/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 -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/ldv-races/race-1_2b-join.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 02:23:47,547 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 02:23:47,610 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 02:23:47,614 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 02:23:47,614 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 02:23:47,643 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 02:23:47,643 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 02:23:47,647 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 02:23:47,647 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 02:23:47,648 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 02:23:47,649 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 02:23:47,649 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 02:23:47,649 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 02:23:47,649 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 02:23:47,649 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 02:23:47,649 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 02:23:47,650 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 02:23:47,650 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 02:23:47,650 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 02:23:47,650 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 02:23:47,650 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 02:23:47,653 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 02:23:47,653 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 02:23:47,654 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 02:23:47,654 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 02:23:47,654 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 02:23:47,654 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 02:23:47,654 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 02:23:47,654 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 02:23:47,655 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 02:23:47,655 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 02:23:47,655 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 02:23:47,655 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 02:23:47,656 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 02:23:47,656 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 02:23:47,656 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 02:23:47,963 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 02:23:47,982 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 02:23:47,984 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 02:23:47,985 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 02:23:47,985 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 02:23:47,986 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_2b-join.i [2023-08-25 02:23:49,063 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 02:23:49,345 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 02:23:49,345 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_2b-join.i [2023-08-25 02:23:49,368 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0200d539c/d9f8da2d4aef493a80471f319dd8fd85/FLAGe3d78f830 [2023-08-25 02:23:49,379 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0200d539c/d9f8da2d4aef493a80471f319dd8fd85 [2023-08-25 02:23:49,383 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 02:23:49,384 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 02:23:49,385 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 02:23:49,385 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 02:23:49,386 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 02:23:49,387 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 02:23:49" (1/1) ... [2023-08-25 02:23:49,388 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9a1eb3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:23:49, skipping insertion in model container [2023-08-25 02:23:49,388 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 02:23:49" (1/1) ... [2023-08-25 02:23:49,428 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 02:23:49,938 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 02:23:49,952 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 02:23:49,961 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [237] [2023-08-25 02:23:49,962 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [237] [2023-08-25 02:23:49,967 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [729] [2023-08-25 02:23:49,980 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 02:23:50,050 INFO L206 MainTranslator]: Completed translation [2023-08-25 02:23:50,051 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:23:50 WrapperNode [2023-08-25 02:23:50,051 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 02:23:50,052 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 02:23:50,052 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 02:23:50,052 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 02:23:50,056 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:23:50" (1/1) ... [2023-08-25 02:23:50,075 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:23:50" (1/1) ... [2023-08-25 02:23:50,093 INFO L138 Inliner]: procedures = 480, calls = 28, calls flagged for inlining = 9, calls inlined = 12, statements flattened = 127 [2023-08-25 02:23:50,093 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 02:23:50,094 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 02:23:50,094 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 02:23:50,094 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 02:23:50,099 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:23:50" (1/1) ... [2023-08-25 02:23:50,099 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:23:50" (1/1) ... [2023-08-25 02:23:50,104 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:23:50" (1/1) ... [2023-08-25 02:23:50,104 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:23:50" (1/1) ... [2023-08-25 02:23:50,113 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:23:50" (1/1) ... [2023-08-25 02:23:50,114 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:23:50" (1/1) ... [2023-08-25 02:23:50,117 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:23:50" (1/1) ... [2023-08-25 02:23:50,118 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:23:50" (1/1) ... [2023-08-25 02:23:50,121 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 02:23:50,122 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 02:23:50,122 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 02:23:50,122 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 02:23:50,122 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:23:50" (1/1) ... [2023-08-25 02:23:50,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 02:23:50,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 02:23:50,160 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 02:23:50,170 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 02:23:50,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 02:23:50,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 02:23:50,195 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-25 02:23:50,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 02:23:50,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-25 02:23:50,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 02:23:50,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 02:23:50,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 02:23:50,196 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-25 02:23:50,196 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-25 02:23:50,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 02:23:50,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 02:23:50,197 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 02:23:50,408 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 02:23:50,410 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 02:23:50,613 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 02:23:50,618 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 02:23:50,618 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 02:23:50,619 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 02:23:50 BoogieIcfgContainer [2023-08-25 02:23:50,619 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 02:23:50,621 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 02:23:50,621 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 02:23:50,623 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 02:23:50,623 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 02:23:49" (1/3) ... [2023-08-25 02:23:50,623 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b424ccd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 02:23:50, skipping insertion in model container [2023-08-25 02:23:50,623 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:23:50" (2/3) ... [2023-08-25 02:23:50,624 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b424ccd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 02:23:50, skipping insertion in model container [2023-08-25 02:23:50,624 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 02:23:50" (3/3) ... [2023-08-25 02:23:50,624 INFO L112 eAbstractionObserver]: Analyzing ICFG race-1_2b-join.i [2023-08-25 02:23:50,635 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 02:23:50,636 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2023-08-25 02:23:50,636 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 02:23:50,689 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-25 02:23:50,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 154 places, 160 transitions, 328 flow [2023-08-25 02:23:50,775 INFO L124 PetriNetUnfolderBase]: 9/177 cut-off events. [2023-08-25 02:23:50,775 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 02:23:50,778 INFO L83 FinitePrefix]: Finished finitePrefix Result has 182 conditions, 177 events. 9/177 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 273 event pairs, 0 based on Foata normal form. 0/151 useless extension candidates. Maximal degree in co-relation 93. Up to 3 conditions per place. [2023-08-25 02:23:50,779 INFO L82 GeneralOperation]: Start removeDead. Operand has 154 places, 160 transitions, 328 flow [2023-08-25 02:23:50,781 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 147 places, 150 transitions, 306 flow [2023-08-25 02:23:50,784 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 02:23:50,794 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 147 places, 150 transitions, 306 flow [2023-08-25 02:23:50,797 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 147 places, 150 transitions, 306 flow [2023-08-25 02:23:50,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 147 places, 150 transitions, 306 flow [2023-08-25 02:23:50,834 INFO L124 PetriNetUnfolderBase]: 6/168 cut-off events. [2023-08-25 02:23:50,834 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 02:23:50,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 173 conditions, 168 events. 6/168 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 256 event pairs, 0 based on Foata normal form. 0/145 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place. [2023-08-25 02:23:50,836 INFO L119 LiptonReduction]: Number of co-enabled transitions 1008 [2023-08-25 02:23:54,543 INFO L134 LiptonReduction]: Checked pairs total: 2230 [2023-08-25 02:23:54,543 INFO L136 LiptonReduction]: Total number of compositions: 177 [2023-08-25 02:23:54,552 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 02:23:54,556 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;@12b48add, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 02:23:54,557 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-08-25 02:23:54,557 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 02:23:54,558 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 02:23:54,558 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 02:23:54,558 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:23:54,558 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 02:23:54,558 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2023-08-25 02:23:54,561 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:23:54,561 INFO L85 PathProgramCache]: Analyzing trace with hash 580, now seen corresponding path program 1 times [2023-08-25 02:23:54,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:23:54,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540779492] [2023-08-25 02:23:54,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:23:54,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:23:54,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 02:23:54,712 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 02:23:54,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 02:23:54,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540779492] [2023-08-25 02:23:54,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540779492] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 02:23:54,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 02:23:54,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 02:23:54,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615506359] [2023-08-25 02:23:54,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 02:23:54,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 02:23:54,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 02:23:54,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 02:23:54,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 02:23:54,740 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 337 [2023-08-25 02:23:54,741 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 29 transitions, 64 flow. Second operand has 2 states, 2 states have (on average 146.5) internal successors, (293), 2 states have internal predecessors, (293), 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 02:23:54,741 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 02:23:54,741 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 337 [2023-08-25 02:23:54,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 02:23:54,780 INFO L124 PetriNetUnfolderBase]: 18/68 cut-off events. [2023-08-25 02:23:54,781 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 02:23:54,781 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 68 events. 18/68 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 219 event pairs, 18 based on Foata normal form. 1/54 useless extension candidates. Maximal degree in co-relation 107. Up to 52 conditions per place. [2023-08-25 02:23:54,783 INFO L140 encePairwiseOnDemand]: 327/337 looper letters, 11 selfloop transitions, 0 changer transitions 2/19 dead transitions. [2023-08-25 02:23:54,783 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 19 transitions, 70 flow [2023-08-25 02:23:54,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 02:23:54,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 02:23:54,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 315 transitions. [2023-08-25 02:23:54,798 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46735905044510384 [2023-08-25 02:23:54,799 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 315 transitions. [2023-08-25 02:23:54,799 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 315 transitions. [2023-08-25 02:23:54,802 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 02:23:54,804 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 315 transitions. [2023-08-25 02:23:54,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 157.5) internal successors, (315), 2 states have internal predecessors, (315), 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 02:23:54,813 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 337.0) internal successors, (1011), 3 states have internal predecessors, (1011), 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 02:23:54,814 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 337.0) internal successors, (1011), 3 states have internal predecessors, (1011), 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 02:23:54,815 INFO L175 Difference]: Start difference. First operand has 32 places, 29 transitions, 64 flow. Second operand 2 states and 315 transitions. [2023-08-25 02:23:54,816 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 19 transitions, 70 flow [2023-08-25 02:23:54,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 19 transitions, 66 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 02:23:54,819 INFO L231 Difference]: Finished difference. Result has 21 places, 17 transitions, 35 flow [2023-08-25 02:23:54,822 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=35, PETRI_PLACES=21, PETRI_TRANSITIONS=17} [2023-08-25 02:23:54,829 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, -11 predicate places. [2023-08-25 02:23:54,829 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 17 transitions, 35 flow [2023-08-25 02:23:54,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 146.5) internal successors, (293), 2 states have internal predecessors, (293), 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 02:23:54,829 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:23:54,829 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-25 02:23:54,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 02:23:54,830 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2023-08-25 02:23:54,832 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:23:54,832 INFO L85 PathProgramCache]: Analyzing trace with hash 557660584, now seen corresponding path program 1 times [2023-08-25 02:23:54,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:23:54,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878328826] [2023-08-25 02:23:54,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:23:54,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:23:54,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 02:23:54,976 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 02:23:54,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 02:23:54,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878328826] [2023-08-25 02:23:54,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878328826] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 02:23:54,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 02:23:54,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 02:23:54,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869434003] [2023-08-25 02:23:54,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 02:23:54,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 02:23:54,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 02:23:54,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 02:23:54,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 02:23:54,979 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 337 [2023-08-25 02:23:54,980 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 17 transitions, 35 flow. Second operand has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 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 02:23:54,980 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 02:23:54,980 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 337 [2023-08-25 02:23:54,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 02:23:55,026 INFO L124 PetriNetUnfolderBase]: 51/120 cut-off events. [2023-08-25 02:23:55,027 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 02:23:55,027 INFO L83 FinitePrefix]: Finished finitePrefix Result has 244 conditions, 120 events. 51/120 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 404 event pairs, 30 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 241. Up to 100 conditions per place. [2023-08-25 02:23:55,028 INFO L140 encePairwiseOnDemand]: 332/337 looper letters, 22 selfloop transitions, 4 changer transitions 3/29 dead transitions. [2023-08-25 02:23:55,028 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 29 transitions, 117 flow [2023-08-25 02:23:55,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 02:23:55,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 02:23:55,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 381 transitions. [2023-08-25 02:23:55,030 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3768545994065282 [2023-08-25 02:23:55,030 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 381 transitions. [2023-08-25 02:23:55,030 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 381 transitions. [2023-08-25 02:23:55,030 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 02:23:55,030 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 381 transitions. [2023-08-25 02:23:55,031 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 127.0) internal successors, (381), 3 states have internal predecessors, (381), 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 02:23:55,034 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 337.0) internal successors, (1348), 4 states have internal predecessors, (1348), 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 02:23:55,035 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 337.0) internal successors, (1348), 4 states have internal predecessors, (1348), 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 02:23:55,035 INFO L175 Difference]: Start difference. First operand has 21 places, 17 transitions, 35 flow. Second operand 3 states and 381 transitions. [2023-08-25 02:23:55,035 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 29 transitions, 117 flow [2023-08-25 02:23:55,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 29 transitions, 117 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 02:23:55,035 INFO L231 Difference]: Finished difference. Result has 23 places, 20 transitions, 61 flow [2023-08-25 02:23:55,036 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=35, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=61, PETRI_PLACES=23, PETRI_TRANSITIONS=20} [2023-08-25 02:23:55,036 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, -9 predicate places. [2023-08-25 02:23:55,036 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 20 transitions, 61 flow [2023-08-25 02:23:55,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 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 02:23:55,037 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:23:55,037 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-25 02:23:55,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 02:23:55,038 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2023-08-25 02:23:55,042 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:23:55,042 INFO L85 PathProgramCache]: Analyzing trace with hash 557657479, now seen corresponding path program 1 times [2023-08-25 02:23:55,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:23:55,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494105834] [2023-08-25 02:23:55,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:23:55,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:23:55,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 02:23:55,089 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 02:23:55,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 02:23:55,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494105834] [2023-08-25 02:23:55,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494105834] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 02:23:55,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 02:23:55,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 02:23:55,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358898675] [2023-08-25 02:23:55,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 02:23:55,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 02:23:55,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 02:23:55,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 02:23:55,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 02:23:55,091 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 337 [2023-08-25 02:23:55,092 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 20 transitions, 61 flow. Second operand has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 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 02:23:55,092 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 02:23:55,092 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 337 [2023-08-25 02:23:55,092 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 02:23:55,126 INFO L124 PetriNetUnfolderBase]: 47/113 cut-off events. [2023-08-25 02:23:55,126 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2023-08-25 02:23:55,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 297 conditions, 113 events. 47/113 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 358 event pairs, 32 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 292. Up to 107 conditions per place. [2023-08-25 02:23:55,127 INFO L140 encePairwiseOnDemand]: 333/337 looper letters, 21 selfloop transitions, 4 changer transitions 0/25 dead transitions. [2023-08-25 02:23:55,128 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 25 transitions, 128 flow [2023-08-25 02:23:55,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 02:23:55,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 02:23:55,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 371 transitions. [2023-08-25 02:23:55,130 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3669634025717112 [2023-08-25 02:23:55,130 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 371 transitions. [2023-08-25 02:23:55,130 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 371 transitions. [2023-08-25 02:23:55,130 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 02:23:55,130 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 371 transitions. [2023-08-25 02:23:55,131 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 123.66666666666667) internal successors, (371), 3 states have internal predecessors, (371), 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 02:23:55,133 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 337.0) internal successors, (1348), 4 states have internal predecessors, (1348), 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 02:23:55,134 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 337.0) internal successors, (1348), 4 states have internal predecessors, (1348), 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 02:23:55,134 INFO L175 Difference]: Start difference. First operand has 23 places, 20 transitions, 61 flow. Second operand 3 states and 371 transitions. [2023-08-25 02:23:55,134 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 25 transitions, 128 flow [2023-08-25 02:23:55,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 25 transitions, 123 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 02:23:55,136 INFO L231 Difference]: Finished difference. Result has 25 places, 22 transitions, 81 flow [2023-08-25 02:23:55,136 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=57, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=81, PETRI_PLACES=25, PETRI_TRANSITIONS=22} [2023-08-25 02:23:55,137 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, -7 predicate places. [2023-08-25 02:23:55,137 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 22 transitions, 81 flow [2023-08-25 02:23:55,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 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 02:23:55,138 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:23:55,138 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-25 02:23:55,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 02:23:55,138 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2023-08-25 02:23:55,139 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:23:55,139 INFO L85 PathProgramCache]: Analyzing trace with hash -956178137, now seen corresponding path program 1 times [2023-08-25 02:23:55,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:23:55,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78079480] [2023-08-25 02:23:55,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:23:55,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:23:55,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 02:23:55,162 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 02:23:55,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 02:23:55,212 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 02:23:55,212 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 02:23:55,213 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (15 of 16 remaining) [2023-08-25 02:23:55,214 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONDATA_RACE (14 of 16 remaining) [2023-08-25 02:23:55,214 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 16 remaining) [2023-08-25 02:23:55,214 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (12 of 16 remaining) [2023-08-25 02:23:55,214 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONASSERT (11 of 16 remaining) [2023-08-25 02:23:55,214 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (10 of 16 remaining) [2023-08-25 02:23:55,214 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (9 of 16 remaining) [2023-08-25 02:23:55,214 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (8 of 16 remaining) [2023-08-25 02:23:55,214 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (7 of 16 remaining) [2023-08-25 02:23:55,215 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONASSERT (6 of 16 remaining) [2023-08-25 02:23:55,215 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONASSERT (5 of 16 remaining) [2023-08-25 02:23:55,215 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (4 of 16 remaining) [2023-08-25 02:23:55,215 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (3 of 16 remaining) [2023-08-25 02:23:55,215 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (2 of 16 remaining) [2023-08-25 02:23:55,215 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONASSERT (1 of 16 remaining) [2023-08-25 02:23:55,215 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 16 remaining) [2023-08-25 02:23:55,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 02:23:55,215 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-25 02:23:55,219 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 02:23:55,219 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 02:23:55,233 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 02:23:55 BasicIcfg [2023-08-25 02:23:55,233 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 02:23:55,234 INFO L158 Benchmark]: Toolchain (without parser) took 5849.51ms. Allocated memory was 390.1MB in the beginning and 587.2MB in the end (delta: 197.1MB). Free memory was 362.4MB in the beginning and 553.8MB in the end (delta: -191.4MB). Peak memory consumption was 185.9MB. Max. memory is 16.0GB. [2023-08-25 02:23:55,234 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 390.1MB. Free memory is still 367.7MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 02:23:55,234 INFO L158 Benchmark]: CACSL2BoogieTranslator took 666.44ms. Allocated memory is still 390.1MB. Free memory was 362.4MB in the beginning and 310.0MB in the end (delta: 52.4MB). Peak memory consumption was 52.4MB. Max. memory is 16.0GB. [2023-08-25 02:23:55,234 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.75ms. Allocated memory is still 390.1MB. Free memory was 309.2MB in the beginning and 305.8MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-25 02:23:55,234 INFO L158 Benchmark]: Boogie Preprocessor took 27.39ms. Allocated memory is still 390.1MB. Free memory was 305.8MB in the beginning and 303.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 02:23:55,235 INFO L158 Benchmark]: RCFGBuilder took 497.74ms. Allocated memory was 390.1MB in the beginning and 587.2MB in the end (delta: 197.1MB). Free memory was 303.7MB in the beginning and 559.9MB in the end (delta: -256.2MB). Peak memory consumption was 28.8MB. Max. memory is 16.0GB. [2023-08-25 02:23:55,235 INFO L158 Benchmark]: TraceAbstraction took 4612.44ms. Allocated memory is still 587.2MB. Free memory was 558.9MB in the beginning and 553.8MB in the end (delta: 5.1MB). Peak memory consumption was 184.4MB. Max. memory is 16.0GB. [2023-08-25 02:23:55,236 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 390.1MB. Free memory is still 367.7MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 666.44ms. Allocated memory is still 390.1MB. Free memory was 362.4MB in the beginning and 310.0MB in the end (delta: 52.4MB). Peak memory consumption was 52.4MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 41.75ms. Allocated memory is still 390.1MB. Free memory was 309.2MB in the beginning and 305.8MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 27.39ms. Allocated memory is still 390.1MB. Free memory was 305.8MB in the beginning and 303.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 497.74ms. Allocated memory was 390.1MB in the beginning and 587.2MB in the end (delta: 197.1MB). Free memory was 303.7MB in the beginning and 559.9MB in the end (delta: -256.2MB). Peak memory consumption was 28.8MB. Max. memory is 16.0GB. * TraceAbstraction took 4612.44ms. Allocated memory is still 587.2MB. Free memory was 558.9MB in the beginning and 553.8MB in the end (delta: 5.1MB). Peak memory consumption was 184.4MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 237]: Unsoundness Warning unspecified type, defaulting to int C: short [237] - GenericResultAtLocation [Line: 237]: Unsoundness Warning unspecified type, defaulting to int C: short [237] - GenericResultAtLocation [Line: 729]: Unsoundness Warning unspecified type, defaulting to int C: unsigned short [729] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.7s, 147 PlacesBefore, 32 PlacesAfterwards, 150 TransitionsBefore, 29 TransitionsAfterwards, 1008 CoEnabledTransitionPairs, 8 FixpointIterations, 116 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 7 TrivialYvCompositions, 5 ConcurrentYvCompositions, 6 ChoiceCompositions, 177 TotalNumberOfCompositions, 2230 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1091, independent: 897, independent conditional: 0, independent unconditional: 897, dependent: 194, dependent conditional: 0, dependent unconditional: 194, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 539, independent: 513, independent conditional: 0, independent unconditional: 513, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1091, independent: 384, independent conditional: 0, independent unconditional: 384, dependent: 168, dependent conditional: 0, dependent unconditional: 168, unknown: 539, unknown conditional: 0, unknown unconditional: 539] , Statistics on independence cache: Total cache size (in pairs): 27, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 1699]: Data race detected Data race detected The following path leads to a data race: [L1694] 0 pthread_t t1; [L1695] 0 pthread_mutex_t mutex; [L1696] 0 int pdev; [L1726] CALL 0 module_init() [L1705] 0 pdev = 1 [L1706] EXPR 0 pdev==1 [L1706] CALL 0 ldv_assert(pdev==1) [L1693] COND FALSE 0 !(!expression) [L1706] RET 0 ldv_assert(pdev==1) [L1707] COND TRUE 0 __VERIFIER_nondet_int() [L1708] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={4:0}, pdev=1, pthread_create(&t1, ((void *)0), thread1, ((void *)0))=-1, t1={3:0}] [L1699] 1 pdev = 6 VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev=6, t1={3:0}] [L1709] 0 pdev = 2 VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev=2, t1={3:0}] [L1709] 0 pdev = 2 VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev = 2=1153, pdev = 6=1155, pdev=2, t1={3:0}] [L1699] 1 pdev = 6 VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev = 6=1155, pdev=2, t1={3:0}] Now there is a data race on ~pdev~0 between C: pdev = 2 [1709] and C: pdev = 6 [1699] - UnprovableResult [Line: 1705]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1691]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Not analyzed. - UnprovableResult [Line: 1713]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1714]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1710]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1691]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Not analyzed. - UnprovableResult [Line: 1691]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Not analyzed. - UnprovableResult [Line: 1720]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1722]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1723]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1691]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Not analyzed. - UnprovableResult [Line: 1708]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 165 locations, 16 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: 4.5s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 83 IncrementalHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 13 mSDtfsCounter, 83 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=81occurred in iteration=3, InterpolantAutomatonStates: 8, 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, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 RESULT: Ultimate proved your program to be incorrect! [2023-08-25 02:23:55,263 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...