/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/NewStatesSleepPersistentFixedOrder.epf --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_THREAD_INSTANCE --traceabstraction.maximal.amount.of.steps.the.threads.are.allowed.to.take.successively 1 --traceabstraction.enable.heuristic.with.loops.as.step.type false --traceabstraction.considered.threads.and.their.maximal.amount.of.steps X --traceabstraction.defines.what.statements.are.considered.a.step.in.por LOOP -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/min-fun-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.orders-218013a [2023-05-04 01:11:35,207 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2023-05-04 01:11:35,282 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2023-05-04 01:11:35,309 INFO L113 SettingsManager]: Loading preferences was successful [2023-05-04 01:11:35,309 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-05-04 01:11:35,309 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-05-04 01:11:35,309 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-05-04 01:11:35,310 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-05-04 01:11:35,310 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-05-04 01:11:35,311 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-05-04 01:11:35,311 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-05-04 01:11:35,311 INFO L138 SettingsManager]: * Use SBE=true [2023-05-04 01:11:35,311 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-05-04 01:11:35,312 INFO L138 SettingsManager]: * sizeof long=4 [2023-05-04 01:11:35,312 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-05-04 01:11:35,312 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-05-04 01:11:35,312 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-05-04 01:11:35,312 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-05-04 01:11:35,312 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-05-04 01:11:35,312 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-05-04 01:11:35,312 INFO L138 SettingsManager]: * sizeof long double=12 [2023-05-04 01:11:35,312 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-05-04 01:11:35,313 INFO L138 SettingsManager]: * Use constant arrays=true [2023-05-04 01:11:35,313 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-05-04 01:11:35,313 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-05-04 01:11:35,313 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-05-04 01:11:35,314 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-05-04 01:11:35,314 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-05-04 01:11:35,314 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-04 01:11:35,314 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-05-04 01:11:35,314 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-05-04 01:11:35,314 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-05-04 01:11:35,314 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-05-04 01:11:35,314 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-05-04 01:11:35,315 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-05-04 01:11:35,315 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-05-04 01:11:35,315 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-05-04 01:11:35,315 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-05-04 01:11:35,315 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-05-04 01:11:35,315 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_THREAD_INSTANCE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Maximal amount of steps the threads are allowed to take successively -> 1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Enable heuristic with loops as step type -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Considered threads and their maximal amount of steps -> X Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Defines what statements are considered a step in POR -> LOOP [2023-05-04 01:11:35,539 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-05-04 01:11:35,566 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-05-04 01:11:35,568 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-05-04 01:11:35,569 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-05-04 01:11:35,570 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2023-05-04 01:11:35,571 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/min-fun-alt.wvr.bpl [2023-05-04 01:11:35,572 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/min-fun-alt.wvr.bpl' [2023-05-04 01:11:35,602 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-05-04 01:11:35,603 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-05-04 01:11:35,604 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-05-04 01:11:35,604 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-05-04 01:11:35,604 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-05-04 01:11:35,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "min-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 01:11:35" (1/1) ... [2023-05-04 01:11:35,618 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "min-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 01:11:35" (1/1) ... [2023-05-04 01:11:35,622 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-05-04 01:11:35,623 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-05-04 01:11:35,624 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-05-04 01:11:35,624 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-05-04 01:11:35,624 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-05-04 01:11:35,629 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "min-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 01:11:35" (1/1) ... [2023-05-04 01:11:35,629 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "min-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 01:11:35" (1/1) ... [2023-05-04 01:11:35,630 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "min-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 01:11:35" (1/1) ... [2023-05-04 01:11:35,632 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "min-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 01:11:35" (1/1) ... [2023-05-04 01:11:35,635 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "min-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 01:11:35" (1/1) ... [2023-05-04 01:11:35,638 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "min-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 01:11:35" (1/1) ... [2023-05-04 01:11:35,638 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "min-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 01:11:35" (1/1) ... [2023-05-04 01:11:35,639 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "min-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 01:11:35" (1/1) ... [2023-05-04 01:11:35,643 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-05-04 01:11:35,644 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-05-04 01:11:35,644 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-05-04 01:11:35,644 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-05-04 01:11:35,646 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "min-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 01:11:35" (1/1) ... [2023-05-04 01:11:35,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-04 01:11:35,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 01:11:35,672 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) [2023-05-04 01:11:35,676 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 [2023-05-04 01:11:35,725 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-05-04 01:11:35,725 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-05-04 01:11:35,725 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-05-04 01:11:35,725 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-05-04 01:11:35,726 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-05-04 01:11:35,726 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-05-04 01:11:35,726 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-05-04 01:11:35,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-05-04 01:11:35,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-05-04 01:11:35,727 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2023-05-04 01:11:35,727 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-05-04 01:11:35,728 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-05-04 01:11:35,729 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2023-05-04 01:11:35,766 INFO L235 CfgBuilder]: Building ICFG [2023-05-04 01:11:35,767 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-05-04 01:11:35,860 INFO L276 CfgBuilder]: Performing block encoding [2023-05-04 01:11:35,872 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-05-04 01:11:35,872 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2023-05-04 01:11:35,873 INFO L202 PluginConnector]: Adding new model min-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 01:11:35 BoogieIcfgContainer [2023-05-04 01:11:35,874 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-05-04 01:11:35,875 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-05-04 01:11:35,875 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-05-04 01:11:35,878 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-05-04 01:11:35,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 01:11:35" (1/2) ... [2023-05-04 01:11:35,879 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21a653dc and model type min-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.05 01:11:35, skipping insertion in model container [2023-05-04 01:11:35,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 01:11:35" (2/2) ... [2023-05-04 01:11:35,880 INFO L112 eAbstractionObserver]: Analyzing ICFG min-fun-alt.wvr.bpl [2023-05-04 01:11:35,885 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-05-04 01:11:35,892 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-05-04 01:11:35,893 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-05-04 01:11:35,893 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-05-04 01:11:35,920 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-05-04 01:11:35,977 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 01:11:35,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-04 01:11:36,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 01:11:36,045 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) [2023-05-04 01:11:36,072 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 [2023-05-04 01:11:36,117 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-04 01:11:36,139 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-05-04 01:11:36,148 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;@46af078b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 01:11:36,148 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-05-04 01:11:36,355 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-05-04 01:11:36,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 01:11:36,364 INFO L85 PathProgramCache]: Analyzing trace with hash -820495158, now seen corresponding path program 1 times [2023-05-04 01:11:36,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 01:11:36,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170760620] [2023-05-04 01:11:36,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:11:36,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 01:11:36,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 01:11:38,045 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 01:11:38,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 01:11:38,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170760620] [2023-05-04 01:11:38,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170760620] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 01:11:38,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1800847804] [2023-05-04 01:11:38,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:11:38,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 01:11:38,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 01:11:38,048 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 01:11:38,077 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-05-04 01:11:38,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 01:11:38,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 32 conjunts are in the unsatisfiable core [2023-05-04 01:11:38,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 01:11:39,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-04 01:11:39,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-04 01:11:40,065 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 01:11:40,066 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 18 case distinctions, treesize of input 277 treesize of output 335 [2023-05-04 01:11:43,275 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-05-04 01:12:09,405 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 01:12:09,405 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 01:12:25,340 WARN L233 SmtUtils]: Spent 12.12s on a formula simplification that was a NOOP. DAG size: 1243 (called from [L 353] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-05-04 01:12:25,341 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 01:12:25,343 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 25 select indices, 25 select index equivalence classes, 1 disjoint index pairs (out of 300 index pairs), introduced 25 new quantified variables, introduced 299 case distinctions, treesize of input 1171 treesize of output 3181 [2023-05-04 01:12:41,928 WARN L718 sPolynomialRelations]: Constructing 1024(two to the power of 10 dual juncts. [2023-05-04 01:17:12,964 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2023-05-04 01:19:03,862 WARN L718 sPolynomialRelations]: Constructing 2048(two to the power of 11 dual juncts. [2023-05-04 01:19:10,584 WARN L233 SmtUtils]: Spent 6.58s on a formula simplification. DAG size of input: 671 DAG size of output: 626 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) Received shutdown request... [2023-05-04 01:26:08,874 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-05-04 01:26:08,874 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 [2023-05-04 01:26:08,874 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 [2023-05-04 01:26:08,918 WARN L249 SmtUtils]: Removed 2 from assertion stack [2023-05-04 01:26:08,920 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2023-05-04 01:26:08,938 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-05-04 01:26:09,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-05-04 01:26:09,139 WARN L619 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 31 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 96ms.. [2023-05-04 01:26:09,141 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-05-04 01:26:09,141 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-05-04 01:26:09,141 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-05-04 01:26:09,150 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2023-05-04 01:26:09,153 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-05-04 01:26:09,153 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-05-04 01:26:09,155 INFO L202 PluginConnector]: Adding new model min-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.05 01:26:09 BasicIcfg [2023-05-04 01:26:09,155 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-05-04 01:26:09,159 INFO L158 Benchmark]: Toolchain (without parser) took 873552.63ms. Allocated memory was 182.5MB in the beginning and 985.7MB in the end (delta: 803.2MB). Free memory was 135.7MB in the beginning and 943.0MB in the end (delta: -807.3MB). Peak memory consumption was 589.0MB. Max. memory is 8.0GB. [2023-05-04 01:26:09,159 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.11ms. Allocated memory is still 182.5MB. Free memory was 136.9MB in the beginning and 136.8MB in the end (delta: 150.4kB). There was no memory consumed. Max. memory is 8.0GB. [2023-05-04 01:26:09,161 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.92ms. Allocated memory is still 182.5MB. Free memory was 135.7MB in the beginning and 134.1MB in the end (delta: 1.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-05-04 01:26:09,161 INFO L158 Benchmark]: Boogie Preprocessor took 19.28ms. Allocated memory is still 182.5MB. Free memory was 134.1MB in the beginning and 133.0MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-05-04 01:26:09,162 INFO L158 Benchmark]: RCFGBuilder took 229.39ms. Allocated memory is still 182.5MB. Free memory was 133.0MB in the beginning and 123.3MB in the end (delta: 9.7MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-05-04 01:26:09,162 INFO L158 Benchmark]: TraceAbstraction took 873280.14ms. Allocated memory was 182.5MB in the beginning and 985.7MB in the end (delta: 803.2MB). Free memory was 122.1MB in the beginning and 943.0MB in the end (delta: -820.9MB). Peak memory consumption was 574.3MB. Max. memory is 8.0GB. [2023-05-04 01:26:09,165 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 0.11ms. Allocated memory is still 182.5MB. Free memory was 136.9MB in the beginning and 136.8MB in the end (delta: 150.4kB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 18.92ms. Allocated memory is still 182.5MB. Free memory was 135.7MB in the beginning and 134.1MB in the end (delta: 1.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 19.28ms. Allocated memory is still 182.5MB. Free memory was 134.1MB in the beginning and 133.0MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 229.39ms. Allocated memory is still 182.5MB. Free memory was 133.0MB in the beginning and 123.3MB in the end (delta: 9.7MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 873280.14ms. Allocated memory was 182.5MB in the beginning and 985.7MB in the end (delta: 803.2MB). Free memory was 122.1MB in the beginning and 943.0MB in the end (delta: -820.9MB). Peak memory consumption was 574.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 526, independent: 488, independent conditional: 135, independent unconditional: 353, dependent: 38, dependent conditional: 38, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 488, independent: 488, independent conditional: 135, independent unconditional: 353, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 488, independent: 488, independent conditional: 135, independent unconditional: 353, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 488, independent: 488, independent conditional: 0, independent unconditional: 488, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 488, independent: 488, independent conditional: 0, independent unconditional: 488, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 488, independent: 488, independent conditional: 0, independent unconditional: 488, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 329, independent: 329, independent conditional: 0, independent unconditional: 329, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 329, independent: 325, independent conditional: 0, independent unconditional: 325, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 4, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 4, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 102, independent: 102, independent conditional: 0, independent unconditional: 102, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 488, independent: 159, independent conditional: 0, independent unconditional: 159, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 329, unknown conditional: 0, unknown unconditional: 329] , Statistics on independence cache: Total cache size (in pairs): 329, Positive cache size: 329, Positive conditional cache size: 0, Positive unconditional cache size: 329, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 38 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.2s, Number of persistent set computation: 30, Number of trivial persistent sets: 18, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 353, independent: 353, independent conditional: 0, independent unconditional: 353, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 526, independent: 488, independent conditional: 135, independent unconditional: 353, dependent: 38, dependent conditional: 38, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 488, independent: 488, independent conditional: 135, independent unconditional: 353, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 488, independent: 488, independent conditional: 135, independent unconditional: 353, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 488, independent: 488, independent conditional: 0, independent unconditional: 488, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 488, independent: 488, independent conditional: 0, independent unconditional: 488, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 488, independent: 488, independent conditional: 0, independent unconditional: 488, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 329, independent: 329, independent conditional: 0, independent unconditional: 329, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 329, independent: 325, independent conditional: 0, independent unconditional: 325, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 4, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 4, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 102, independent: 102, independent conditional: 0, independent unconditional: 102, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 488, independent: 159, independent conditional: 0, independent unconditional: 159, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 329, unknown conditional: 0, unknown unconditional: 329] , Statistics on independence cache: Total cache size (in pairs): 329, Positive cache size: 329, Positive conditional cache size: 0, Positive unconditional cache size: 329, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 38 - TimeoutResultAtElement [Line: 65]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 31 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 96ms.. - TimeoutResultAtElement [Line: 58]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 31 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 96ms.. - TimeoutResultAtElement [Line: 59]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 31 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 96ms.. - TimeoutResultAtElement [Line: 58]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 31 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 96ms.. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 42 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 873.0s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, 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