/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-2.i -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.empire2-owicki-f61efc6-m [2025-03-15 00:04:23,020 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-15 00:04:23,071 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 00:04:23,116 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-15 00:04:23,117 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-15 00:04:23,117 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-15 00:04:23,117 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-15 00:04:23,117 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-15 00:04:23,117 INFO L153 SettingsManager]: * Use SBE=true [2025-03-15 00:04:23,117 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-15 00:04:23,117 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-15 00:04:23,117 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-15 00:04:23,117 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-15 00:04:23,118 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-15 00:04:23,118 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-15 00:04:23,118 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-15 00:04:23,118 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-15 00:04:23,118 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-15 00:04:23,118 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-15 00:04:23,118 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-15 00:04:23,118 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-15 00:04:23,118 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-03-15 00:04:23,118 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-15 00:04:23,118 INFO L153 SettingsManager]: * To the following directory=./dump/ [2025-03-15 00:04:23,118 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-15 00:04:23,118 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-15 00:04:23,118 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-15 00:04:23,118 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-15 00:04:23,119 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-15 00:04:23,119 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-15 00:04:23,119 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-15 00:04:23,119 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-15 00:04:23,119 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 00:04:23,377 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-15 00:04:23,383 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-15 00:04:23,386 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-15 00:04:23,387 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-15 00:04:23,388 INFO L274 PluginConnector]: CDTParser initialized [2025-03-15 00:04:23,390 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-2.i [2025-03-15 00:04:24,602 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6cd4b0068/82df4159f4204efa9f49e8b8f1902813/FLAG3895e0055 [2025-03-15 00:04:24,836 INFO L384 CDTParser]: Found 1 translation units. [2025-03-15 00:04:24,836 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-2.i [2025-03-15 00:04:24,853 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6cd4b0068/82df4159f4204efa9f49e8b8f1902813/FLAG3895e0055 [2025-03-15 00:04:24,871 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6cd4b0068/82df4159f4204efa9f49e8b8f1902813 [2025-03-15 00:04:24,873 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-15 00:04:24,874 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-03-15 00:04:24,876 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-15 00:04:24,876 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-15 00:04:24,879 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-15 00:04:24,879 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 12:04:24" (1/1) ... [2025-03-15 00:04:24,880 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@314eb7aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 12:04:24, skipping insertion in model container [2025-03-15 00:04:24,881 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 12:04:24" (1/1) ... [2025-03-15 00:04:24,911 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-15 00:04:25,098 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-15 00:04:25,105 INFO L200 MainTranslator]: Completed pre-run [2025-03-15 00:04:25,136 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-15 00:04:25,161 INFO L204 MainTranslator]: Completed translation [2025-03-15 00:04:25,161 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 12:04:25 WrapperNode [2025-03-15 00:04:25,161 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-15 00:04:25,162 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-15 00:04:25,163 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-15 00:04:25,163 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-15 00:04:25,167 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 00:04:25,175 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 00:04:25,192 INFO L138 Inliner]: procedures = 172, calls = 31, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 140 [2025-03-15 00:04:25,192 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-15 00:04:25,193 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-15 00:04:25,193 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-15 00:04:25,193 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-15 00:04:25,197 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 00:04:25,197 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 00:04:25,199 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 00:04:25,199 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 00:04:25,206 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 00:04:25,207 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 00:04:25,208 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 00:04:25,214 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 00:04:25,215 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 00:04:25,216 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-15 00:04:25,217 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-03-15 00:04:25,217 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-03-15 00:04:25,217 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-03-15 00:04:25,217 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 00:04:25,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-15 00:04:25,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 00:04:25,250 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 00:04:25,253 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 00:04:25,272 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-15 00:04:25,273 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-15 00:04:25,273 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2025-03-15 00:04:25,273 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2025-03-15 00:04:25,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-15 00:04:25,273 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-15 00:04:25,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-15 00:04:25,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-15 00:04:25,273 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2025-03-15 00:04:25,273 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2025-03-15 00:04:25,274 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 00:04:25,389 INFO L234 CfgBuilder]: Building ICFG [2025-03-15 00:04:25,390 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-15 00:04:25,574 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-15 00:04:25,574 INFO L283 CfgBuilder]: Performing block encoding [2025-03-15 00:04:25,679 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-15 00:04:25,679 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-15 00:04:25,680 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 12:04:25 BoogieIcfgContainer [2025-03-15 00:04:25,680 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-03-15 00:04:25,684 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-15 00:04:25,684 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-15 00:04:25,687 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-15 00:04:25,688 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 12:04:24" (1/3) ... [2025-03-15 00:04:25,688 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cd6e424 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 12:04:25, skipping insertion in model container [2025-03-15 00:04:25,688 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 00:04:25,688 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cd6e424 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 12:04:25, skipping insertion in model container [2025-03-15 00:04:25,688 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 12:04:25" (3/3) ... [2025-03-15 00:04:25,689 INFO L128 eAbstractionObserver]: Analyzing ICFG read_write_lock-2.i [2025-03-15 00:04:25,700 INFO L303 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-15 00:04:25,702 INFO L169 ceAbstractionStarter]: Applying trace abstraction to ICFG read_write_lock-2.i that has 3 procedures, 87 locations, 1 initial locations, 0 loop locations, and 14 error locations. [2025-03-15 00:04:25,702 INFO L581 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-15 00:04:25,773 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2025-03-15 00:04:25,803 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-15 00:04:25,811 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;@385fcdcf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-15 00:04:25,811 INFO L334 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2025-03-15 00:04:25,830 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-15 00:04:25,831 INFO L124 PetriNetUnfolderBase]: 0/22 cut-off events. [2025-03-15 00:04:25,832 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-15 00:04:25,833 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 00:04:25,833 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] [2025-03-15 00:04:25,833 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting writerErr0ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2025-03-15 00:04:25,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 00:04:25,838 INFO L85 PathProgramCache]: Analyzing trace with hash -769987644, now seen corresponding path program 1 times [2025-03-15 00:04:25,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 00:04:25,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202868279] [2025-03-15 00:04:25,844 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 00:04:25,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 00:04:25,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 00:04:25,965 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 00:04:25,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 00:04:25,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202868279] [2025-03-15 00:04:25,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202868279] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 00:04:25,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 00:04:25,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-15 00:04:25,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866106248] [2025-03-15 00:04:25,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 00:04:25,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-15 00:04:25,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 00:04:25,994 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-15 00:04:25,994 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-15 00:04:25,997 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 128 [2025-03-15 00:04:26,001 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 128 transitions, 284 flow. Second operand has 2 states, 2 states have (on average 69.0) internal successors, (138), 2 states have internal predecessors, (138), 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 00:04:26,001 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 00:04:26,001 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 128 [2025-03-15 00:04:26,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 00:04:26,942 INFO L124 PetriNetUnfolderBase]: 3363/6306 cut-off events. [2025-03-15 00:04:26,943 INFO L125 PetriNetUnfolderBase]: For 1056/1056 co-relation queries the response was YES. [2025-03-15 00:04:26,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11787 conditions, 6306 events. 3363/6306 cut-off events. For 1056/1056 co-relation queries the response was YES. Maximal size of possible extension queue 320. Compared 48188 event pairs, 3363 based on Foata normal form. 628/6712 useless extension candidates. Maximal degree in co-relation 11450. Up to 4849 conditions per place. [2025-03-15 00:04:26,970 INFO L140 encePairwiseOnDemand]: 96/128 looper letters, 0 selfloop transitions, 0 changer transitions 90/90 dead transitions. [2025-03-15 00:04:26,970 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 90 transitions, 260 flow [2025-03-15 00:04:26,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-15 00:04:26,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-15 00:04:26,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 196 transitions. [2025-03-15 00:04:26,979 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.765625 [2025-03-15 00:04:26,982 INFO L298 CegarLoopForPetriNet]: 137 programPoint places, -33 predicate places. [2025-03-15 00:04:26,982 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 90 transitions, 260 flow [2025-03-15 00:04:26,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 69.0) internal successors, (138), 2 states have internal predecessors, (138), 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 00:04:26,990 INFO L161 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/read_write_lock-2.i_petrified1_AllErrorsAtOnce [2025-03-15 00:04:27,007 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONDATA_RACE (45 of 46 remaining) [2025-03-15 00:04:27,007 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONDATA_RACE (44 of 46 remaining) [2025-03-15 00:04:27,007 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONDATA_RACE (43 of 46 remaining) [2025-03-15 00:04:27,007 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONDATA_RACE (42 of 46 remaining) [2025-03-15 00:04:27,007 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr4ASSERT_VIOLATIONDATA_RACE (41 of 46 remaining) [2025-03-15 00:04:27,007 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr5ASSERT_VIOLATIONDATA_RACE (40 of 46 remaining) [2025-03-15 00:04:27,007 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr6ASSERT_VIOLATIONDATA_RACE (39 of 46 remaining) [2025-03-15 00:04:27,008 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr7ASSERT_VIOLATIONDATA_RACE (38 of 46 remaining) [2025-03-15 00:04:27,008 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr8ASSERT_VIOLATIONDATA_RACE (37 of 46 remaining) [2025-03-15 00:04:27,008 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 46 remaining) [2025-03-15 00:04:27,008 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (35 of 46 remaining) [2025-03-15 00:04:27,008 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 46 remaining) [2025-03-15 00:04:27,008 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (33 of 46 remaining) [2025-03-15 00:04:27,008 INFO L782 garLoopResultBuilder]: Registering result SAFE for location writerErr0ASSERT_VIOLATIONDATA_RACE (32 of 46 remaining) [2025-03-15 00:04:27,008 INFO L782 garLoopResultBuilder]: Registering result SAFE for location writerErr1ASSERT_VIOLATIONDATA_RACE (31 of 46 remaining) [2025-03-15 00:04:27,008 INFO L782 garLoopResultBuilder]: Registering result SAFE for location writerErr2ASSERT_VIOLATIONDATA_RACE (30 of 46 remaining) [2025-03-15 00:04:27,008 INFO L782 garLoopResultBuilder]: Registering result SAFE for location writerErr3ASSERT_VIOLATIONDATA_RACE (29 of 46 remaining) [2025-03-15 00:04:27,008 INFO L782 garLoopResultBuilder]: Registering result SAFE for location writerErr4ASSERT_VIOLATIONDATA_RACE (28 of 46 remaining) [2025-03-15 00:04:27,008 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONDATA_RACE (27 of 46 remaining) [2025-03-15 00:04:27,008 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONDATA_RACE (26 of 46 remaining) [2025-03-15 00:04:27,008 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONDATA_RACE (25 of 46 remaining) [2025-03-15 00:04:27,008 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONDATA_RACE (24 of 46 remaining) [2025-03-15 00:04:27,008 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr4ASSERT_VIOLATIONDATA_RACE (23 of 46 remaining) [2025-03-15 00:04:27,009 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr5ASSERT_VIOLATIONDATA_RACE (22 of 46 remaining) [2025-03-15 00:04:27,009 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr6ASSERT_VIOLATIONDATA_RACE (21 of 46 remaining) [2025-03-15 00:04:27,009 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr7ASSERT_VIOLATIONDATA_RACE (20 of 46 remaining) [2025-03-15 00:04:27,009 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr8ASSERT_VIOLATIONDATA_RACE (19 of 46 remaining) [2025-03-15 00:04:27,009 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONDATA_RACE (18 of 46 remaining) [2025-03-15 00:04:27,009 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONDATA_RACE (17 of 46 remaining) [2025-03-15 00:04:27,009 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONDATA_RACE (16 of 46 remaining) [2025-03-15 00:04:27,009 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONDATA_RACE (15 of 46 remaining) [2025-03-15 00:04:27,009 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr4ASSERT_VIOLATIONDATA_RACE (14 of 46 remaining) [2025-03-15 00:04:27,009 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr5ASSERT_VIOLATIONDATA_RACE (13 of 46 remaining) [2025-03-15 00:04:27,009 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr6ASSERT_VIOLATIONDATA_RACE (12 of 46 remaining) [2025-03-15 00:04:27,009 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr7ASSERT_VIOLATIONDATA_RACE (11 of 46 remaining) [2025-03-15 00:04:27,009 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr8ASSERT_VIOLATIONDATA_RACE (10 of 46 remaining) [2025-03-15 00:04:27,009 INFO L782 garLoopResultBuilder]: Registering result SAFE for location writerErr0ASSERT_VIOLATIONDATA_RACE (9 of 46 remaining) [2025-03-15 00:04:27,009 INFO L782 garLoopResultBuilder]: Registering result SAFE for location writerErr1ASSERT_VIOLATIONDATA_RACE (8 of 46 remaining) [2025-03-15 00:04:27,009 INFO L782 garLoopResultBuilder]: Registering result SAFE for location writerErr2ASSERT_VIOLATIONDATA_RACE (7 of 46 remaining) [2025-03-15 00:04:27,009 INFO L782 garLoopResultBuilder]: Registering result SAFE for location writerErr3ASSERT_VIOLATIONDATA_RACE (6 of 46 remaining) [2025-03-15 00:04:27,009 INFO L782 garLoopResultBuilder]: Registering result SAFE for location writerErr4ASSERT_VIOLATIONDATA_RACE (5 of 46 remaining) [2025-03-15 00:04:27,009 INFO L782 garLoopResultBuilder]: Registering result SAFE for location writerErr0ASSERT_VIOLATIONDATA_RACE (4 of 46 remaining) [2025-03-15 00:04:27,010 INFO L782 garLoopResultBuilder]: Registering result SAFE for location writerErr1ASSERT_VIOLATIONDATA_RACE (3 of 46 remaining) [2025-03-15 00:04:27,010 INFO L782 garLoopResultBuilder]: Registering result SAFE for location writerErr2ASSERT_VIOLATIONDATA_RACE (2 of 46 remaining) [2025-03-15 00:04:27,010 INFO L782 garLoopResultBuilder]: Registering result SAFE for location writerErr3ASSERT_VIOLATIONDATA_RACE (1 of 46 remaining) [2025-03-15 00:04:27,010 INFO L782 garLoopResultBuilder]: Registering result SAFE for location writerErr4ASSERT_VIOLATIONDATA_RACE (0 of 46 remaining) [2025-03-15 00:04:27,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-15 00:04:27,010 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-03-15 00:04:27,016 INFO L328 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-15 00:04:27,016 INFO L188 ceAbstractionStarter]: Computing trace abstraction results [2025-03-15 00:04:27,023 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 12:04:27 BasicIcfg [2025-03-15 00:04:27,023 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-15 00:04:27,024 INFO L158 Benchmark]: Toolchain (without parser) took 2150.02ms. Allocated memory was 71.3MB in the beginning and 197.1MB in the end (delta: 125.8MB). Free memory was 43.3MB in the beginning and 104.6MB in the end (delta: -61.3MB). Peak memory consumption was 142.9MB. Max. memory is 8.0GB. [2025-03-15 00:04:27,024 INFO L158 Benchmark]: CDTParser took 1.15ms. Allocated memory is still 71.3MB. Free memory is still 36.3MB. There was no memory consumed. Max. memory is 8.0GB. [2025-03-15 00:04:27,024 INFO L158 Benchmark]: CACSL2BoogieTranslator took 287.14ms. Allocated memory is still 71.3MB. Free memory was 43.1MB in the beginning and 23.4MB in the end (delta: 19.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2025-03-15 00:04:27,024 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.00ms. Allocated memory is still 71.3MB. Free memory was 23.4MB in the beginning and 21.5MB in the end (delta: 1.9MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-03-15 00:04:27,024 INFO L158 Benchmark]: Boogie Preprocessor took 23.14ms. Allocated memory is still 71.3MB. Free memory was 21.5MB in the beginning and 20.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 8.0GB. [2025-03-15 00:04:27,025 INFO L158 Benchmark]: RCFGBuilder took 463.14ms. Allocated memory is still 71.3MB. Free memory was 20.3MB in the beginning and 24.3MB in the end (delta: -4.0MB). Peak memory consumption was 7.0MB. Max. memory is 8.0GB. [2025-03-15 00:04:27,025 INFO L158 Benchmark]: TraceAbstraction took 1339.05ms. Allocated memory was 71.3MB in the beginning and 197.1MB in the end (delta: 125.8MB). Free memory was 23.3MB in the beginning and 104.6MB in the end (delta: -81.3MB). Peak memory consumption was 123.2MB. Max. memory is 8.0GB. [2025-03-15 00:04:27,027 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.15ms. Allocated memory is still 71.3MB. Free memory is still 36.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 287.14ms. Allocated memory is still 71.3MB. Free memory was 43.1MB in the beginning and 23.4MB in the end (delta: 19.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 30.00ms. Allocated memory is still 71.3MB. Free memory was 23.4MB in the beginning and 21.5MB in the end (delta: 1.9MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 23.14ms. Allocated memory is still 71.3MB. Free memory was 21.5MB in the beginning and 20.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 463.14ms. Allocated memory is still 71.3MB. Free memory was 20.3MB in the beginning and 24.3MB in the end (delta: -4.0MB). Peak memory consumption was 7.0MB. Max. memory is 8.0GB. * TraceAbstraction took 1339.05ms. Allocated memory was 71.3MB in the beginning and 197.1MB in the end (delta: 125.8MB). Free memory was 23.3MB in the beginning and 104.6MB in the end (delta: -81.3MB). Peak memory consumption was 123.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 710]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 711]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 711]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 727]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 730]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 733]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 736]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 740]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 743]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 706]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 706]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 716]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 719]: 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, 167 locations, 46 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: 1.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 28 IncrementalHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 28 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=284occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 21 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 14 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-15 00:04:27,042 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...