/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/figure1-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.orders-32214ab [2023-05-19 20:22:41,310 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2023-05-19 20:22:41,377 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2023-05-19 20:22:41,403 INFO L113 SettingsManager]: Loading preferences was successful [2023-05-19 20:22:41,403 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-05-19 20:22:41,404 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-05-19 20:22:41,404 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-05-19 20:22:41,404 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-05-19 20:22:41,404 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-05-19 20:22:41,404 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-05-19 20:22:41,405 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-05-19 20:22:41,405 INFO L138 SettingsManager]: * Use SBE=true [2023-05-19 20:22:41,405 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-05-19 20:22:41,405 INFO L138 SettingsManager]: * sizeof long=4 [2023-05-19 20:22:41,405 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-05-19 20:22:41,405 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-05-19 20:22:41,405 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-05-19 20:22:41,405 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-05-19 20:22:41,405 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-05-19 20:22:41,406 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-05-19 20:22:41,406 INFO L138 SettingsManager]: * sizeof long double=12 [2023-05-19 20:22:41,406 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-05-19 20:22:41,406 INFO L138 SettingsManager]: * Use constant arrays=true [2023-05-19 20:22:41,406 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-05-19 20:22:41,406 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-05-19 20:22:41,406 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-05-19 20:22:41,406 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-05-19 20:22:41,406 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-05-19 20:22:41,406 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-19 20:22:41,406 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-05-19 20:22:41,406 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-05-19 20:22:41,407 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-05-19 20:22:41,407 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-05-19 20:22:41,407 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-05-19 20:22:41,407 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-05-19 20:22:41,407 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-05-19 20:22:41,407 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-05-19 20:22:41,407 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-05-19 20:22:41,407 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-05-19 20:22:41,407 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_THREAD_INSTANCE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Maximal amount of steps the threads are allowed to take successively -> 1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Enable heuristic with loops as step type -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Considered threads and their maximal amount of steps -> X Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Defines what statements are considered a step in POR -> LOOP [2023-05-19 20:22:41,646 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-05-19 20:22:41,667 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-05-19 20:22:41,671 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-05-19 20:22:41,672 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-05-19 20:22:41,673 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2023-05-19 20:22:41,676 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/figure1-alt.wvr.bpl [2023-05-19 20:22:41,676 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/figure1-alt.wvr.bpl' [2023-05-19 20:22:41,692 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-05-19 20:22:41,693 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-05-19 20:22:41,694 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-05-19 20:22:41,694 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-05-19 20:22:41,694 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-05-19 20:22:41,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "figure1-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 08:22:41" (1/1) ... [2023-05-19 20:22:41,708 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "figure1-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 08:22:41" (1/1) ... [2023-05-19 20:22:41,713 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-05-19 20:22:41,714 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-05-19 20:22:41,717 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-05-19 20:22:41,717 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-05-19 20:22:41,717 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-05-19 20:22:41,723 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "figure1-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 08:22:41" (1/1) ... [2023-05-19 20:22:41,724 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "figure1-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 08:22:41" (1/1) ... [2023-05-19 20:22:41,724 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "figure1-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 08:22:41" (1/1) ... [2023-05-19 20:22:41,724 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "figure1-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 08:22:41" (1/1) ... [2023-05-19 20:22:41,726 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "figure1-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 08:22:41" (1/1) ... [2023-05-19 20:22:41,728 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "figure1-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 08:22:41" (1/1) ... [2023-05-19 20:22:41,729 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "figure1-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 08:22:41" (1/1) ... [2023-05-19 20:22:41,729 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "figure1-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 08:22:41" (1/1) ... [2023-05-19 20:22:41,730 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-05-19 20:22:41,731 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-05-19 20:22:41,731 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-05-19 20:22:41,731 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-05-19 20:22:41,744 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "figure1-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 08:22:41" (1/1) ... [2023-05-19 20:22:41,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-19 20:22:41,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 20:22:41,767 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) [2023-05-19 20:22:41,782 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 [2023-05-19 20:22:41,796 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-05-19 20:22:41,797 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-05-19 20:22:41,797 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-05-19 20:22:41,797 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-05-19 20:22:41,797 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-05-19 20:22:41,797 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-05-19 20:22:41,797 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-05-19 20:22:41,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-05-19 20:22:41,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-05-19 20:22:41,798 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2023-05-19 20:22:41,832 INFO L235 CfgBuilder]: Building ICFG [2023-05-19 20:22:41,833 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-05-19 20:22:41,902 INFO L276 CfgBuilder]: Performing block encoding [2023-05-19 20:22:41,935 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-05-19 20:22:41,935 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2023-05-19 20:22:41,937 INFO L202 PluginConnector]: Adding new model figure1-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.05 08:22:41 BoogieIcfgContainer [2023-05-19 20:22:41,937 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-05-19 20:22:41,939 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-05-19 20:22:41,939 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-05-19 20:22:41,944 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-05-19 20:22:41,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "figure1-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 08:22:41" (1/2) ... [2023-05-19 20:22:41,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@245744f3 and model type figure1-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.05 08:22:41, skipping insertion in model container [2023-05-19 20:22:41,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "figure1-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.05 08:22:41" (2/2) ... [2023-05-19 20:22:41,961 INFO L112 eAbstractionObserver]: Analyzing ICFG figure1-alt.wvr.bpl [2023-05-19 20:22:41,966 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-05-19 20:22:41,972 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-05-19 20:22:41,972 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-05-19 20:22:41,972 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-05-19 20:22:42,008 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-05-19 20:22:42,050 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-19 20:22:42,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-19 20:22:42,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 20:22:42,052 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) [2023-05-19 20:22:42,058 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 [2023-05-19 20:22:42,091 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-19 20:22:42,104 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-05-19 20:22:42,109 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;@752cf967, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-19 20:22:42,109 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-05-19 20:22:42,211 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-19 20:22:42,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 20:22:42,214 INFO L85 PathProgramCache]: Analyzing trace with hash 501563622, now seen corresponding path program 1 times [2023-05-19 20:22:42,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 20:22:42,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576368395] [2023-05-19 20:22:42,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 20:22:42,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 20:22:42,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 20:22:42,751 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-19 20:22:42,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 20:22:42,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576368395] [2023-05-19 20:22:42,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576368395] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-19 20:22:42,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1476126639] [2023-05-19 20:22:42,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 20:22:42,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 20:22:42,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 20:22:42,759 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) [2023-05-19 20:22:42,762 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-05-19 20:22:42,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 20:22:42,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 21 conjunts are in the unsatisfiable core [2023-05-19 20:22:42,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-19 20:22:43,163 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 20:22:43,164 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-19 20:22:43,431 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-19 20:22:43,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1476126639] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-19 20:22:43,432 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-19 20:22:43,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 10] total 24 [2023-05-19 20:22:43,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654227782] [2023-05-19 20:22:43,441 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-19 20:22:43,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-05-19 20:22:43,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 20:22:43,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-05-19 20:22:43,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=497, Unknown=0, NotChecked=0, Total=600 [2023-05-19 20:22:43,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 20:22:43,470 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 20:22:43,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 1.92) internal successors, (48), 24 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-19 20:22:43,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 20:22:44,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-05-19 20:22:44,313 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-05-19 20:22:44,498 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 [2023-05-19 20:22:44,498 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-19 20:22:44,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 20:22:44,499 INFO L85 PathProgramCache]: Analyzing trace with hash 43170468, now seen corresponding path program 2 times [2023-05-19 20:22:44,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 20:22:44,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076432381] [2023-05-19 20:22:44,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 20:22:44,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 20:22:44,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 20:22:44,759 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 20:22:44,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 20:22:44,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076432381] [2023-05-19 20:22:44,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076432381] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-19 20:22:44,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [856682214] [2023-05-19 20:22:44,760 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-05-19 20:22:44,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 20:22:44,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 20:22:44,786 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-19 20:22:44,839 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-05-19 20:22:44,840 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-19 20:22:44,840 WARN L261 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 25 conjunts are in the unsatisfiable core [2023-05-19 20:22:44,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-19 20:22:44,842 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-05-19 20:22:45,108 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 20:22:45,108 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-19 20:22:45,298 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-19 20:22:45,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [856682214] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-19 20:22:45,299 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-19 20:22:45,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 10] total 29 [2023-05-19 20:22:45,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551645097] [2023-05-19 20:22:45,300 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-19 20:22:45,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-05-19 20:22:45,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 20:22:45,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-05-19 20:22:45,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=761, Unknown=0, NotChecked=0, Total=870 [2023-05-19 20:22:45,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 20:22:45,303 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 20:22:45,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 2.066666666666667) internal successors, (62), 29 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-19 20:22:45,304 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2023-05-19 20:22:45,304 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 20:22:47,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-05-19 20:22:47,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2023-05-19 20:22:47,030 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-05-19 20:22:47,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 20:22:47,225 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-19 20:22:47,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 20:22:47,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1105123246, now seen corresponding path program 3 times [2023-05-19 20:22:47,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 20:22:47,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949984154] [2023-05-19 20:22:47,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 20:22:47,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 20:22:47,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 20:22:47,419 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-05-19 20:22:47,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 20:22:47,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949984154] [2023-05-19 20:22:47,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949984154] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-19 20:22:47,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [94832361] [2023-05-19 20:22:47,423 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-05-19 20:22:47,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 20:22:47,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 20:22:47,425 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-19 20:22:47,426 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-05-19 20:22:47,450 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-05-19 20:22:47,450 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-19 20:22:47,451 WARN L261 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 37 conjunts are in the unsatisfiable core [2023-05-19 20:22:47,452 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-19 20:22:47,765 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 20:22:47,765 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-19 20:22:47,973 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-05-19 20:22:47,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [94832361] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-19 20:22:47,978 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-19 20:22:47,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 15, 10] total 28 [2023-05-19 20:22:47,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808400011] [2023-05-19 20:22:47,979 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-19 20:22:47,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-05-19 20:22:47,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 20:22:47,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-05-19 20:22:47,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=691, Unknown=0, NotChecked=0, Total=812 [2023-05-19 20:22:47,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 20:22:47,980 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 20:22:47,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 2.103448275862069) internal successors, (61), 28 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-19 20:22:47,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2023-05-19 20:22:47,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2023-05-19 20:22:47,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 20:22:48,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-05-19 20:22:48,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2023-05-19 20:22:48,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-05-19 20:22:48,773 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-05-19 20:22:48,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 20:22:48,947 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-19 20:22:48,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 20:22:48,947 INFO L85 PathProgramCache]: Analyzing trace with hash 162213684, now seen corresponding path program 4 times [2023-05-19 20:22:48,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 20:22:48,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890632205] [2023-05-19 20:22:48,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 20:22:48,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 20:22:48,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 20:22:49,219 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-05-19 20:22:49,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 20:22:49,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890632205] [2023-05-19 20:22:49,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890632205] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-19 20:22:49,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1005157208] [2023-05-19 20:22:49,220 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-05-19 20:22:49,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 20:22:49,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 20:22:49,228 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-19 20:22:49,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-05-19 20:22:49,259 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-05-19 20:22:49,260 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-19 20:22:49,261 WARN L261 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 49 conjunts are in the unsatisfiable core [2023-05-19 20:22:49,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-19 20:22:49,681 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 20:22:49,681 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-19 20:22:49,857 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 1 proven. 41 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-05-19 20:22:49,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1005157208] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-19 20:22:49,857 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-19 20:22:49,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 18, 10] total 30 [2023-05-19 20:22:49,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106251384] [2023-05-19 20:22:49,858 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-19 20:22:49,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-05-19 20:22:49,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 20:22:49,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-05-19 20:22:49,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=817, Unknown=0, NotChecked=0, Total=930 [2023-05-19 20:22:49,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 20:22:49,859 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 20:22:49,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 2.2580645161290325) internal successors, (70), 30 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-19 20:22:49,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2023-05-19 20:22:49,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2023-05-19 20:22:49,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2023-05-19 20:22:49,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 20:22:52,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-05-19 20:22:52,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2023-05-19 20:22:52,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2023-05-19 20:22:52,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2023-05-19 20:22:52,974 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2023-05-19 20:22:52,975 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-05-19 20:22:52,975 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-05-19 20:22:52,990 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-05-19 20:22:53,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 20:22:53,179 INFO L444 BasicCegarLoop]: Path program histogram: [4] [2023-05-19 20:22:53,183 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-05-19 20:22:53,184 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-05-19 20:22:53,186 INFO L202 PluginConnector]: Adding new model figure1-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.05 08:22:53 BasicIcfg [2023-05-19 20:22:53,186 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-05-19 20:22:53,186 INFO L158 Benchmark]: Toolchain (without parser) took 11493.19ms. Allocated memory was 217.1MB in the beginning and 351.3MB in the end (delta: 134.2MB). Free memory was 170.7MB in the beginning and 125.4MB in the end (delta: 45.4MB). Peak memory consumption was 180.6MB. Max. memory is 8.0GB. [2023-05-19 20:22:53,186 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.11ms. Allocated memory is still 217.1MB. Free memory is still 171.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-05-19 20:22:53,186 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.78ms. Allocated memory is still 217.1MB. Free memory was 170.7MB in the beginning and 169.2MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-05-19 20:22:53,189 INFO L158 Benchmark]: Boogie Preprocessor took 13.28ms. Allocated memory is still 217.1MB. Free memory was 169.2MB in the beginning and 168.2MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-05-19 20:22:53,189 INFO L158 Benchmark]: RCFGBuilder took 206.19ms. Allocated memory is still 217.1MB. Free memory was 168.1MB in the beginning and 189.2MB in the end (delta: -21.1MB). Peak memory consumption was 16.4MB. Max. memory is 8.0GB. [2023-05-19 20:22:53,190 INFO L158 Benchmark]: TraceAbstraction took 11246.94ms. Allocated memory was 217.1MB in the beginning and 351.3MB in the end (delta: 134.2MB). Free memory was 187.9MB in the beginning and 125.4MB in the end (delta: 62.5MB). Peak memory consumption was 196.7MB. Max. memory is 8.0GB. [2023-05-19 20:22:53,191 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 217.1MB. Free memory is still 171.9MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 20.78ms. Allocated memory is still 217.1MB. Free memory was 170.7MB in the beginning and 169.2MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 13.28ms. Allocated memory is still 217.1MB. Free memory was 169.2MB in the beginning and 168.2MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 206.19ms. Allocated memory is still 217.1MB. Free memory was 168.1MB in the beginning and 189.2MB in the end (delta: -21.1MB). Peak memory consumption was 16.4MB. Max. memory is 8.0GB. * TraceAbstraction took 11246.94ms. Allocated memory was 217.1MB in the beginning and 351.3MB in the end (delta: 134.2MB). Free memory was 187.9MB in the beginning and 125.4MB in the end (delta: 62.5MB). Peak memory consumption was 196.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 648, independent: 445, independent conditional: 319, independent unconditional: 126, dependent: 203, dependent conditional: 202, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 451, independent: 445, independent conditional: 319, independent unconditional: 126, dependent: 6, dependent conditional: 5, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 451, independent: 445, independent conditional: 319, independent unconditional: 126, dependent: 6, dependent conditional: 5, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 474, independent: 445, independent conditional: 5, independent unconditional: 440, dependent: 29, dependent conditional: 18, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 474, independent: 445, independent conditional: 5, independent unconditional: 440, dependent: 29, dependent conditional: 18, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 474, independent: 445, independent conditional: 5, independent unconditional: 440, dependent: 29, dependent conditional: 18, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 130, independent: 120, independent conditional: 5, independent unconditional: 115, dependent: 10, dependent conditional: 9, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 130, independent: 113, independent conditional: 0, independent unconditional: 113, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 17, independent: 7, independent conditional: 5, independent unconditional: 2, dependent: 10, dependent conditional: 9, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 17, independent: 7, independent conditional: 5, independent unconditional: 2, dependent: 10, dependent conditional: 9, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 102, independent: 62, independent conditional: 13, independent unconditional: 49, dependent: 41, dependent conditional: 32, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 474, independent: 325, independent conditional: 0, independent unconditional: 325, dependent: 19, dependent conditional: 9, dependent unconditional: 10, unknown: 130, unknown conditional: 14, unknown unconditional: 116] , Statistics on independence cache: Total cache size (in pairs): 130, Positive cache size: 120, Positive conditional cache size: 5, Positive unconditional cache size: 115, Negative cache size: 10, Negative conditional cache size: 9, Negative unconditional cache size: 1, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 4, Independence queries for same thread: 197 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.1s, Number of persistent set computation: 45, Number of trivial persistent sets: 34, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 127, independent: 126, independent conditional: 0, independent unconditional: 126, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 648, independent: 445, independent conditional: 319, independent unconditional: 126, dependent: 203, dependent conditional: 202, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 451, independent: 445, independent conditional: 319, independent unconditional: 126, dependent: 6, dependent conditional: 5, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 451, independent: 445, independent conditional: 319, independent unconditional: 126, dependent: 6, dependent conditional: 5, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 474, independent: 445, independent conditional: 5, independent unconditional: 440, dependent: 29, dependent conditional: 18, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 474, independent: 445, independent conditional: 5, independent unconditional: 440, dependent: 29, dependent conditional: 18, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 474, independent: 445, independent conditional: 5, independent unconditional: 440, dependent: 29, dependent conditional: 18, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 130, independent: 120, independent conditional: 5, independent unconditional: 115, dependent: 10, dependent conditional: 9, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 130, independent: 113, independent conditional: 0, independent unconditional: 113, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 17, independent: 7, independent conditional: 5, independent unconditional: 2, dependent: 10, dependent conditional: 9, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 17, independent: 7, independent conditional: 5, independent unconditional: 2, dependent: 10, dependent conditional: 9, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 102, independent: 62, independent conditional: 13, independent unconditional: 49, dependent: 41, dependent conditional: 32, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 474, independent: 325, independent conditional: 0, independent unconditional: 325, dependent: 19, dependent conditional: 9, dependent unconditional: 10, unknown: 130, unknown conditional: 14, unknown unconditional: 116] , Statistics on independence cache: Total cache size (in pairs): 130, Positive cache size: 120, Positive conditional cache size: 5, Positive unconditional cache size: 115, Negative cache size: 10, Negative conditional cache size: 9, Negative unconditional cache size: 1, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 4, Independence queries for same thread: 197 - PositiveResult [Line: 51]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 32 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 11.1s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 4, EmptinessCheckTime: 6.5s, 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: 223, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 216 NumberOfCodeBlocks, 216 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 312 ConstructedInterpolants, 0 QuantifiedInterpolants, 3936 SizeOfPredicates, 36 NumberOfNonLiveVariables, 240 ConjunctsInSsa, 132 ConjunctsInUnsatCore, 12 InterpolantComputations, 0 PerfectInterpolantSequences, 51/300 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-05-19 20:22:53,217 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 [2023-05-19 20:22:53,433 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...