/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/goblint-regression/13-privatized_33-traces-v-matters_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 17:57:38,729 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 17:57:38,777 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 17:57:38,781 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 17:57:38,781 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 17:57:38,799 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 17:57:38,800 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 17:57:38,800 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 17:57:38,801 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 17:57:38,801 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 17:57:38,802 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 17:57:38,802 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 17:57:38,802 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 17:57:38,803 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 17:57:38,803 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 17:57:38,803 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 17:57:38,803 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 17:57:38,804 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 17:57:38,804 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 17:57:38,804 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 17:57:38,805 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 17:57:38,805 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 17:57:38,805 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 17:57:38,806 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 17:57:38,806 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 17:57:38,806 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 17:57:38,807 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 17:57:38,807 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 17:57:38,807 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 17:57:38,808 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 17:57:38,808 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 17:57:38,808 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 17:57:38,809 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 17:57:38,809 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 17:57:38,809 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 17:57:38,810 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 17:57:39,133 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 17:57:39,158 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 17:57:39,161 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 17:57:39,162 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 17:57:39,163 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 17:57:39,165 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_33-traces-v-matters_true.i [2023-08-25 17:57:40,310 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 17:57:40,518 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 17:57:40,518 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_33-traces-v-matters_true.i [2023-08-25 17:57:40,531 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e417c829/b42d343b2033422f879595b7aef82c90/FLAG2af28a104 [2023-08-25 17:57:40,543 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e417c829/b42d343b2033422f879595b7aef82c90 [2023-08-25 17:57:40,545 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 17:57:40,547 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 17:57:40,547 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 17:57:40,547 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 17:57:40,550 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 17:57:40,550 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:57:40" (1/1) ... [2023-08-25 17:57:40,551 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f2853a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:57:40, skipping insertion in model container [2023-08-25 17:57:40,551 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:57:40" (1/1) ... [2023-08-25 17:57:40,586 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 17:57:40,886 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 17:57:40,901 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 17:57:40,933 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [231] [2023-08-25 17:57:40,935 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [232] [2023-08-25 17:57:40,949 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 17:57:40,994 INFO L206 MainTranslator]: Completed translation [2023-08-25 17:57:40,995 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:57:40 WrapperNode [2023-08-25 17:57:40,996 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 17:57:40,997 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 17:57:40,997 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 17:57:40,997 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 17:57:41,003 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:57:40" (1/1) ... [2023-08-25 17:57:41,031 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:57:40" (1/1) ... [2023-08-25 17:57:41,055 INFO L138 Inliner]: procedures = 162, calls = 37, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 67 [2023-08-25 17:57:41,055 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 17:57:41,056 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 17:57:41,056 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 17:57:41,056 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 17:57:41,063 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:57:40" (1/1) ... [2023-08-25 17:57:41,064 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:57:40" (1/1) ... [2023-08-25 17:57:41,071 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:57:40" (1/1) ... [2023-08-25 17:57:41,071 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:57:40" (1/1) ... [2023-08-25 17:57:41,086 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:57:40" (1/1) ... [2023-08-25 17:57:41,088 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:57:40" (1/1) ... [2023-08-25 17:57:41,089 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:57:40" (1/1) ... [2023-08-25 17:57:41,089 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:57:40" (1/1) ... [2023-08-25 17:57:41,091 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 17:57:41,092 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 17:57:41,092 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 17:57:41,092 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 17:57:41,093 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:57:40" (1/1) ... [2023-08-25 17:57:41,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 17:57:41,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 17:57:41,125 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 17:57:41,138 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 17:57:41,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 17:57:41,165 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-25 17:57:41,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 17:57:41,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 17:57:41,166 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-25 17:57:41,166 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-25 17:57:41,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 17:57:41,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 17:57:41,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 17:57:41,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 17:57:41,168 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 17:57:41,268 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 17:57:41,269 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 17:57:41,442 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 17:57:41,448 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 17:57:41,448 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 17:57:41,450 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:57:41 BoogieIcfgContainer [2023-08-25 17:57:41,450 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 17:57:41,452 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 17:57:41,452 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 17:57:41,455 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 17:57:41,455 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 05:57:40" (1/3) ... [2023-08-25 17:57:41,456 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38c14352 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:57:41, skipping insertion in model container [2023-08-25 17:57:41,456 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:57:40" (2/3) ... [2023-08-25 17:57:41,456 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38c14352 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:57:41, skipping insertion in model container [2023-08-25 17:57:41,456 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:57:41" (3/3) ... [2023-08-25 17:57:41,457 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_33-traces-v-matters_true.i [2023-08-25 17:57:41,473 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 17:57:41,473 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-25 17:57:41,473 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 17:57:41,526 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 17:57:41,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 92 places, 90 transitions, 185 flow [2023-08-25 17:57:41,625 INFO L124 PetriNetUnfolderBase]: 2/89 cut-off events. [2023-08-25 17:57:41,626 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:57:41,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 89 events. 2/89 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 58 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 53. Up to 2 conditions per place. [2023-08-25 17:57:41,631 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 90 transitions, 185 flow [2023-08-25 17:57:41,636 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 91 places, 89 transitions, 181 flow [2023-08-25 17:57:41,639 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 17:57:41,654 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 89 transitions, 181 flow [2023-08-25 17:57:41,657 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 89 transitions, 181 flow [2023-08-25 17:57:41,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 91 places, 89 transitions, 181 flow [2023-08-25 17:57:41,694 INFO L124 PetriNetUnfolderBase]: 2/89 cut-off events. [2023-08-25 17:57:41,694 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:57:41,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 89 events. 2/89 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 58 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 53. Up to 2 conditions per place. [2023-08-25 17:57:41,697 INFO L119 LiptonReduction]: Number of co-enabled transitions 1260 [2023-08-25 17:57:44,638 INFO L134 LiptonReduction]: Checked pairs total: 5209 [2023-08-25 17:57:44,638 INFO L136 LiptonReduction]: Total number of compositions: 76 [2023-08-25 17:57:44,648 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 17:57:44,653 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;@38c1f574, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 17:57:44,654 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-08-25 17:57:44,656 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 17:57:44,656 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2023-08-25 17:57:44,657 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:57:44,657 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:57:44,657 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:57:44,658 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT (and 3 more)] === [2023-08-25 17:57:44,661 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:57:44,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1395381078, now seen corresponding path program 1 times [2023-08-25 17:57:44,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:57:44,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056937684] [2023-08-25 17:57:44,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:57:44,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:57:44,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:57:44,940 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 17:57:44,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:57:44,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056937684] [2023-08-25 17:57:44,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056937684] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:57:44,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:57:44,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 17:57:44,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928719553] [2023-08-25 17:57:44,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:57:44,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 17:57:44,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:57:44,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 17:57:44,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 17:57:44,981 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 166 [2023-08-25 17:57:44,984 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 26 transitions, 55 flow. Second operand has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 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 17:57:44,984 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:57:44,984 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 166 [2023-08-25 17:57:44,985 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:57:45,089 INFO L124 PetriNetUnfolderBase]: 88/220 cut-off events. [2023-08-25 17:57:45,089 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:57:45,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 423 conditions, 220 events. 88/220 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 908 event pairs, 67 based on Foata normal form. 0/181 useless extension candidates. Maximal degree in co-relation 414. Up to 176 conditions per place. [2023-08-25 17:57:45,093 INFO L140 encePairwiseOnDemand]: 160/166 looper letters, 29 selfloop transitions, 4 changer transitions 1/38 dead transitions. [2023-08-25 17:57:45,094 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 38 transitions, 147 flow [2023-08-25 17:57:45,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 17:57:45,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 17:57:45,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 262 transitions. [2023-08-25 17:57:45,112 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5261044176706827 [2023-08-25 17:57:45,113 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 262 transitions. [2023-08-25 17:57:45,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 262 transitions. [2023-08-25 17:57:45,116 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:57:45,118 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 262 transitions. [2023-08-25 17:57:45,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 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 17:57:45,128 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 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 17:57:45,128 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 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 17:57:45,130 INFO L175 Difference]: Start difference. First operand has 29 places, 26 transitions, 55 flow. Second operand 3 states and 262 transitions. [2023-08-25 17:57:45,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 38 transitions, 147 flow [2023-08-25 17:57:45,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 38 transitions, 146 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 17:57:45,135 INFO L231 Difference]: Finished difference. Result has 31 places, 28 transitions, 78 flow [2023-08-25 17:57:45,136 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=31, PETRI_TRANSITIONS=28} [2023-08-25 17:57:45,139 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 2 predicate places. [2023-08-25 17:57:45,140 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 28 transitions, 78 flow [2023-08-25 17:57:45,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 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 17:57:45,140 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:57:45,140 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:57:45,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 17:57:45,141 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT (and 3 more)] === [2023-08-25 17:57:45,148 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:57:45,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1407567677, now seen corresponding path program 1 times [2023-08-25 17:57:45,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:57:45,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934793082] [2023-08-25 17:57:45,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:57:45,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:57:45,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:57:45,214 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 17:57:45,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:57:45,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934793082] [2023-08-25 17:57:45,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934793082] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:57:45,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:57:45,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 17:57:45,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111059619] [2023-08-25 17:57:45,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:57:45,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 17:57:45,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:57:45,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 17:57:45,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 17:57:45,218 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 166 [2023-08-25 17:57:45,219 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 28 transitions, 78 flow. Second operand has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 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 17:57:45,219 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:57:45,219 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 166 [2023-08-25 17:57:45,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:57:45,293 INFO L124 PetriNetUnfolderBase]: 85/214 cut-off events. [2023-08-25 17:57:45,293 INFO L125 PetriNetUnfolderBase]: For 45/45 co-relation queries the response was YES. [2023-08-25 17:57:45,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 485 conditions, 214 events. 85/214 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 868 event pairs, 65 based on Foata normal form. 0/179 useless extension candidates. Maximal degree in co-relation 475. Up to 181 conditions per place. [2023-08-25 17:57:45,295 INFO L140 encePairwiseOnDemand]: 162/166 looper letters, 28 selfloop transitions, 4 changer transitions 0/36 dead transitions. [2023-08-25 17:57:45,295 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 36 transitions, 165 flow [2023-08-25 17:57:45,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 17:57:45,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 17:57:45,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 252 transitions. [2023-08-25 17:57:45,297 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5060240963855421 [2023-08-25 17:57:45,298 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 252 transitions. [2023-08-25 17:57:45,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 252 transitions. [2023-08-25 17:57:45,298 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:57:45,298 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 252 transitions. [2023-08-25 17:57:45,300 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 17:57:45,303 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 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 17:57:45,303 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 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 17:57:45,303 INFO L175 Difference]: Start difference. First operand has 31 places, 28 transitions, 78 flow. Second operand 3 states and 252 transitions. [2023-08-25 17:57:45,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 36 transitions, 165 flow [2023-08-25 17:57:45,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 36 transitions, 160 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 17:57:45,306 INFO L231 Difference]: Finished difference. Result has 33 places, 30 transitions, 98 flow [2023-08-25 17:57:45,306 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=33, PETRI_TRANSITIONS=30} [2023-08-25 17:57:45,307 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 4 predicate places. [2023-08-25 17:57:45,307 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 30 transitions, 98 flow [2023-08-25 17:57:45,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 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 17:57:45,308 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:57:45,308 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:57:45,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 17:57:45,308 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT (and 3 more)] === [2023-08-25 17:57:45,309 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:57:45,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1916250945, now seen corresponding path program 1 times [2023-08-25 17:57:45,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:57:45,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963508746] [2023-08-25 17:57:45,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:57:45,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:57:45,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:57:45,443 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 17:57:45,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:57:45,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963508746] [2023-08-25 17:57:45,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963508746] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:57:45,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:57:45,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 17:57:45,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170869270] [2023-08-25 17:57:45,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:57:45,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 17:57:45,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:57:45,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 17:57:45,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-25 17:57:45,450 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 166 [2023-08-25 17:57:45,450 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 30 transitions, 98 flow. Second operand has 5 states, 5 states have (on average 66.0) internal successors, (330), 5 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 17:57:45,450 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:57:45,450 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 166 [2023-08-25 17:57:45,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:57:45,514 INFO L124 PetriNetUnfolderBase]: 38/125 cut-off events. [2023-08-25 17:57:45,515 INFO L125 PetriNetUnfolderBase]: For 25/27 co-relation queries the response was YES. [2023-08-25 17:57:45,515 INFO L83 FinitePrefix]: Finished finitePrefix Result has 286 conditions, 125 events. 38/125 cut-off events. For 25/27 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 478 event pairs, 9 based on Foata normal form. 12/117 useless extension candidates. Maximal degree in co-relation 275. Up to 78 conditions per place. [2023-08-25 17:57:45,516 INFO L140 encePairwiseOnDemand]: 160/166 looper letters, 23 selfloop transitions, 6 changer transitions 1/35 dead transitions. [2023-08-25 17:57:45,516 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 35 transitions, 162 flow [2023-08-25 17:57:45,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 17:57:45,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 17:57:45,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 287 transitions. [2023-08-25 17:57:45,522 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4322289156626506 [2023-08-25 17:57:45,522 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 287 transitions. [2023-08-25 17:57:45,522 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 287 transitions. [2023-08-25 17:57:45,522 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:57:45,522 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 287 transitions. [2023-08-25 17:57:45,523 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 71.75) internal successors, (287), 4 states have internal predecessors, (287), 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 17:57:45,525 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 166.0) internal successors, (830), 5 states have internal predecessors, (830), 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 17:57:45,526 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 166.0) internal successors, (830), 5 states have internal predecessors, (830), 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 17:57:45,526 INFO L175 Difference]: Start difference. First operand has 33 places, 30 transitions, 98 flow. Second operand 4 states and 287 transitions. [2023-08-25 17:57:45,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 35 transitions, 162 flow [2023-08-25 17:57:45,528 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 35 transitions, 144 flow, removed 3 selfloop flow, removed 3 redundant places. [2023-08-25 17:57:45,529 INFO L231 Difference]: Finished difference. Result has 33 places, 28 transitions, 91 flow [2023-08-25 17:57:45,529 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=91, PETRI_PLACES=33, PETRI_TRANSITIONS=28} [2023-08-25 17:57:45,530 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 4 predicate places. [2023-08-25 17:57:45,533 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 28 transitions, 91 flow [2023-08-25 17:57:45,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 66.0) internal successors, (330), 5 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 17:57:45,533 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:57:45,534 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:57:45,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 17:57:45,534 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT (and 3 more)] === [2023-08-25 17:57:45,534 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:57:45,535 INFO L85 PathProgramCache]: Analyzing trace with hash -696106234, now seen corresponding path program 1 times [2023-08-25 17:57:45,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:57:45,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617340661] [2023-08-25 17:57:45,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:57:45,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:57:45,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:57:45,589 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 17:57:45,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:57:45,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617340661] [2023-08-25 17:57:45,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617340661] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:57:45,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:57:45,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 17:57:45,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585942638] [2023-08-25 17:57:45,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:57:45,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 17:57:45,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:57:45,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 17:57:45,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 17:57:45,592 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 166 [2023-08-25 17:57:45,592 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 28 transitions, 91 flow. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 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 17:57:45,592 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:57:45,592 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 166 [2023-08-25 17:57:45,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:57:45,648 INFO L124 PetriNetUnfolderBase]: 53/164 cut-off events. [2023-08-25 17:57:45,649 INFO L125 PetriNetUnfolderBase]: For 39/42 co-relation queries the response was YES. [2023-08-25 17:57:45,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 402 conditions, 164 events. 53/164 cut-off events. For 39/42 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 653 event pairs, 18 based on Foata normal form. 3/144 useless extension candidates. Maximal degree in co-relation 390. Up to 83 conditions per place. [2023-08-25 17:57:45,652 INFO L140 encePairwiseOnDemand]: 162/166 looper letters, 27 selfloop transitions, 4 changer transitions 1/37 dead transitions. [2023-08-25 17:57:45,653 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 37 transitions, 182 flow [2023-08-25 17:57:45,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 17:57:45,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 17:57:45,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 261 transitions. [2023-08-25 17:57:45,654 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5240963855421686 [2023-08-25 17:57:45,654 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 261 transitions. [2023-08-25 17:57:45,654 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 261 transitions. [2023-08-25 17:57:45,654 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:57:45,655 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 261 transitions. [2023-08-25 17:57:45,655 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 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 17:57:45,656 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 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 17:57:45,657 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 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 17:57:45,657 INFO L175 Difference]: Start difference. First operand has 33 places, 28 transitions, 91 flow. Second operand 3 states and 261 transitions. [2023-08-25 17:57:45,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 37 transitions, 182 flow [2023-08-25 17:57:45,659 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 37 transitions, 181 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 17:57:45,660 INFO L231 Difference]: Finished difference. Result has 36 places, 30 transitions, 118 flow [2023-08-25 17:57:45,660 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=118, PETRI_PLACES=36, PETRI_TRANSITIONS=30} [2023-08-25 17:57:45,661 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 7 predicate places. [2023-08-25 17:57:45,661 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 30 transitions, 118 flow [2023-08-25 17:57:45,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 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 17:57:45,662 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:57:45,662 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:57:45,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 17:57:45,662 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT (and 3 more)] === [2023-08-25 17:57:45,663 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:57:45,663 INFO L85 PathProgramCache]: Analyzing trace with hash -104456469, now seen corresponding path program 1 times [2023-08-25 17:57:45,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:57:45,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197470241] [2023-08-25 17:57:45,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:57:45,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:57:45,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:57:45,760 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 17:57:45,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:57:45,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197470241] [2023-08-25 17:57:45,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197470241] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:57:45,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:57:45,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 17:57:45,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445083623] [2023-08-25 17:57:45,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:57:45,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 17:57:45,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:57:45,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 17:57:45,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 17:57:45,763 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 166 [2023-08-25 17:57:45,764 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 30 transitions, 118 flow. Second operand has 3 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 17:57:45,764 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:57:45,764 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 166 [2023-08-25 17:57:45,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:57:45,833 INFO L124 PetriNetUnfolderBase]: 39/152 cut-off events. [2023-08-25 17:57:45,834 INFO L125 PetriNetUnfolderBase]: For 63/69 co-relation queries the response was YES. [2023-08-25 17:57:45,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 387 conditions, 152 events. 39/152 cut-off events. For 63/69 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 638 event pairs, 9 based on Foata normal form. 1/135 useless extension candidates. Maximal degree in co-relation 374. Up to 68 conditions per place. [2023-08-25 17:57:45,835 INFO L140 encePairwiseOnDemand]: 162/166 looper letters, 16 selfloop transitions, 3 changer transitions 11/40 dead transitions. [2023-08-25 17:57:45,835 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 40 transitions, 214 flow [2023-08-25 17:57:45,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 17:57:45,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 17:57:45,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 271 transitions. [2023-08-25 17:57:45,841 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5441767068273092 [2023-08-25 17:57:45,841 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 271 transitions. [2023-08-25 17:57:45,842 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 271 transitions. [2023-08-25 17:57:45,842 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:57:45,842 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 271 transitions. [2023-08-25 17:57:45,843 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 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 17:57:45,844 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 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 17:57:45,844 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 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 17:57:45,844 INFO L175 Difference]: Start difference. First operand has 36 places, 30 transitions, 118 flow. Second operand 3 states and 271 transitions. [2023-08-25 17:57:45,844 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 40 transitions, 214 flow [2023-08-25 17:57:45,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 40 transitions, 204 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 17:57:45,846 INFO L231 Difference]: Finished difference. Result has 37 places, 28 transitions, 112 flow [2023-08-25 17:57:45,847 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=37, PETRI_TRANSITIONS=28} [2023-08-25 17:57:45,847 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 8 predicate places. [2023-08-25 17:57:45,847 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 28 transitions, 112 flow [2023-08-25 17:57:45,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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 17:57:45,848 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:57:45,848 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:57:45,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 17:57:45,848 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT (and 3 more)] === [2023-08-25 17:57:45,849 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:57:45,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1469536610, now seen corresponding path program 1 times [2023-08-25 17:57:45,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:57:45,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297376104] [2023-08-25 17:57:45,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:57:45,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:57:45,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:57:45,992 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 17:57:45,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:57:45,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297376104] [2023-08-25 17:57:45,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297376104] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:57:45,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:57:45,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 17:57:45,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43902790] [2023-08-25 17:57:45,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:57:45,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 17:57:45,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:57:45,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 17:57:45,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-25 17:57:46,000 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 166 [2023-08-25 17:57:46,000 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 28 transitions, 112 flow. Second operand has 5 states, 5 states have (on average 66.6) internal successors, (333), 5 states have internal predecessors, (333), 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 17:57:46,001 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:57:46,001 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 166 [2023-08-25 17:57:46,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:57:46,051 INFO L124 PetriNetUnfolderBase]: 6/49 cut-off events. [2023-08-25 17:57:46,051 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2023-08-25 17:57:46,052 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 49 events. 6/49 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 90 event pairs, 0 based on Foata normal form. 6/55 useless extension candidates. Maximal degree in co-relation 131. Up to 21 conditions per place. [2023-08-25 17:57:46,052 INFO L140 encePairwiseOnDemand]: 161/166 looper letters, 17 selfloop transitions, 5 changer transitions 3/27 dead transitions. [2023-08-25 17:57:46,052 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 27 transitions, 157 flow [2023-08-25 17:57:46,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 17:57:46,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 17:57:46,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 283 transitions. [2023-08-25 17:57:46,054 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42620481927710846 [2023-08-25 17:57:46,054 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 283 transitions. [2023-08-25 17:57:46,054 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 283 transitions. [2023-08-25 17:57:46,055 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:57:46,055 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 283 transitions. [2023-08-25 17:57:46,055 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 70.75) internal successors, (283), 4 states have internal predecessors, (283), 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 17:57:46,057 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 166.0) internal successors, (830), 5 states have internal predecessors, (830), 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 17:57:46,058 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 166.0) internal successors, (830), 5 states have internal predecessors, (830), 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 17:57:46,058 INFO L175 Difference]: Start difference. First operand has 37 places, 28 transitions, 112 flow. Second operand 4 states and 283 transitions. [2023-08-25 17:57:46,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 27 transitions, 157 flow [2023-08-25 17:57:46,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 27 transitions, 131 flow, removed 5 selfloop flow, removed 6 redundant places. [2023-08-25 17:57:46,060 INFO L231 Difference]: Finished difference. Result has 33 places, 22 transitions, 77 flow [2023-08-25 17:57:46,061 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=77, PETRI_PLACES=33, PETRI_TRANSITIONS=22} [2023-08-25 17:57:46,063 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 4 predicate places. [2023-08-25 17:57:46,064 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 22 transitions, 77 flow [2023-08-25 17:57:46,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 66.6) internal successors, (333), 5 states have internal predecessors, (333), 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 17:57:46,064 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:57:46,064 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:57:46,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 17:57:46,064 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT (and 3 more)] === [2023-08-25 17:57:46,065 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:57:46,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1045808336, now seen corresponding path program 1 times [2023-08-25 17:57:46,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:57:46,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309778062] [2023-08-25 17:57:46,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:57:46,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:57:46,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:57:46,243 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 17:57:46,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:57:46,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309778062] [2023-08-25 17:57:46,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309778062] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:57:46,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:57:46,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 17:57:46,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655441860] [2023-08-25 17:57:46,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:57:46,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 17:57:46,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:57:46,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 17:57:46,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-08-25 17:57:46,246 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 166 [2023-08-25 17:57:46,246 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 22 transitions, 77 flow. Second operand has 6 states, 6 states have (on average 60.833333333333336) internal successors, (365), 6 states have internal predecessors, (365), 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 17:57:46,247 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:57:46,247 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 166 [2023-08-25 17:57:46,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:57:46,270 INFO L124 PetriNetUnfolderBase]: 1/20 cut-off events. [2023-08-25 17:57:46,270 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2023-08-25 17:57:46,270 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 20 events. 1/20 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 13 event pairs, 1 based on Foata normal form. 1/21 useless extension candidates. Maximal degree in co-relation 42. Up to 13 conditions per place. [2023-08-25 17:57:46,270 INFO L140 encePairwiseOnDemand]: 163/166 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2023-08-25 17:57:46,270 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 18 transitions, 94 flow [2023-08-25 17:57:46,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 17:57:46,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 17:57:46,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 249 transitions. [2023-08-25 17:57:46,272 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.375 [2023-08-25 17:57:46,272 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 249 transitions. [2023-08-25 17:57:46,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 249 transitions. [2023-08-25 17:57:46,272 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:57:46,272 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 249 transitions. [2023-08-25 17:57:46,273 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 62.25) internal successors, (249), 4 states have internal predecessors, (249), 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 17:57:46,274 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 166.0) internal successors, (830), 5 states have internal predecessors, (830), 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 17:57:46,274 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 166.0) internal successors, (830), 5 states have internal predecessors, (830), 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 17:57:46,274 INFO L175 Difference]: Start difference. First operand has 33 places, 22 transitions, 77 flow. Second operand 4 states and 249 transitions. [2023-08-25 17:57:46,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 18 transitions, 94 flow [2023-08-25 17:57:46,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 18 transitions, 84 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-25 17:57:46,276 INFO L231 Difference]: Finished difference. Result has 26 places, 0 transitions, 0 flow [2023-08-25 17:57:46,276 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=45, PETRI_DIFFERENCE_MINUEND_PLACES=23, 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=26, PETRI_TRANSITIONS=0} [2023-08-25 17:57:46,277 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, -3 predicate places. [2023-08-25 17:57:46,277 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 0 transitions, 0 flow [2023-08-25 17:57:46,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 60.833333333333336) internal successors, (365), 6 states have internal predecessors, (365), 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 17:57:46,280 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 6 remaining) [2023-08-25 17:57:46,280 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 6 remaining) [2023-08-25 17:57:46,281 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONASSERT (3 of 6 remaining) [2023-08-25 17:57:46,282 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2023-08-25 17:57:46,282 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 6 remaining) [2023-08-25 17:57:46,284 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 6 remaining) [2023-08-25 17:57:46,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 17:57:46,285 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:57:46,289 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 17:57:46,289 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 17:57:46,294 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 05:57:46 BasicIcfg [2023-08-25 17:57:46,294 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 17:57:46,297 INFO L158 Benchmark]: Toolchain (without parser) took 5748.56ms. Allocated memory was 367.0MB in the beginning and 440.4MB in the end (delta: 73.4MB). Free memory was 321.9MB in the beginning and 335.6MB in the end (delta: -13.7MB). Peak memory consumption was 62.9MB. Max. memory is 16.0GB. [2023-08-25 17:57:46,298 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 367.0MB. Free memory is still 344.6MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 17:57:46,298 INFO L158 Benchmark]: CACSL2BoogieTranslator took 448.68ms. Allocated memory is still 367.0MB. Free memory was 321.9MB in the beginning and 302.0MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-08-25 17:57:46,299 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.47ms. Allocated memory is still 367.0MB. Free memory was 302.0MB in the beginning and 299.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 17:57:46,299 INFO L158 Benchmark]: Boogie Preprocessor took 35.67ms. Allocated memory is still 367.0MB. Free memory was 299.9MB in the beginning and 298.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 17:57:46,299 INFO L158 Benchmark]: RCFGBuilder took 358.49ms. Allocated memory is still 367.0MB. Free memory was 298.8MB in the beginning and 283.1MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2023-08-25 17:57:46,299 INFO L158 Benchmark]: TraceAbstraction took 4842.42ms. Allocated memory was 367.0MB in the beginning and 440.4MB in the end (delta: 73.4MB). Free memory was 282.0MB in the beginning and 335.6MB in the end (delta: -53.5MB). Peak memory consumption was 23.0MB. Max. memory is 16.0GB. [2023-08-25 17:57:46,301 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 367.0MB. Free memory is still 344.6MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 448.68ms. Allocated memory is still 367.0MB. Free memory was 321.9MB in the beginning and 302.0MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 58.47ms. Allocated memory is still 367.0MB. Free memory was 302.0MB in the beginning and 299.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 35.67ms. Allocated memory is still 367.0MB. Free memory was 299.9MB in the beginning and 298.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 358.49ms. Allocated memory is still 367.0MB. Free memory was 298.8MB in the beginning and 283.1MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 4842.42ms. Allocated memory was 367.0MB in the beginning and 440.4MB in the end (delta: 73.4MB). Free memory was 282.0MB in the beginning and 335.6MB in the end (delta: -53.5MB). Peak memory consumption was 23.0MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 231]: Unsoundness Warning unspecified type, defaulting to int C: short [231] - GenericResultAtLocation [Line: 232]: Unsoundness Warning unspecified type, defaulting to int C: short [232] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.0s, 91 PlacesBefore, 29 PlacesAfterwards, 89 TransitionsBefore, 26 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 7 FixpointIterations, 34 TrivialSequentialCompositions, 33 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 76 TotalNumberOfCompositions, 5209 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2067, independent: 1746, independent conditional: 0, independent unconditional: 1746, dependent: 321, dependent conditional: 0, dependent unconditional: 321, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 700, independent: 657, independent conditional: 0, independent unconditional: 657, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2067, independent: 1089, independent conditional: 0, independent unconditional: 1089, dependent: 278, dependent conditional: 0, dependent unconditional: 278, unknown: 700, unknown conditional: 0, unknown unconditional: 700] , Statistics on independence cache: Total cache size (in pairs): 93, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 700]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 703]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 18]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 688]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 109 locations, 6 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: 4.7s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 86 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 86 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 279 IncrementalHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 12 mSDtfsCounter, 279 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=118occurred in iteration=4, InterpolantAutomatonStates: 24, 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, 0.7s InterpolantComputationTime, 82 NumberOfCodeBlocks, 82 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 75 ConstructedInterpolants, 0 QuantifiedInterpolants, 299 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 17:57:46,324 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...