/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.line12683.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-5c708e3-m [2022-10-03 17:22:04,725 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-03 17:22:04,727 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-03 17:22:04,776 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-03 17:22:04,777 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-03 17:22:04,780 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-03 17:22:04,784 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-03 17:22:04,788 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-03 17:22:04,789 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-03 17:22:04,792 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-03 17:22:04,792 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-03 17:22:04,793 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-03 17:22:04,793 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-03 17:22:04,794 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-03 17:22:04,795 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-03 17:22:04,796 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-03 17:22:04,796 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-03 17:22:04,797 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-03 17:22:04,798 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-03 17:22:04,800 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-03 17:22:04,801 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-03 17:22:04,808 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-03 17:22:04,810 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-03 17:22:04,812 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-03 17:22:04,821 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-03 17:22:04,831 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-03 17:22:04,831 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-03 17:22:04,832 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-03 17:22:04,833 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-10-03 17:22:04,873 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-03 17:22:04,873 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-03 17:22:04,874 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-03 17:22:04,874 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-03 17:22:04,875 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-03 17:22:04,875 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-03 17:22:04,876 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-03 17:22:04,876 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-03 17:22:04,876 INFO L138 SettingsManager]: * Use SBE=true [2022-10-03 17:22:04,876 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-03 17:22:04,877 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-03 17:22:04,877 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-03 17:22:04,877 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-03 17:22:04,877 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-03 17:22:04,877 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-03 17:22:04,877 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-03 17:22:04,878 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-03 17:22:04,878 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-03 17:22:04,878 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-03 17:22:04,878 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-03 17:22:04,878 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-03 17:22:04,878 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-03 17:22:04,879 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-03 17:22:04,879 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-03 17:22:04,879 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-03 17:22:04,879 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-03 17:22:04,879 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-03 17:22:04,879 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-03 17:22:04,879 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-03 17:22:04,879 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-03 17:22:04,880 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-03 17:22:04,880 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-03 17:22:04,880 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-10-03 17:22:04,880 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-03 17:22:04,880 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-03 17:22:04,880 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-10-03 17:22:04,880 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-10-03 17:22:04,881 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-03 17:22:04,881 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-03 17:22:05,113 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-03 17:22:05,136 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-03 17:22:05,138 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-03 17:22:05,139 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-10-03 17:22:05,141 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-10-03 17:22:05,142 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/elimination_backoff_stack.line12683.bpl [2022-10-03 17:22:05,143 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/elimination_backoff_stack.line12683.bpl' [2022-10-03 17:22:05,427 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-03 17:22:05,428 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2022-10-03 17:22:05,430 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-03 17:22:05,430 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-03 17:22:05,430 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-03 17:22:05,443 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "elimination_backoff_stack.line12683.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 05:22:05" (1/1) ... [2022-10-03 17:22:05,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "elimination_backoff_stack.line12683.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 05:22:05" (1/1) ... [2022-10-03 17:22:05,558 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "elimination_backoff_stack.line12683.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 05:22:05" (1/1) ... [2022-10-03 17:22:05,559 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "elimination_backoff_stack.line12683.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 05:22:05" (1/1) ... [2022-10-03 17:22:05,735 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "elimination_backoff_stack.line12683.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 05:22:05" (1/1) ... [2022-10-03 17:22:05,758 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "elimination_backoff_stack.line12683.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 05:22:05" (1/1) ... [2022-10-03 17:22:05,793 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "elimination_backoff_stack.line12683.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 05:22:05" (1/1) ... [2022-10-03 17:22:05,864 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-03 17:22:05,866 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-03 17:22:05,867 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-03 17:22:05,867 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-03 17:22:05,868 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "elimination_backoff_stack.line12683.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 05:22:05" (1/1) ... [2022-10-03 17:22:05,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-03 17:22:05,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 17:22:05,903 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 17:22:05,930 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 17:22:05,951 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush2 [2022-10-03 17:22:05,951 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush2 [2022-10-03 17:22:05,951 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush1 [2022-10-03 17:22:05,952 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush1 [2022-10-03 17:22:05,952 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush0 [2022-10-03 17:22:05,952 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush0 [2022-10-03 17:22:05,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-03 17:22:05,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-03 17:22:05,952 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop5 [2022-10-03 17:22:05,952 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop5 [2022-10-03 17:22:05,953 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop6 [2022-10-03 17:22:05,953 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop6 [2022-10-03 17:22:05,953 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop3 [2022-10-03 17:22:05,953 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop3 [2022-10-03 17:22:05,953 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop4 [2022-10-03 17:22:05,953 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop4 [2022-10-03 17:22:05,958 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 17:22:06,489 INFO L234 CfgBuilder]: Building ICFG [2022-10-03 17:22:06,490 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-03 17:22:11,725 INFO L275 CfgBuilder]: Performing block encoding [2022-10-03 17:22:11,786 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-03 17:22:11,786 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-03 17:22:11,796 INFO L202 PluginConnector]: Adding new model elimination_backoff_stack.line12683.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 05:22:11 BoogieIcfgContainer [2022-10-03 17:22:11,797 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-03 17:22:11,799 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-03 17:22:11,799 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-03 17:22:11,803 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-03 17:22:11,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "elimination_backoff_stack.line12683.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 05:22:05" (1/2) ... [2022-10-03 17:22:11,804 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@251b50f0 and model type elimination_backoff_stack.line12683.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 05:22:11, skipping insertion in model container [2022-10-03 17:22:11,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "elimination_backoff_stack.line12683.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 05:22:11" (2/2) ... [2022-10-03 17:22:11,805 INFO L112 eAbstractionObserver]: Analyzing ICFG elimination_backoff_stack.line12683.bpl [2022-10-03 17:22:11,812 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-03 17:22:11,820 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-03 17:22:11,821 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-03 17:22:11,821 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-03 17:22:13,130 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-10-03 17:22:13,293 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-03 17:22:13,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-03 17:22:13,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 17:22:13,299 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 17:22:13,307 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 17:22:13,342 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-03 17:22:13,349 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == instrPop4Err0ASSERT_VIOLATIONASSERT ======== [2022-10-03 17:22:13,355 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;@51c0ebf6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-03 17:22:13,355 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-03 17:22:13,358 WARN L124 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2022-10-03 17:22:13,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location instrPop4Err0ASSERT_VIOLATIONASSERT (0 of 1 remaining) [2022-10-03 17:22:13,364 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-03 17:22:13,366 INFO L307 ceAbstractionStarter]: Result for error location instrPop4Err0ASSERT_VIOLATIONASSERT was SAFE (1/9) [2022-10-03 17:22:13,468 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-03 17:22:13,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-03 17:22:13,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 17:22:13,472 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 17:22:13,473 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 17:22:13,514 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-03 17:22:13,514 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-10-03 17:22:13,515 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;@51c0ebf6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-03 17:22:13,516 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-03 17:22:13,590 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-10-03 17:22:13,591 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-03 17:22:13,592 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (2/9) [2022-10-03 17:22:13,684 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-03 17:22:13,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-03 17:22:13,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 17:22:13,687 INFO L229 MonitoredProcess]: Starting monitored process 4 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 17:22:13,694 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process [2022-10-03 17:22:13,703 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-03 17:22:13,703 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-10-03 17:22:13,704 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;@51c0ebf6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-03 17:22:13,704 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations.