/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 -i ../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.empire2-owicki-f61efc6-m [2025-03-14 21:35:26,479 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-14 21:35:26,557 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 [2025-03-14 21:35:26,583 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-14 21:35:26,583 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-14 21:35:26,584 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-14 21:35:26,584 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-14 21:35:26,584 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-14 21:35:26,584 INFO L153 SettingsManager]: * Use SBE=true [2025-03-14 21:35:26,584 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-14 21:35:26,584 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-14 21:35:26,584 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-14 21:35:26,584 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-14 21:35:26,584 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-14 21:35:26,584 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-14 21:35:26,584 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-14 21:35:26,584 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-14 21:35:26,584 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-14 21:35:26,585 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-14 21:35:26,585 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-14 21:35:26,585 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-14 21:35:26,585 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-03-14 21:35:26,585 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-14 21:35:26,585 INFO L153 SettingsManager]: * To the following directory=./dump/ [2025-03-14 21:35:26,585 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-14 21:35:26,585 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-14 21:35:26,585 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-14 21:35:26,585 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-14 21:35:26,585 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-14 21:35:26,585 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-14 21:35:26,587 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-14 21:35:26,587 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-14 21:35:26,587 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 [2025-03-14 21:35:26,812 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-14 21:35:26,818 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-14 21:35:26,819 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-14 21:35:26,820 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-14 21:35:26,820 INFO L274 PluginConnector]: CDTParser initialized [2025-03-14 21:35:26,823 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i [2025-03-14 21:35:27,988 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a14d9f18/e859959422e04363a4658ce06761978c/FLAGea008b03b [2025-03-14 21:35:28,229 INFO L384 CDTParser]: Found 1 translation units. [2025-03-14 21:35:28,229 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i [2025-03-14 21:35:28,244 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a14d9f18/e859959422e04363a4658ce06761978c/FLAGea008b03b [2025-03-14 21:35:28,259 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a14d9f18/e859959422e04363a4658ce06761978c [2025-03-14 21:35:28,261 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-14 21:35:28,262 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-03-14 21:35:28,263 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-14 21:35:28,263 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-14 21:35:28,266 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-14 21:35:28,266 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.03 09:35:28" (1/1) ... [2025-03-14 21:35:28,267 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@635f3d4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 09:35:28, skipping insertion in model container [2025-03-14 21:35:28,267 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.03 09:35:28" (1/1) ... [2025-03-14 21:35:28,294 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-14 21:35:28,516 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i[30145,30158] [2025-03-14 21:35:28,522 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-14 21:35:28,539 INFO L200 MainTranslator]: Completed pre-run [2025-03-14 21:35:28,570 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i[30145,30158] [2025-03-14 21:35:28,575 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-14 21:35:28,607 INFO L204 MainTranslator]: Completed translation [2025-03-14 21:35:28,608 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 09:35:28 WrapperNode [2025-03-14 21:35:28,608 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-14 21:35:28,609 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-14 21:35:28,609 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-14 21:35:28,609 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-14 21:35:28,613 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 09:35:28" (1/1) ... [2025-03-14 21:35:28,622 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 09:35:28" (1/1) ... [2025-03-14 21:35:28,635 INFO L138 Inliner]: procedures = 163, calls = 26, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 56 [2025-03-14 21:35:28,636 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-14 21:35:28,636 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-14 21:35:28,636 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-14 21:35:28,636 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-14 21:35:28,642 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 09:35:28" (1/1) ... [2025-03-14 21:35:28,642 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 09:35:28" (1/1) ... [2025-03-14 21:35:28,645 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 09:35:28" (1/1) ... [2025-03-14 21:35:28,646 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 09:35:28" (1/1) ... [2025-03-14 21:35:28,652 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 09:35:28" (1/1) ... [2025-03-14 21:35:28,653 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 09:35:28" (1/1) ... [2025-03-14 21:35:28,654 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 09:35:28" (1/1) ... [2025-03-14 21:35:28,656 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 09:35:28" (1/1) ... [2025-03-14 21:35:28,657 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 09:35:28" (1/1) ... [2025-03-14 21:35:28,658 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-14 21:35:28,658 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-03-14 21:35:28,658 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-03-14 21:35:28,658 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-03-14 21:35:28,659 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 09:35:28" (1/1) ... [2025-03-14 21:35:28,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-14 21:35:28,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 21:35:28,680 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) [2025-03-14 21:35:28,682 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 [2025-03-14 21:35:28,709 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockUnlock [2025-03-14 21:35:28,709 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockReadLock [2025-03-14 21:35:28,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-14 21:35:28,709 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2025-03-14 21:35:28,709 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2025-03-14 21:35:28,709 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockWriteLock [2025-03-14 21:35:28,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-14 21:35:28,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-14 21:35:28,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-14 21:35:28,709 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2025-03-14 21:35:28,709 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2025-03-14 21:35:28,710 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-14 21:35:28,791 INFO L234 CfgBuilder]: Building ICFG [2025-03-14 21:35:28,792 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-14 21:35:28,902 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-14 21:35:28,902 INFO L283 CfgBuilder]: Performing block encoding [2025-03-14 21:35:28,925 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-14 21:35:28,925 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-14 21:35:28,925 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.03 09:35:28 BoogieIcfgContainer [2025-03-14 21:35:28,926 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-03-14 21:35:28,928 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-14 21:35:28,928 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-14 21:35:28,931 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-14 21:35:28,932 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.03 09:35:28" (1/3) ... [2025-03-14 21:35:28,932 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a00744b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.03 09:35:28, skipping insertion in model container [2025-03-14 21:35:28,932 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 09:35:28" (2/3) ... [2025-03-14 21:35:28,932 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a00744b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.03 09:35:28, skipping insertion in model container [2025-03-14 21:35:28,933 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.03 09:35:28" (3/3) ... [2025-03-14 21:35:28,933 INFO L128 eAbstractionObserver]: Analyzing ICFG read_write_lock-1.i [2025-03-14 21:35:28,943 INFO L303 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-14 21:35:28,944 INFO L169 ceAbstractionStarter]: Applying trace abstraction to ICFG read_write_lock-1.i that has 3 procedures, 80 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-03-14 21:35:28,945 INFO L581 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-14 21:35:29,013 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2025-03-14 21:35:29,048 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-14 21:35:29,058 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;@3c3e9615, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-14 21:35:29,059 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2025-03-14 21:35:29,087 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-14 21:35:29,090 INFO L124 PetriNetUnfolderBase]: 1/57 cut-off events. [2025-03-14 21:35:29,091 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-14 21:35:29,091 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 21:35:29,092 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] [2025-03-14 21:35:29,092 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-14 21:35:29,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 21:35:29,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1665722525, now seen corresponding path program 1 times [2025-03-14 21:35:29,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 21:35:29,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587390640] [2025-03-14 21:35:29,100 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 21:35:29,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 21:35:29,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 21:35:29,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 21:35:29,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 21:35:29,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587390640] [2025-03-14 21:35:29,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587390640] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 21:35:29,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 21:35:29,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-14 21:35:29,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606193181] [2025-03-14 21:35:29,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 21:35:29,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-14 21:35:29,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 21:35:29,281 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-14 21:35:29,281 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-14 21:35:29,282 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 102 [2025-03-14 21:35:29,284 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 102 transitions, 232 flow. Second operand has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 21:35:29,285 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 21:35:29,285 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 102 [2025-03-14 21:35:29,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 21:35:30,021 INFO L124 PetriNetUnfolderBase]: 2501/5184 cut-off events. [2025-03-14 21:35:30,022 INFO L125 PetriNetUnfolderBase]: For 975/975 co-relation queries the response was YES. [2025-03-14 21:35:30,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9498 conditions, 5184 events. 2501/5184 cut-off events. For 975/975 co-relation queries the response was YES. Maximal size of possible extension queue 327. Compared 42496 event pairs, 1300 based on Foata normal form. 284/5123 useless extension candidates. Maximal degree in co-relation 9122. Up to 2301 conditions per place. [2025-03-14 21:35:30,066 INFO L140 encePairwiseOnDemand]: 95/102 looper letters, 38 selfloop transitions, 4 changer transitions 6/115 dead transitions. [2025-03-14 21:35:30,067 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 115 transitions, 360 flow [2025-03-14 21:35:30,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-14 21:35:30,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-14 21:35:30,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 273 transitions. [2025-03-14 21:35:30,077 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8921568627450981 [2025-03-14 21:35:30,081 INFO L298 CegarLoopForPetriNet]: 113 programPoint places, -2 predicate places. [2025-03-14 21:35:30,081 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 115 transitions, 360 flow [2025-03-14 21:35:30,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 21:35:30,082 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 21:35:30,082 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] [2025-03-14 21:35:30,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-14 21:35:30,082 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-14 21:35:30,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 21:35:30,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1020749473, now seen corresponding path program 1 times [2025-03-14 21:35:30,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 21:35:30,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172220568] [2025-03-14 21:35:30,083 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 21:35:30,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 21:35:30,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 21:35:30,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 21:35:30,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 21:35:30,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172220568] [2025-03-14 21:35:30,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172220568] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 21:35:30,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 21:35:30,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-14 21:35:30,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572813636] [2025-03-14 21:35:30,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 21:35:30,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-14 21:35:30,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 21:35:30,295 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-14 21:35:30,295 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-14 21:35:30,296 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 102 [2025-03-14 21:35:30,296 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 115 transitions, 360 flow. Second operand has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 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) [2025-03-14 21:35:30,296 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 21:35:30,299 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 102 [2025-03-14 21:35:30,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 21:35:30,379 INFO L124 PetriNetUnfolderBase]: 159/456 cut-off events. [2025-03-14 21:35:30,379 INFO L125 PetriNetUnfolderBase]: For 413/444 co-relation queries the response was YES. [2025-03-14 21:35:30,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1009 conditions, 456 events. 159/456 cut-off events. For 413/444 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2460 event pairs, 80 based on Foata normal form. 344/750 useless extension candidates. Maximal degree in co-relation 955. Up to 200 conditions per place. [2025-03-14 21:35:30,382 INFO L140 encePairwiseOnDemand]: 94/102 looper letters, 24 selfloop transitions, 4 changer transitions 0/86 dead transitions. [2025-03-14 21:35:30,383 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 86 transitions, 317 flow [2025-03-14 21:35:30,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-14 21:35:30,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-14 21:35:30,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 247 transitions. [2025-03-14 21:35:30,386 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8071895424836601 [2025-03-14 21:35:30,387 INFO L298 CegarLoopForPetriNet]: 113 programPoint places, -24 predicate places. [2025-03-14 21:35:30,387 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 86 transitions, 317 flow [2025-03-14 21:35:30,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 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) [2025-03-14 21:35:30,387 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 21:35:30,387 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] [2025-03-14 21:35:30,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-14 21:35:30,387 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-14 21:35:30,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 21:35:30,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1054520801, now seen corresponding path program 2 times [2025-03-14 21:35:30,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 21:35:30,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582722543] [2025-03-14 21:35:30,388 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 21:35:30,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 21:35:30,416 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-14 21:35:30,416 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 21:35:30,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 21:35:30,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 21:35:30,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582722543] [2025-03-14 21:35:30,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582722543] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 21:35:30,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 21:35:30,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-14 21:35:30,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001934200] [2025-03-14 21:35:30,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 21:35:30,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-14 21:35:30,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 21:35:30,507 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-14 21:35:30,507 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-14 21:35:30,507 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 102 [2025-03-14 21:35:30,508 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 86 transitions, 317 flow. Second operand has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 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) [2025-03-14 21:35:30,508 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 21:35:30,508 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 102 [2025-03-14 21:35:30,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 21:35:30,555 INFO L124 PetriNetUnfolderBase]: 26/142 cut-off events. [2025-03-14 21:35:30,555 INFO L125 PetriNetUnfolderBase]: For 163/230 co-relation queries the response was YES. [2025-03-14 21:35:30,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 348 conditions, 142 events. 26/142 cut-off events. For 163/230 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 392 event pairs, 7 based on Foata normal form. 20/150 useless extension candidates. Maximal degree in co-relation 280. Up to 43 conditions per place. [2025-03-14 21:35:30,556 INFO L140 encePairwiseOnDemand]: 98/102 looper letters, 25 selfloop transitions, 0 changer transitions 11/83 dead transitions. [2025-03-14 21:35:30,556 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 83 transitions, 377 flow [2025-03-14 21:35:30,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-14 21:35:30,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-14 21:35:30,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 241 transitions. [2025-03-14 21:35:30,559 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7875816993464052 [2025-03-14 21:35:30,560 INFO L298 CegarLoopForPetriNet]: 113 programPoint places, -24 predicate places. [2025-03-14 21:35:30,560 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 83 transitions, 377 flow [2025-03-14 21:35:30,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 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) [2025-03-14 21:35:30,560 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 21:35:30,560 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, 1, 1, 1, 1, 1] [2025-03-14 21:35:30,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-14 21:35:30,561 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-14 21:35:30,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 21:35:30,561 INFO L85 PathProgramCache]: Analyzing trace with hash -370913189, now seen corresponding path program 1 times [2025-03-14 21:35:30,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 21:35:30,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266770460] [2025-03-14 21:35:30,561 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 21:35:30,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 21:35:30,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 21:35:30,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 21:35:30,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 21:35:30,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266770460] [2025-03-14 21:35:30,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266770460] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 21:35:30,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 21:35:30,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-14 21:35:30,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668627754] [2025-03-14 21:35:30,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 21:35:30,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-14 21:35:30,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 21:35:30,617 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-14 21:35:30,617 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-14 21:35:30,617 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 102 [2025-03-14 21:35:30,617 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 83 transitions, 377 flow. Second operand has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 21:35:30,617 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 21:35:30,617 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 102 [2025-03-14 21:35:30,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 21:35:30,647 INFO L124 PetriNetUnfolderBase]: 23/136 cut-off events. [2025-03-14 21:35:30,647 INFO L125 PetriNetUnfolderBase]: For 259/394 co-relation queries the response was YES. [2025-03-14 21:35:30,648 INFO L83 FinitePrefix]: Finished finitePrefix Result has 395 conditions, 136 events. 23/136 cut-off events. For 259/394 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 372 event pairs, 5 based on Foata normal form. 0/129 useless extension candidates. Maximal degree in co-relation 324. Up to 48 conditions per place. [2025-03-14 21:35:30,648 INFO L140 encePairwiseOnDemand]: 100/102 looper letters, 0 selfloop transitions, 0 changer transitions 83/83 dead transitions. [2025-03-14 21:35:30,648 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 83 transitions, 443 flow [2025-03-14 21:35:30,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-14 21:35:30,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-14 21:35:30,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 244 transitions. [2025-03-14 21:35:30,649 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7973856209150327 [2025-03-14 21:35:30,649 INFO L298 CegarLoopForPetriNet]: 113 programPoint places, -24 predicate places. [2025-03-14 21:35:30,649 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 83 transitions, 443 flow [2025-03-14 21:35:30,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 21:35:30,655 INFO L161 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/read_write_lock-1.i_petrified1_AllErrorsAtOnce [2025-03-14 21:35:30,671 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2025-03-14 21:35:30,671 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 7 remaining) [2025-03-14 21:35:30,671 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2025-03-14 21:35:30,671 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2025-03-14 21:35:30,671 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2025-03-14 21:35:30,671 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2025-03-14 21:35:30,671 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2025-03-14 21:35:30,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-14 21:35:30,672 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2025-03-14 21:35:30,675 INFO L328 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-14 21:35:30,676 INFO L188 ceAbstractionStarter]: Computing trace abstraction results [2025-03-14 21:35:30,680 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.03 09:35:30 BasicIcfg [2025-03-14 21:35:30,680 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-14 21:35:30,680 INFO L158 Benchmark]: Toolchain (without parser) took 2418.92ms. Allocated memory was 71.3MB in the beginning and 218.1MB in the end (delta: 146.8MB). Free memory was 44.0MB in the beginning and 139.5MB in the end (delta: -95.4MB). Peak memory consumption was 49.7MB. Max. memory is 8.0GB. [2025-03-14 21:35:30,681 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 71.3MB. Free memory was 33.8MB in the beginning and 33.8MB in the end (delta: 42.0kB). There was no memory consumed. Max. memory is 8.0GB. [2025-03-14 21:35:30,681 INFO L158 Benchmark]: CACSL2BoogieTranslator took 345.50ms. Allocated memory is still 71.3MB. Free memory was 43.9MB in the beginning and 24.3MB in the end (delta: 19.6MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2025-03-14 21:35:30,681 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.70ms. Allocated memory is still 71.3MB. Free memory was 24.3MB in the beginning and 22.6MB in the end (delta: 1.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-03-14 21:35:30,681 INFO L158 Benchmark]: Boogie Preprocessor took 21.71ms. Allocated memory is still 71.3MB. Free memory was 22.6MB in the beginning and 21.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 8.0GB. [2025-03-14 21:35:30,681 INFO L158 Benchmark]: RCFGBuilder took 267.45ms. Allocated memory is still 71.3MB. Free memory was 21.6MB in the beginning and 34.6MB in the end (delta: -13.0MB). Peak memory consumption was 2.7MB. Max. memory is 8.0GB. [2025-03-14 21:35:30,681 INFO L158 Benchmark]: TraceAbstraction took 1751.96ms. Allocated memory was 71.3MB in the beginning and 218.1MB in the end (delta: 146.8MB). Free memory was 33.6MB in the beginning and 139.5MB in the end (delta: -105.9MB). Peak memory consumption was 47.0MB. Max. memory is 8.0GB. [2025-03-14 21:35:30,683 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 71.3MB. Free memory was 33.8MB in the beginning and 33.8MB in the end (delta: 42.0kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 345.50ms. Allocated memory is still 71.3MB. Free memory was 43.9MB in the beginning and 24.3MB in the end (delta: 19.6MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 26.70ms. Allocated memory is still 71.3MB. Free memory was 24.3MB in the beginning and 22.6MB in the end (delta: 1.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 21.71ms. Allocated memory is still 71.3MB. Free memory was 22.6MB in the beginning and 21.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 267.45ms. Allocated memory is still 71.3MB. Free memory was 21.6MB in the beginning and 34.6MB in the end (delta: -13.0MB). Peak memory consumption was 2.7MB. Max. memory is 8.0GB. * TraceAbstraction took 1751.96ms. Allocated memory was 71.3MB in the beginning and 218.1MB in the end (delta: 146.8MB). Free memory was 33.6MB in the beginning and 139.5MB in the end (delta: -105.9MB). Peak memory consumption was 47.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 685]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 126 locations, 7 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: 1.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 26 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 26 mSDsluCounter, 40 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 135 IncrementalHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 40 mSDtfsCounter, 135 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=443occurred in iteration=4, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 188 NumberOfCodeBlocks, 188 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 184 ConstructedInterpolants, 0 QuantifiedInterpolants, 266 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-14 21:35:30,695 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...