) [2023-08-25 13:50:39,529 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err3ASSERT_VIOLATIONDATA_RACE (29 of 43 remaining) [2023-08-25 13:50:39,529 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err4ASSERT_VIOLATIONDATA_RACE (28 of 43 remaining) [2023-08-25 13:50:39,529 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (27 of 43 remaining) [2023-08-25 13:50:39,529 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (26 of 43 remaining) [2023-08-25 13:50:39,530 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (25 of 43 remaining) [2023-08-25 13:50:39,530 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (24 of 43 remaining) [2023-08-25 13:50:39,530 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (23 of 43 remaining) [2023-08-25 13:50:39,530 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (22 of 43 remaining) [2023-08-25 13:50:39,530 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (21 of 43 remaining) [2023-08-25 13:50:39,530 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (20 of 43 remaining) [2023-08-25 13:50:39,530 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (19 of 43 remaining) [2023-08-25 13:50:39,530 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONASSERT (18 of 43 remaining) [2023-08-25 13:50:39,531 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 43 remaining) [2023-08-25 13:50:39,531 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 43 remaining) [2023-08-25 13:50:39,531 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 43 remaining) [2023-08-25 13:50:39,531 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONDATA_RACE (14 of 43 remaining) [2023-08-25 13:50:39,531 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONDATA_RACE (13 of 43 remaining) [2023-08-25 13:50:39,531 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err2ASSERT_VIOLATIONDATA_RACE (12 of 43 remaining) [2023-08-25 13:50:39,531 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err3ASSERT_VIOLATIONDATA_RACE (11 of 43 remaining) [2023-08-25 13:50:39,532 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err4ASSERT_VIOLATIONDATA_RACE (10 of 43 remaining) [2023-08-25 13:50:39,532 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONDATA_RACE (9 of 43 remaining) [2023-08-25 13:50:39,532 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONDATA_RACE (8 of 43 remaining) [2023-08-25 13:50:39,532 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err2ASSERT_VIOLATIONDATA_RACE (7 of 43 remaining) [2023-08-25 13:50:39,532 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err3ASSERT_VIOLATIONDATA_RACE (6 of 43 remaining) [2023-08-25 13:50:39,532 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err4ASSERT_VIOLATIONDATA_RACE (5 of 43 remaining) [2023-08-25 13:50:39,532 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONDATA_RACE (4 of 43 remaining) [2023-08-25 13:50:39,532 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONDATA_RACE (3 of 43 remaining) [2023-08-25 13:50:39,533 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err2ASSERT_VIOLATIONDATA_RACE (2 of 43 remaining) [2023-08-25 13:50:39,533 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err3ASSERT_VIOLATIONDATA_RACE (1 of 43 remaining) [2023-08-25 13:50:39,533 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err4ASSERT_VIOLATIONDATA_RACE (0 of 43 remaining) [2023-08-25 13:50:39,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 13:50:39,533 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-08-25 13:50:39,537 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 13:50:39,537 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 13:50:39,540 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 01:50:39 BasicIcfg [2023-08-25 13:50:39,540 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 13:50:39,540 INFO L158 Benchmark]: Toolchain (without parser) took 7094.55ms. Allocated memory was 356.5MB in the beginning and 559.9MB in the end (delta: 203.4MB). Free memory was 314.6MB in the beginning and 497.8MB in the end (delta: -183.1MB). Peak memory consumption was 21.3MB. Max. memory is 16.0GB. [2023-08-25 13:50:39,541 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 356.5MB. Free memory was 334.5MB in the beginning and 334.3MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 13:50:39,541 INFO L158 Benchmark]: CACSL2BoogieTranslator took 357.64ms. Allocated memory is still 356.5MB. Free memory was 314.6MB in the beginning and 293.6MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-08-25 13:50:39,541 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.75ms. Allocated memory is still 356.5MB. Free memory was 293.6MB in the beginning and 291.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 13:50:39,541 INFO L158 Benchmark]: Boogie Preprocessor took 41.59ms. Allocated memory is still 356.5MB. Free memory was 291.6MB in the beginning and 290.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 13:50:39,542 INFO L158 Benchmark]: RCFGBuilder took 649.07ms. Allocated memory is still 356.5MB. Free memory was 289.5MB in the beginning and 255.9MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.0GB. [2023-08-25 13:50:39,542 INFO L158 Benchmark]: TraceAbstraction took 5979.79ms. Allocated memory was 356.5MB in the beginning and 559.9MB in the end (delta: 203.4MB). Free memory was 255.9MB in the beginning and 497.8MB in the end (delta: -241.8MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 13:50:39,543 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 356.5MB. Free memory was 334.5MB in the beginning and 334.3MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 357.64ms. Allocated memory is still 356.5MB. Free memory was 314.6MB in the beginning and 293.6MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 60.75ms. Allocated memory is still 356.5MB. Free memory was 293.6MB in the beginning and 291.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 41.59ms. Allocated memory is still 356.5MB. Free memory was 291.6MB in the beginning and 290.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 649.07ms. Allocated memory is still 356.5MB. Free memory was 289.5MB in the beginning and 255.9MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.0GB. * TraceAbstraction took 5979.79ms. Allocated memory was 356.5MB in the beginning and 559.9MB in the end (delta: 203.4MB). Free memory was 255.9MB in the beginning and 497.8MB in the end (delta: -241.8MB). 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: 4.5s, 121 PlacesBefore, 52 PlacesAfterwards, 114 TransitionsBefore, 42 TransitionsAfterwards, 4158 CoEnabledTransitionPairs, 7 FixpointIterations, 20 TrivialSequentialCompositions, 77 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 3 ChoiceCompositions, 110 TotalNumberOfCompositions, 15342 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6000, independent: 5672, independent conditional: 0, independent unconditional: 5672, dependent: 328, dependent conditional: 0, dependent unconditional: 328, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2218, independent: 2152, independent conditional: 0, independent unconditional: 2152, dependent: 66, dependent conditional: 0, dependent unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 6000, independent: 3520, independent conditional: 0, independent unconditional: 3520, dependent: 262, dependent conditional: 0, dependent unconditional: 262, unknown: 2218, unknown conditional: 0, unknown unconditional: 2218] , Statistics on independence cache: Total cache size (in pairs): 249, Positive cache size: 224, Positive conditional cache size: 0, Positive unconditional cache size: 224, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 725]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 725]: 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: 740]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 743]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 748]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 748]: 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: 755]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 758]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 763]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 763]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 785]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 785]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 787]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 791]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 791]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 791]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 791]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 791]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 793]: 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, 154 locations, 43 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.9s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 69 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 69 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 154 IncrementalHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 0 mSDtfsCounter, 154 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=93occurred in iteration=0, InterpolantAutomatonStates: 17, 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, 0.4s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 113 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 25 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 13:50:39,568 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...