/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf -tc ../../../trunk/examples/toolchains/AutomizerBpl.xml -i ../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/elimination_backoff_stack.line2835.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-5c708e3-m [2022-10-03 18:14:48,244 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-03 18:14:48,247 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-03 18:14:48,316 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-03 18:14:48,317 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-03 18:14:48,320 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-03 18:14:48,338 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-03 18:14:48,340 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-03 18:14:48,342 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-03 18:14:48,347 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-03 18:14:48,348 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-03 18:14:48,349 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-03 18:14:48,349 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-03 18:14:48,351 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-03 18:14:48,352 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-03 18:14:48,355 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-03 18:14:48,356 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-03 18:14:48,356 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-03 18:14:48,359 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-03 18:14:48,364 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-03 18:14:48,365 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-03 18:14:48,381 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-03 18:14:48,383 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-03 18:14:48,384 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-03 18:14:48,391 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-03 18:14:48,391 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-03 18:14:48,391 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-03 18:14:48,393 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-03 18:14:48,393 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-03 18:14:48,394 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-10-03 18:14:48,399 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-03 18:14:48,400 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-03 18:14:48,401 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-03 18:14:48,417 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-10-03 18:14:48,462 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-03 18:14:48,462 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-03 18:14:48,463 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-03 18:14:48,463 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-03 18:14:48,464 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-03 18:14:48,464 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-03 18:14:48,465 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-03 18:14:48,466 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-03 18:14:48,466 INFO L138 SettingsManager]: * Use SBE=true [2022-10-03 18:14:48,466 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-03 18:14:48,467 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-03 18:14:48,467 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-03 18:14:48,467 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-03 18:14:48,467 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-03 18:14:48,467 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-03 18:14:48,468 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-03 18:14:48,468 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-03 18:14:48,468 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-03 18:14:48,468 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-03 18:14:48,468 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-03 18:14:48,468 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-03 18:14:48,468 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-03 18:14:48,469 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-03 18:14:48,469 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-03 18:14:48,469 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-03 18:14:48,469 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-03 18:14:48,469 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-03 18:14:48,470 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-03 18:14:48,470 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-03 18:14:48,470 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-03 18:14:48,470 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-03 18:14:48,470 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-03 18:14:48,470 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-10-03 18:14:48,471 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-03 18:14:48,471 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-03 18:14:48,471 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-10-03 18:14:48,471 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-10-03 18:14:48,471 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-03 18:14:48,471 INFO L138 SettingsManager]: * Independence relation used for POR in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-03 18:14:48,938 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-03 18:14:48,986 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-03 18:14:48,988 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-03 18:14:48,989 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-10-03 18:14:48,990 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-10-03 18:14:48,992 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/elimination_backoff_stack.line2835.bpl [2022-10-03 18:14:48,992 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/elimination_backoff_stack.line2835.bpl' [2022-10-03 18:14:49,448 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-03 18:14:49,450 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2022-10-03 18:14:49,452 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-03 18:14:49,452 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-03 18:14:49,452 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-03 18:14:49,467 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "elimination_backoff_stack.line2835.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 06:14:49" (1/1) ... [2022-10-03 18:14:49,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "elimination_backoff_stack.line2835.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 06:14:49" (1/1) ... [2022-10-03 18:14:49,604 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "elimination_backoff_stack.line2835.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 06:14:49" (1/1) ... [2022-10-03 18:14:49,605 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "elimination_backoff_stack.line2835.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 06:14:49" (1/1) ... [2022-10-03 18:14:49,888 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "elimination_backoff_stack.line2835.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 06:14:49" (1/1) ... [2022-10-03 18:14:49,975 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "elimination_backoff_stack.line2835.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 06:14:49" (1/1) ... [2022-10-03 18:14:50,021 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "elimination_backoff_stack.line2835.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 06:14:49" (1/1) ... [2022-10-03 18:14:50,205 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-03 18:14:50,218 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-03 18:14:50,218 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-03 18:14:50,219 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-03 18:14:50,220 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "elimination_backoff_stack.line2835.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 06:14:49" (1/1) ... [2022-10-03 18:14:50,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-03 18:14:50,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 18:14:50,281 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) [2022-10-03 18:14:50,327 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 [2022-10-03 18:14:50,375 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush2 [2022-10-03 18:14:50,375 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush2 [2022-10-03 18:14:50,375 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush1 [2022-10-03 18:14:50,376 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush1 [2022-10-03 18:14:50,376 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush0 [2022-10-03 18:14:50,376 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush0 [2022-10-03 18:14:50,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-03 18:14:50,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-03 18:14:50,376 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop5 [2022-10-03 18:14:50,377 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop5 [2022-10-03 18:14:50,377 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop6 [2022-10-03 18:14:50,377 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop6 [2022-10-03 18:14:50,377 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop3 [2022-10-03 18:14:50,377 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop3 [2022-10-03 18:14:50,377 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop4 [2022-10-03 18:14:50,377 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop4 [2022-10-03 18:14:50,382 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-03 18:14:51,151 INFO L234 CfgBuilder]: Building ICFG [2022-10-03 18:14:51,161 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-03 18:14:57,866 INFO L275 CfgBuilder]: Performing block encoding [2022-10-03 18:14:57,940 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-03 18:14:57,940 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-03 18:14:57,950 INFO L202 PluginConnector]: Adding new model elimination_backoff_stack.line2835.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 06:14:57 BoogieIcfgContainer [2022-10-03 18:14:57,950 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-03 18:14:57,953 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-03 18:14:57,953 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-03 18:14:57,958 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-03 18:14:57,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "elimination_backoff_stack.line2835.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 06:14:49" (1/2) ... [2022-10-03 18:14:57,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42a4bb46 and model type elimination_backoff_stack.line2835.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 06:14:57, skipping insertion in model container [2022-10-03 18:14:57,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "elimination_backoff_stack.line2835.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 06:14:57" (2/2) ... [2022-10-03 18:14:57,961 INFO L112 eAbstractionObserver]: Analyzing ICFG elimination_backoff_stack.line2835.bpl [2022-10-03 18:14:57,970 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-03 18:14:57,978 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-03 18:14:57,978 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-03 18:14:57,978 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-03 18:14:59,251 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-10-03 18:14:59,417 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-03 18:14:59,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-03 18:14:59,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 18:14:59,423 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-03 18:14:59,435 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-10-03 18:14:59,478 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-03 18:14:59,492 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-10-03 18:14:59,501 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@46c1c23c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-03 18:14:59,501 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-03 18:14:59,648 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-10-03 18:14:59,654 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-03 18:14:59,659 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (1/9) [2022-10-03 18:14:59,839 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-03 18:14:59,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-03 18:14:59,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 18:14:59,841 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-03 18:14:59,842 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2022-10-03 18:14:59,893 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-03 18:14:59,894 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-10-03 18:14:59,895 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@46c1c23c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-03 18:14:59,895 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. Received shutdown request... [2022-10-03 18:24:53,560 WARN L619 AbstractCegarLoop]: Verification canceled: while executing DepthFirstTraversal. [2022-10-03 18:24:53,560 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-10-03 18:24:53,567 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-10-03 18:24:53,567 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-10-03 18:24:53,568 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-03 18:24:53,568 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was TIMEOUT (2/9) [2022-10-03 18:24:53,570 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-10-03 18:24:53,570 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-03 18:24:53,573 INFO L202 PluginConnector]: Adding new model elimination_backoff_stack.line2835.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 06:24:53 BasicIcfg [2022-10-03 18:24:53,574 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-03 18:24:53,575 INFO L158 Benchmark]: Toolchain (without parser) took 604123.93ms. Allocated memory was 294.6MB in the beginning and 8.0GB in the end (delta: 7.7GB). Free memory was 241.5MB in the beginning and 3.8GB in the end (delta: -3.5GB). Peak memory consumption was 5.8GB. Max. memory is 8.0GB. [2022-10-03 18:24:53,575 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.16ms. Allocated memory is still 182.5MB. Free memory is still 134.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-03 18:24:53,575 INFO L158 Benchmark]: Boogie Preprocessor took 753.91ms. Allocated memory is still 294.6MB. Free memory was 241.5MB in the beginning and 234.7MB in the end (delta: 6.8MB). Peak memory consumption was 53.5MB. Max. memory is 8.0GB. [2022-10-03 18:24:53,576 INFO L158 Benchmark]: RCFGBuilder took 7732.74ms. Allocated memory was 294.6MB in the beginning and 589.3MB in the end (delta: 294.6MB). Free memory was 234.7MB in the beginning and 475.1MB in the end (delta: -240.4MB). Peak memory consumption was 183.2MB. Max. memory is 8.0GB. [2022-10-03 18:24:53,577 INFO L158 Benchmark]: TraceAbstraction took 595620.31ms. Allocated memory was 589.3MB in the beginning and 8.0GB in the end (delta: 7.4GB). Free memory was 474.0MB in the beginning and 3.8GB in the end (delta: -3.3GB). Peak memory consumption was 5.8GB. Max. memory is 8.0GB. [2022-10-03 18:24:53,568 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-10-03 18:24:53,587 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.16ms. Allocated memory is still 182.5MB. Free memory is still 134.7MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 753.91ms. Allocated memory is still 294.6MB. Free memory was 241.5MB in the beginning and 234.7MB in the end (delta: 6.8MB). Peak memory consumption was 53.5MB. Max. memory is 8.0GB. * RCFGBuilder took 7732.74ms. Allocated memory was 294.6MB in the beginning and 589.3MB in the end (delta: 294.6MB). Free memory was 234.7MB in the beginning and 475.1MB in the end (delta: -240.4MB). Peak memory consumption was 183.2MB. Max. memory is 8.0GB. * TraceAbstraction took 595620.31ms. Allocated memory was 589.3MB in the beginning and 8.0GB in the end (delta: 7.4GB). Free memory was 474.0MB in the beginning and 3.8GB in the end (delta: -3.3GB). Peak memory consumption was 5.8GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 0, Statistics for Abstraction: - StatisticsResult: Independence relation #1 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 7266428, positive: 7155782, positive conditional: 7155782, positive unconditional: 0, negative: 110646, negative conditional: 110646, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 7266428, positive: 7155782, positive conditional: 7155782, positive unconditional: 0, negative: 110646, negative conditional: 110646, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 7170650, positive: 7155782, positive conditional: 0, positive unconditional: 7155782, negative: 14868, negative conditional: 0, negative unconditional: 14868, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1775080, positive: 1767016, positive conditional: 0, positive unconditional: 1767016, negative: 8064, negative conditional: 0, negative unconditional: 8064, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 7170650, positive: 5388766, positive conditional: 0, positive unconditional: 5388766, negative: 6804, negative conditional: 0, negative unconditional: 6804, unknown: 1775080, unknown conditional: 0, unknown unconditional: 1775080] , Statistics on independence cache: Total cache size (in pairs): 1775080, Positive cache size: 1767016, Positive conditional cache size: 0, Positive unconditional cache size: 1767016, Negative cache size: 8064, Negative conditional cache size: 0, Negative unconditional cache size: 8064, Independence queries for same thread: 95778, Statistics for Abstraction: - TimeoutResultAtElement [Line: 5941]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing DepthFirstTraversal. - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency: ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES with 1 thread instances CFG has 15 procedures, 18415 locations, 9 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 0, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.1s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, 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: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency: ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES with 1 thread instances CFG has 15 procedures, 18415 locations, 9 error locations. Started 1 CEGAR loops. OverallTime: 593.8s, OverallIterations: 0, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 593.7s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, 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: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown [2022-10-03 18:24:53,660 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Forceful destruction successful, exit code 0 [2022-10-03 18:24:53,871 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2022-10-03 18:24:54,076 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 !SESSION 2022-10-03 18:14:45.002 ----------------------------------------------- eclipse.buildId=unknown java.version=11.0.12 java.vendor=Debian BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -ultimatedata ./data -s ../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf -tc ../../../trunk/examples/toolchains/AutomizerBpl.xml -i ../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/elimination_backoff_stack.line2835.bpl Command-line arguments: -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf -tc ../../../trunk/examples/toolchains/AutomizerBpl.xml -i ../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/elimination_backoff_stack.line2835.bpl !ENTRY org.eclipse.osgi 4 0 2022-10-03 18:24:54.276 !MESSAGE Application error !STACK 1 org.eclipse.core.internal.resources.ResourceException(/)[568]: java.io.FileNotFoundException: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c11bf4c31/.metadata/.plugins/org.eclipse.core.resources/.root/1.tree (No such file or directory) at java.base/java.io.FileOutputStream.open0(Native Method) at java.base/java.io.FileOutputStream.open(FileOutputStream.java:298) at java.base/java.io.FileOutputStream.(FileOutputStream.java:237) at java.base/java.io.FileOutputStream.(FileOutputStream.java:187) at org.eclipse.core.internal.localstore.SafeFileOutputStream.(SafeFileOutputStream.java:55) at org.eclipse.core.internal.resources.SaveManager.saveTree(SaveManager.java:1381) at org.eclipse.core.internal.resources.SaveManager.save(SaveManager.java:1168) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2333) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2322) at de.uni_freiburg.informatik.ultimate.core.coreplugin.UltimateCore.start(UltimateCore.java:191) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:401) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:657) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:594) at org.eclipse.equinox.launcher.Main.run(Main.java:1465) at org.eclipse.equinox.launcher.Main.main(Main.java:1438) An error has occurred. See the log file /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c11bf4c31/.metadata/.log.