/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.positions.where.we.compute.the.hoare.annotation All --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true --cacsl2boogietranslator.check.unreachability.of.reach_error.function false -i ../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.empire2-owicki-f61efc6-m [2025-03-15 00:04:22,039 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-15 00:04:22,197 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-NoLbe.epf [2025-03-15 00:04:22,227 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-15 00:04:22,228 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-15 00:04:22,228 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-15 00:04:22,229 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-15 00:04:22,229 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-15 00:04:22,229 INFO L153 SettingsManager]: * Use SBE=true [2025-03-15 00:04:22,229 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-15 00:04:22,229 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-15 00:04:22,229 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-15 00:04:22,229 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-15 00:04:22,229 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-15 00:04:22,229 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-15 00:04:22,230 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-15 00:04:22,230 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-15 00:04:22,230 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-15 00:04:22,230 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-15 00:04:22,230 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-15 00:04:22,230 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-15 00:04:22,230 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-03-15 00:04:22,230 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-15 00:04:22,230 INFO L153 SettingsManager]: * To the following directory=./dump/ [2025-03-15 00:04:22,230 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-15 00:04:22,230 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-15 00:04:22,231 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-15 00:04:22,231 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-15 00:04:22,231 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-15 00:04:22,231 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-15 00:04:22,231 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-15 00:04:22,231 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-15 00:04:22,231 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2025-03-15 00:04:22,687 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-15 00:04:22,705 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-15 00:04:22,708 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-15 00:04:22,710 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-15 00:04:22,710 INFO L274 PluginConnector]: CDTParser initialized [2025-03-15 00:04:22,711 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i [2025-03-15 00:04:24,609 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6969fc8a/b21605d5b26f451b937cee13937814bc/FLAGe5bc6590b [2025-03-15 00:04:24,941 INFO L384 CDTParser]: Found 1 translation units. [2025-03-15 00:04:24,945 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i [2025-03-15 00:04:24,963 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6969fc8a/b21605d5b26f451b937cee13937814bc/FLAGe5bc6590b [2025-03-15 00:04:24,997 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6969fc8a/b21605d5b26f451b937cee13937814bc [2025-03-15 00:04:25,000 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-15 00:04:25,005 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-03-15 00:04:25,007 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-15 00:04:25,007 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-15 00:04:25,021 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-15 00:04:25,022 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 12:04:24" (1/1) ... [2025-03-15 00:04:25,027 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69665797 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 12:04:25, skipping insertion in model container [2025-03-15 00:04:25,028 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 12:04:24" (1/1) ... [2025-03-15 00:04:25,101 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-15 00:04:25,434 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-15 00:04:25,450 INFO L200 MainTranslator]: Completed pre-run [2025-03-15 00:04:25,500 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-15 00:04:25,536 INFO L204 MainTranslator]: Completed translation [2025-03-15 00:04:25,537 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 12:04:25 WrapperNode [2025-03-15 00:04:25,538 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-15 00:04:25,539 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-15 00:04:25,539 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-15 00:04:25,539 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-15 00:04:25,546 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 12:04:25" (1/1) ... [2025-03-15 00:04:25,559 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 12:04:25" (1/1) ... [2025-03-15 00:04:25,580 INFO L138 Inliner]: procedures = 163, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 75 [2025-03-15 00:04:25,580 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-15 00:04:25,581 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-15 00:04:25,581 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-15 00:04:25,581 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-15 00:04:25,588 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 12:04:25" (1/1) ... [2025-03-15 00:04:25,588 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 12:04:25" (1/1) ... [2025-03-15 00:04:25,590 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 12:04:25" (1/1) ... [2025-03-15 00:04:25,591 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 12:04:25" (1/1) ... [2025-03-15 00:04:25,596 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 12:04:25" (1/1) ... [2025-03-15 00:04:25,596 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 12:04:25" (1/1) ... [2025-03-15 00:04:25,598 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 12:04:25" (1/1) ... [2025-03-15 00:04:25,600 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 12:04:25" (1/1) ... [2025-03-15 00:04:25,600 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 12:04:25" (1/1) ... [2025-03-15 00:04:25,602 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-15 00:04:25,603 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-03-15 00:04:25,603 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-03-15 00:04:25,603 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-03-15 00:04:25,606 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 12:04:25" (1/1) ... [2025-03-15 00:04:25,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-15 00:04:25,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 00:04:25,650 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) [2025-03-15 00:04:25,652 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 [2025-03-15 00:04:25,712 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockUnlock [2025-03-15 00:04:25,712 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockReadLock [2025-03-15 00:04:25,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-15 00:04:25,712 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2025-03-15 00:04:25,712 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2025-03-15 00:04:25,712 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockWriteLock [2025-03-15 00:04:25,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-15 00:04:25,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-15 00:04:25,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-15 00:04:25,712 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2025-03-15 00:04:25,712 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2025-03-15 00:04:25,713 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-15 00:04:25,825 INFO L234 CfgBuilder]: Building ICFG [2025-03-15 00:04:25,826 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-15 00:04:26,012 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-15 00:04:26,013 INFO L283 CfgBuilder]: Performing block encoding [2025-03-15 00:04:26,042 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-15 00:04:26,043 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-15 00:04:26,043 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 12:04:26 BoogieIcfgContainer [2025-03-15 00:04:26,043 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-03-15 00:04:26,047 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-15 00:04:26,047 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-15 00:04:26,051 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-15 00:04:26,052 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 12:04:24" (1/3) ... [2025-03-15 00:04:26,052 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41a9c74d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 12:04:26, skipping insertion in model container [2025-03-15 00:04:26,052 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 12:04:25" (2/3) ... [2025-03-15 00:04:26,053 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41a9c74d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 12:04:26, skipping insertion in model container [2025-03-15 00:04:26,053 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 12:04:26" (3/3) ... [2025-03-15 00:04:26,054 INFO L128 eAbstractionObserver]: Analyzing ICFG read_write_lock-1.i [2025-03-15 00:04:26,067 INFO L303 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-15 00:04:26,069 INFO L169 ceAbstractionStarter]: Applying trace abstraction to ICFG read_write_lock-1.i that has 3 procedures, 93 locations, 1 initial locations, 0 loop locations, and 3 error locations. [2025-03-15 00:04:26,069 INFO L581 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-15 00:04:26,140 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2025-03-15 00:04:26,175 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-15 00:04:26,189 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@38b972aa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-15 00:04:26,189 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2025-03-15 00:04:26,216 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-15 00:04:26,220 INFO L124 PetriNetUnfolderBase]: 0/42 cut-off events. [2025-03-15 00:04:26,222 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-15 00:04:26,222 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 00:04:26,223 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 00:04:26,223 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting writerErr0ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] === [2025-03-15 00:04:26,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 00:04:26,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1771409777, now seen corresponding path program 1 times [2025-03-15 00:04:26,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 00:04:26,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610987412] [2025-03-15 00:04:26,238 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 00:04:26,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 00:04:26,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 00:04:26,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 00:04:26,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 00:04:26,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610987412] [2025-03-15 00:04:26,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610987412] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 00:04:26,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 00:04:26,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-15 00:04:26,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130003263] [2025-03-15 00:04:26,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 00:04:26,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-15 00:04:26,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 00:04:26,529 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-15 00:04:26,530 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-15 00:04:26,532 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 130 [2025-03-15 00:04:26,538 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 130 transitions, 288 flow. Second operand has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 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) [2025-03-15 00:04:26,538 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 00:04:26,538 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 130 [2025-03-15 00:04:26,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 00:04:29,526 INFO L124 PetriNetUnfolderBase]: 15038/27592 cut-off events. [2025-03-15 00:04:29,526 INFO L125 PetriNetUnfolderBase]: For 2270/2270 co-relation queries the response was YES. [2025-03-15 00:04:29,646 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50431 conditions, 27592 events. 15038/27592 cut-off events. For 2270/2270 co-relation queries the response was YES. Maximal size of possible extension queue 1164. Compared 259973 event pairs, 11002 based on Foata normal form. 2058/24634 useless extension candidates. Maximal degree in co-relation 49876. Up to 17181 conditions per place. [2025-03-15 00:04:29,832 INFO L140 encePairwiseOnDemand]: 117/130 looper letters, 53 selfloop transitions, 8 changer transitions 5/146 dead transitions. [2025-03-15 00:04:29,832 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 146 transitions, 449 flow [2025-03-15 00:04:29,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-15 00:04:29,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-15 00:04:29,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 341 transitions. [2025-03-15 00:04:29,847 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8743589743589744 [2025-03-15 00:04:29,851 INFO L298 CegarLoopForPetriNet]: 139 programPoint places, -4 predicate places. [2025-03-15 00:04:29,851 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 146 transitions, 449 flow [2025-03-15 00:04:29,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 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) [2025-03-15 00:04:29,852 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 00:04:29,852 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 00:04:29,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-15 00:04:29,852 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting readerErr0ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] === [2025-03-15 00:04:29,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 00:04:29,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1135139382, now seen corresponding path program 1 times [2025-03-15 00:04:29,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 00:04:29,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430654653] [2025-03-15 00:04:29,854 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 00:04:29,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 00:04:29,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 00:04:29,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 00:04:29,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 00:04:29,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430654653] [2025-03-15 00:04:29,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430654653] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 00:04:29,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 00:04:29,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-15 00:04:29,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719910956] [2025-03-15 00:04:29,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 00:04:29,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-15 00:04:29,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 00:04:29,922 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-15 00:04:29,922 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-15 00:04:29,922 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 130 [2025-03-15 00:04:29,926 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 146 transitions, 449 flow. Second operand has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 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) [2025-03-15 00:04:29,926 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 00:04:29,926 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 130 [2025-03-15 00:04:29,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 00:04:33,400 INFO L124 PetriNetUnfolderBase]: 21807/43104 cut-off events. [2025-03-15 00:04:33,401 INFO L125 PetriNetUnfolderBase]: For 9468/13972 co-relation queries the response was YES. [2025-03-15 00:04:33,572 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105679 conditions, 43104 events. 21807/43104 cut-off events. For 9468/13972 co-relation queries the response was YES. Maximal size of possible extension queue 1892. Compared 455309 event pairs, 6422 based on Foata normal form. 68/36916 useless extension candidates. Maximal degree in co-relation 104432. Up to 25443 conditions per place. [2025-03-15 00:04:33,771 INFO L140 encePairwiseOnDemand]: 116/130 looper letters, 86 selfloop transitions, 19 changer transitions 6/194 dead transitions. [2025-03-15 00:04:33,771 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 194 transitions, 879 flow [2025-03-15 00:04:33,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-15 00:04:33,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-15 00:04:33,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 342 transitions. [2025-03-15 00:04:33,773 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8769230769230769 [2025-03-15 00:04:33,773 INFO L298 CegarLoopForPetriNet]: 139 programPoint places, -2 predicate places. [2025-03-15 00:04:33,774 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 194 transitions, 879 flow [2025-03-15 00:04:33,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 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) [2025-03-15 00:04:33,774 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 00:04:33,774 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 00:04:33,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-15 00:04:33,774 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting writerErr0ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] === [2025-03-15 00:04:33,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 00:04:33,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1060981563, now seen corresponding path program 1 times [2025-03-15 00:04:33,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 00:04:33,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253893995] [2025-03-15 00:04:33,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 00:04:33,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 00:04:33,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 00:04:34,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 00:04:34,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 00:04:34,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253893995] [2025-03-15 00:04:34,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253893995] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 00:04:34,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 00:04:34,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-15 00:04:34,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452101720] [2025-03-15 00:04:34,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 00:04:34,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-15 00:04:34,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 00:04:34,016 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-15 00:04:34,017 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-15 00:04:34,020 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 130 [2025-03-15 00:04:34,020 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 194 transitions, 879 flow. Second operand has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 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) [2025-03-15 00:04:34,020 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 00:04:34,020 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 130 [2025-03-15 00:04:34,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 00:04:34,281 INFO L124 PetriNetUnfolderBase]: 1468/3565 cut-off events. [2025-03-15 00:04:34,281 INFO L125 PetriNetUnfolderBase]: For 3392/3645 co-relation queries the response was YES. [2025-03-15 00:04:34,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9276 conditions, 3565 events. 1468/3565 cut-off events. For 3392/3645 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 29823 event pairs, 463 based on Foata normal form. 1711/4735 useless extension candidates. Maximal degree in co-relation 9221. Up to 2085 conditions per place. [2025-03-15 00:04:34,301 INFO L140 encePairwiseOnDemand]: 122/130 looper letters, 34 selfloop transitions, 2 changer transitions 2/149 dead transitions. [2025-03-15 00:04:34,301 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 149 transitions, 734 flow [2025-03-15 00:04:34,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-15 00:04:34,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-15 00:04:34,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 325 transitions. [2025-03-15 00:04:34,303 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2025-03-15 00:04:34,303 INFO L298 CegarLoopForPetriNet]: 139 programPoint places, -24 predicate places. [2025-03-15 00:04:34,303 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 149 transitions, 734 flow [2025-03-15 00:04:34,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 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) [2025-03-15 00:04:34,304 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 00:04:34,304 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 00:04:34,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-15 00:04:34,304 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting writerErr0ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] === [2025-03-15 00:04:34,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 00:04:34,304 INFO L85 PathProgramCache]: Analyzing trace with hash 509840385, now seen corresponding path program 2 times [2025-03-15 00:04:34,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 00:04:34,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39583956] [2025-03-15 00:04:34,305 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-15 00:04:34,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 00:04:34,321 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-15 00:04:34,321 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-15 00:04:34,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 00:04:34,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 00:04:34,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39583956] [2025-03-15 00:04:34,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39583956] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 00:04:34,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 00:04:34,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-15 00:04:34,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081465275] [2025-03-15 00:04:34,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 00:04:34,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-15 00:04:34,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 00:04:34,424 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-15 00:04:34,424 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-15 00:04:34,424 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 130 [2025-03-15 00:04:34,425 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 149 transitions, 734 flow. Second operand has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 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) [2025-03-15 00:04:34,425 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 00:04:34,425 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 130 [2025-03-15 00:04:34,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 00:04:34,480 INFO L124 PetriNetUnfolderBase]: 54/273 cut-off events. [2025-03-15 00:04:34,481 INFO L125 PetriNetUnfolderBase]: For 508/608 co-relation queries the response was YES. [2025-03-15 00:04:34,481 INFO L83 FinitePrefix]: Finished finitePrefix Result has 732 conditions, 273 events. 54/273 cut-off events. For 508/608 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1204 event pairs, 26 based on Foata normal form. 35/286 useless extension candidates. Maximal degree in co-relation 663. Up to 118 conditions per place. [2025-03-15 00:04:34,482 INFO L140 encePairwiseOnDemand]: 126/130 looper letters, 17 selfloop transitions, 1 changer transitions 46/107 dead transitions. [2025-03-15 00:04:34,482 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 107 transitions, 544 flow [2025-03-15 00:04:34,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-15 00:04:34,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-15 00:04:34,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 319 transitions. [2025-03-15 00:04:34,484 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8179487179487179 [2025-03-15 00:04:34,485 INFO L298 CegarLoopForPetriNet]: 139 programPoint places, -27 predicate places. [2025-03-15 00:04:34,485 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 107 transitions, 544 flow [2025-03-15 00:04:34,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 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) [2025-03-15 00:04:34,485 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 00:04:34,485 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 00:04:34,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-15 00:04:34,486 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting writerErr0ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] === [2025-03-15 00:04:34,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 00:04:34,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1982342729, now seen corresponding path program 1 times [2025-03-15 00:04:34,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 00:04:34,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090662862] [2025-03-15 00:04:34,487 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 00:04:34,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 00:04:34,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 00:04:34,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 00:04:34,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 00:04:34,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090662862] [2025-03-15 00:04:34,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090662862] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 00:04:34,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 00:04:34,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-15 00:04:34,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200101189] [2025-03-15 00:04:34,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 00:04:34,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-15 00:04:34,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 00:04:34,525 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-15 00:04:34,525 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-15 00:04:34,525 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 130 [2025-03-15 00:04:34,526 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 107 transitions, 544 flow. Second operand has 3 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 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) [2025-03-15 00:04:34,526 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 00:04:34,526 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 130 [2025-03-15 00:04:34,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 00:04:34,579 INFO L124 PetriNetUnfolderBase]: 55/261 cut-off events. [2025-03-15 00:04:34,579 INFO L125 PetriNetUnfolderBase]: For 587/743 co-relation queries the response was YES. [2025-03-15 00:04:34,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 849 conditions, 261 events. 55/261 cut-off events. For 587/743 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1116 event pairs, 20 based on Foata normal form. 0/244 useless extension candidates. Maximal degree in co-relation 778. Up to 121 conditions per place. [2025-03-15 00:04:34,580 INFO L140 encePairwiseOnDemand]: 127/130 looper letters, 0 selfloop transitions, 0 changer transitions 107/107 dead transitions. [2025-03-15 00:04:34,580 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 107 transitions, 629 flow [2025-03-15 00:04:34,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-15 00:04:34,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-15 00:04:34,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 294 transitions. [2025-03-15 00:04:34,581 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7538461538461538 [2025-03-15 00:04:34,582 INFO L298 CegarLoopForPetriNet]: 139 programPoint places, -26 predicate places. [2025-03-15 00:04:34,582 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 107 transitions, 629 flow [2025-03-15 00:04:34,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 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) [2025-03-15 00:04:34,587 INFO L161 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/read_write_lock-1.i_petrified1_AllErrorsAtOnce [2025-03-15 00:04:34,606 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONDATA_RACE (12 of 13 remaining) [2025-03-15 00:04:34,607 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONDATA_RACE (11 of 13 remaining) [2025-03-15 00:04:34,607 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 13 remaining) [2025-03-15 00:04:34,607 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 13 remaining) [2025-03-15 00:04:34,607 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 13 remaining) [2025-03-15 00:04:34,607 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 13 remaining) [2025-03-15 00:04:34,607 INFO L782 garLoopResultBuilder]: Registering result SAFE for location writerErr0ASSERT_VIOLATIONDATA_RACE (6 of 13 remaining) [2025-03-15 00:04:34,607 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONDATA_RACE (5 of 13 remaining) [2025-03-15 00:04:34,607 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONDATA_RACE (4 of 13 remaining) [2025-03-15 00:04:34,607 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONDATA_RACE (3 of 13 remaining) [2025-03-15 00:04:34,607 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONDATA_RACE (2 of 13 remaining) [2025-03-15 00:04:34,607 INFO L782 garLoopResultBuilder]: Registering result SAFE for location writerErr0ASSERT_VIOLATIONDATA_RACE (1 of 13 remaining) [2025-03-15 00:04:34,607 INFO L782 garLoopResultBuilder]: Registering result SAFE for location writerErr0ASSERT_VIOLATIONDATA_RACE (0 of 13 remaining) [2025-03-15 00:04:34,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-15 00:04:34,608 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2025-03-15 00:04:34,614 INFO L328 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-15 00:04:34,614 INFO L188 ceAbstractionStarter]: Computing trace abstraction results [2025-03-15 00:04:34,620 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 12:04:34 BasicIcfg [2025-03-15 00:04:34,620 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-15 00:04:34,621 INFO L158 Benchmark]: Toolchain (without parser) took 9619.27ms. Allocated memory was 71.3MB in the beginning and 2.1GB in the end (delta: 2.0GB). Free memory was 42.6MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 586.2MB. Max. memory is 8.0GB. [2025-03-15 00:04:34,621 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 71.3MB. Free memory was 33.3MB in the beginning and 33.3MB in the end (delta: 42.0kB). There was no memory consumed. Max. memory is 8.0GB. [2025-03-15 00:04:34,621 INFO L158 Benchmark]: CACSL2BoogieTranslator took 531.04ms. Allocated memory is still 71.3MB. Free memory was 42.5MB in the beginning and 23.1MB in the end (delta: 19.4MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2025-03-15 00:04:34,621 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.66ms. Allocated memory is still 71.3MB. Free memory was 22.9MB in the beginning and 21.3MB in the end (delta: 1.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-03-15 00:04:34,621 INFO L158 Benchmark]: Boogie Preprocessor took 21.21ms. Allocated memory is still 71.3MB. Free memory was 21.3MB in the beginning and 20.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 8.0GB. [2025-03-15 00:04:34,622 INFO L158 Benchmark]: RCFGBuilder took 439.99ms. Allocated memory is still 71.3MB. Free memory was 20.2MB in the beginning and 32.5MB in the end (delta: -12.3MB). Peak memory consumption was 7.1MB. Max. memory is 8.0GB. [2025-03-15 00:04:34,623 INFO L158 Benchmark]: TraceAbstraction took 8573.28ms. Allocated memory was 71.3MB in the beginning and 2.1GB in the end (delta: 2.0GB). Free memory was 31.4MB in the beginning and 1.5GB in the end (delta: -1.5GB). Peak memory consumption was 574.9MB. Max. memory is 8.0GB. [2025-03-15 00:04:34,624 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 71.3MB. Free memory was 33.3MB in the beginning and 33.3MB in the end (delta: 42.0kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 531.04ms. Allocated memory is still 71.3MB. Free memory was 42.5MB in the beginning and 23.1MB in the end (delta: 19.4MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 41.66ms. Allocated memory is still 71.3MB. Free memory was 22.9MB in the beginning and 21.3MB in the end (delta: 1.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 21.21ms. Allocated memory is still 71.3MB. Free memory was 21.3MB in the beginning and 20.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 439.99ms. Allocated memory is still 71.3MB. Free memory was 20.2MB in the beginning and 32.5MB in the end (delta: -12.3MB). Peak memory consumption was 7.1MB. Max. memory is 8.0GB. * TraceAbstraction took 8573.28ms. Allocated memory was 71.3MB in the beginning and 2.1GB in the end (delta: 2.0GB). Free memory was 31.4MB in the beginning and 1.5GB in the end (delta: -1.5GB). Peak memory consumption was 574.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 684]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 685]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 678]: 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 7 procedures, 165 locations, 13 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: 8.4s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 7.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 50 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 50 mSDsluCounter, 78 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 225 IncrementalHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 78 mSDtfsCounter, 225 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=879occurred in iteration=2, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 221 NumberOfCodeBlocks, 221 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 216 ConstructedInterpolants, 0 QuantifiedInterpolants, 283 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-15 00:04:34,638 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...