/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -s ../benchexec/../../../trunk/examples/settings/default/gemcutter/svcomp-Reach-32bit-GemCutter_Default.epf --traceabstraction.commutativity.condition.synthesis NECESSARY_AND_SUFFICIENT -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/simple-queue.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-dev-1c4755c-m [2024-12-17 01:03:39,271 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-17 01:03:39,318 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../benchexec/../../../trunk/examples/settings/default/gemcutter/svcomp-Reach-32bit-GemCutter_Default.epf [2024-12-17 01:03:39,322 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-17 01:03:39,322 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-17 01:03:39,343 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-17 01:03:39,344 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-17 01:03:39,344 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-17 01:03:39,344 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-17 01:03:39,344 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-17 01:03:39,344 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-17 01:03:39,344 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-17 01:03:39,344 INFO L153 SettingsManager]: * Use SBE=true [2024-12-17 01:03:39,345 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-17 01:03:39,345 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-17 01:03:39,345 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-17 01:03:39,345 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-17 01:03:39,345 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-17 01:03:39,345 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-17 01:03:39,345 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-17 01:03:39,345 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-17 01:03:39,347 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-17 01:03:39,347 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-17 01:03:39,347 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-17 01:03:39,347 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-17 01:03:39,347 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-17 01:03:39,347 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-17 01:03:39,347 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-17 01:03:39,347 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-17 01:03:39,347 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-17 01:03:39,347 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-12-17 01:03:39,348 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-17 01:03:39,348 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-17 01:03:39,348 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-17 01:03:39,348 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2024-12-17 01:03:39,348 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-17 01:03:39,348 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-17 01:03:39,348 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-12-17 01:03:39,348 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-17 01:03:39,348 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-17 01:03:39,348 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-12-17 01:03:39,348 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-12-17 01:03:39,348 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-12-17 01:03:39,348 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> NECESSARY_AND_SUFFICIENT [2024-12-17 01:03:39,571 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-17 01:03:39,577 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-17 01:03:39,579 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-17 01:03:39,580 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2024-12-17 01:03:39,581 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2024-12-17 01:03:39,582 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/simple-queue.wvr.bpl [2024-12-17 01:03:39,582 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/simple-queue.wvr.bpl' [2024-12-17 01:03:39,601 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-17 01:03:39,602 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-12-17 01:03:39,602 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-17 01:03:39,602 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-17 01:03:39,603 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-17 01:03:39,609 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "simple-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.12 01:03:39" (1/1) ... [2024-12-17 01:03:39,614 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "simple-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.12 01:03:39" (1/1) ... [2024-12-17 01:03:39,619 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-12-17 01:03:39,620 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-17 01:03:39,621 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-17 01:03:39,621 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-17 01:03:39,621 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-17 01:03:39,625 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "simple-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.12 01:03:39" (1/1) ... [2024-12-17 01:03:39,625 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "simple-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.12 01:03:39" (1/1) ... [2024-12-17 01:03:39,626 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "simple-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.12 01:03:39" (1/1) ... [2024-12-17 01:03:39,626 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "simple-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.12 01:03:39" (1/1) ... [2024-12-17 01:03:39,627 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "simple-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.12 01:03:39" (1/1) ... [2024-12-17 01:03:39,627 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "simple-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.12 01:03:39" (1/1) ... [2024-12-17 01:03:39,628 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "simple-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.12 01:03:39" (1/1) ... [2024-12-17 01:03:39,629 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "simple-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.12 01:03:39" (1/1) ... [2024-12-17 01:03:39,630 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "simple-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.12 01:03:39" (1/1) ... [2024-12-17 01:03:39,630 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-17 01:03:39,631 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-17 01:03:39,631 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-17 01:03:39,631 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-17 01:03:39,632 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "simple-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.12 01:03:39" (1/1) ... [2024-12-17 01:03:39,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-12-17 01:03:39,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 01:03:39,656 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-12-17 01:03:39,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-12-17 01:03:39,679 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2024-12-17 01:03:39,680 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-12-17 01:03:39,680 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-12-17 01:03:39,680 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2024-12-17 01:03:39,680 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-12-17 01:03:39,680 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-12-17 01:03:39,680 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2024-12-17 01:03:39,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-17 01:03:39,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-17 01:03:39,681 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-17 01:03:39,710 INFO L234 CfgBuilder]: Building ICFG [2024-12-17 01:03:39,712 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-17 01:03:39,765 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-17 01:03:39,765 INFO L283 CfgBuilder]: Performing block encoding [2024-12-17 01:03:39,787 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-17 01:03:39,787 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-17 01:03:39,788 INFO L201 PluginConnector]: Adding new model simple-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 01:03:39 BoogieIcfgContainer [2024-12-17 01:03:39,788 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-17 01:03:39,791 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-17 01:03:39,791 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-17 01:03:39,795 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-17 01:03:39,795 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "simple-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.12 01:03:39" (1/2) ... [2024-12-17 01:03:39,796 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bd0b66a and model type simple-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 01:03:39, skipping insertion in model container [2024-12-17 01:03:39,796 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "simple-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 01:03:39" (2/2) ... [2024-12-17 01:03:39,797 INFO L128 eAbstractionObserver]: Analyzing ICFG simple-queue.wvr.bpl [2024-12-17 01:03:39,809 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-17 01:03:39,812 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG simple-queue.wvr.bpl that has 3 procedures, 13 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-12-17 01:03:39,812 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-17 01:03:39,845 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-12-17 01:03:39,891 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-17 01:03:39,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-12-17 01:03:39,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 01:03:39,895 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-12-17 01:03:39,896 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-12-17 01:03:39,932 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-12-17 01:03:39,948 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-12-17 01:03:39,955 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@52209be8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-17 01:03:39,955 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-12-17 01:03:40,078 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-12-17 01:03:40,079 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 01:03:40,079 INFO L139 ounterexampleChecker]: Examining path program with hash -376467623, occurence #1 [2024-12-17 01:03:40,079 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 01:03:40,079 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 01:03:40,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 01:03:40,084 INFO L85 PathProgramCache]: Analyzing trace with hash 333051769, now seen corresponding path program 1 times [2024-12-17 01:03:40,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 01:03:40,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196145714] [2024-12-17 01:03:40,090 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 01:03:40,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 01:03:40,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 01:03:40,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-17 01:03:40,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 01:03:40,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196145714] [2024-12-17 01:03:40,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196145714] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 01:03:40,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 01:03:40,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-17 01:03:40,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739163051] [2024-12-17 01:03:40,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 01:03:40,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-17 01:03:40,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 01:03:40,188 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-17 01:03:40,188 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-17 01:03:40,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 01:03:40,189 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 01:03:40,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 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) [2024-12-17 01:03:40,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 01:03:40,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 01:03:40,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-17 01:03:40,213 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-12-17 01:03:40,214 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 01:03:40,214 INFO L139 ounterexampleChecker]: Examining path program with hash -376467623, occurence #2 [2024-12-17 01:03:40,214 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-17 01:03:40,214 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2024-12-17 01:03:40,214 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 01:03:40,214 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2024-12-17 01:03:40,215 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 01:03:40,215 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-17 01:03:40,215 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 01:03:40,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 01:03:40,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1735405198, now seen corresponding path program 1 times [2024-12-17 01:03:40,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 01:03:40,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60686797] [2024-12-17 01:03:40,215 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 01:03:40,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 01:03:40,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 01:03:40,272 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-17 01:03:40,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 01:03:40,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60686797] [2024-12-17 01:03:40,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60686797] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 01:03:40,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 01:03:40,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-17 01:03:40,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389463198] [2024-12-17 01:03:40,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 01:03:40,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-17 01:03:40,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 01:03:40,278 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-17 01:03:40,278 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-17 01:03:40,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 01:03:40,279 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 01:03:40,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 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) [2024-12-17 01:03:40,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 01:03:40,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 01:03:40,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 01:03:40,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 01:03:40,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-17 01:03:40,310 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-12-17 01:03:40,310 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 01:03:40,310 INFO L139 ounterexampleChecker]: Examining path program with hash -1228174138, occurence #1 [2024-12-17 01:03:40,310 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 01:03:40,310 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 01:03:40,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 01:03:40,310 INFO L85 PathProgramCache]: Analyzing trace with hash -517289381, now seen corresponding path program 1 times [2024-12-17 01:03:40,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 01:03:40,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776446900] [2024-12-17 01:03:40,311 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 01:03:40,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 01:03:40,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 01:03:40,391 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-17 01:03:40,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 01:03:40,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776446900] [2024-12-17 01:03:40,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776446900] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-17 01:03:40,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [661464810] [2024-12-17 01:03:40,391 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 01:03:40,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 01:03:40,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 01:03:40,393 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-17 01:03:40,395 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-17 01:03:40,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 01:03:40,421 INFO L256 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-17 01:03:40,423 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 01:03:40,479 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-17 01:03:40,479 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-17 01:03:40,536 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2024-12-17 01:03:40,537 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 11 [2024-12-17 01:03:40,546 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-17 01:03:40,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [661464810] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-17 01:03:40,546 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-17 01:03:40,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2024-12-17 01:03:40,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035478870] [2024-12-17 01:03:40,546 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-17 01:03:40,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-17 01:03:40,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 01:03:40,547 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-17 01:03:40,547 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-17 01:03:40,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 01:03:40,547 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 01:03:40,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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) [2024-12-17 01:03:40,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 01:03:40,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 01:03:40,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 01:03:40,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 01:03:40,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 01:03:40,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 01:03:40,627 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-12-17 01:03:40,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 01:03:40,822 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-12-17 01:03:40,822 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 01:03:40,822 INFO L139 ounterexampleChecker]: Examining path program with hash -1228174138, occurence #2 [2024-12-17 01:03:40,822 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-17 01:03:40,822 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2024-12-17 01:03:40,822 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 01:03:40,822 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2024-12-17 01:03:40,822 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 01:03:40,822 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-17 01:03:40,822 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 01:03:40,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 01:03:40,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1144633324, now seen corresponding path program 2 times [2024-12-17 01:03:40,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 01:03:40,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092435406] [2024-12-17 01:03:40,823 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-17 01:03:40,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 01:03:40,832 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-17 01:03:40,832 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 01:03:40,872 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-17 01:03:40,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 01:03:40,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092435406] [2024-12-17 01:03:40,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092435406] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-17 01:03:40,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [800975166] [2024-12-17 01:03:40,873 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-17 01:03:40,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 01:03:40,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 01:03:40,875 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-17 01:03:40,876 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-17 01:03:40,895 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-17 01:03:40,895 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 01:03:40,896 INFO L256 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-17 01:03:40,896 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 01:03:40,909 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-17 01:03:40,910 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-17 01:03:40,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [800975166] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 01:03:40,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-17 01:03:40,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 4 [2024-12-17 01:03:40,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262253107] [2024-12-17 01:03:40,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 01:03:40,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-17 01:03:40,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 01:03:40,911 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-17 01:03:40,911 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-12-17 01:03:40,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 01:03:40,911 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 01:03:40,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2024-12-17 01:03:40,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 01:03:40,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 01:03:40,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-17 01:03:40,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 01:03:40,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 01:03:40,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 01:03:40,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 01:03:40,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 01:03:40,951 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-17 01:03:41,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 01:03:41,147 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-12-17 01:03:41,147 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 01:03:41,147 INFO L139 ounterexampleChecker]: Examining path program with hash -1228174138, occurence #3 [2024-12-17 01:03:41,147 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-17 01:03:41,147 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2024-12-17 01:03:41,148 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 01:03:41,148 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-17 01:03:41,148 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 01:03:41,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 01:03:41,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1651348291, now seen corresponding path program 3 times [2024-12-17 01:03:41,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 01:03:41,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612729246] [2024-12-17 01:03:41,148 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-17 01:03:41,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 01:03:41,155 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-12-17 01:03:41,155 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 01:03:41,237 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-17 01:03:41,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 01:03:41,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612729246] [2024-12-17 01:03:41,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612729246] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-17 01:03:41,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1966166211] [2024-12-17 01:03:41,238 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-17 01:03:41,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 01:03:41,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 01:03:41,241 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-17 01:03:41,242 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-17 01:03:41,266 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-12-17 01:03:41,266 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 01:03:41,266 INFO L256 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-17 01:03:41,267 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 01:03:41,291 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-17 01:03:41,291 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-17 01:03:41,307 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2024-12-17 01:03:41,307 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 11 [2024-12-17 01:03:41,318 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-17 01:03:41,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1966166211] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-17 01:03:41,318 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-17 01:03:41,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2024-12-17 01:03:41,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024495409] [2024-12-17 01:03:41,318 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-17 01:03:41,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-17 01:03:41,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 01:03:41,319 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-17 01:03:41,319 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-17 01:03:41,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 01:03:41,319 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 01:03:41,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 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) [2024-12-17 01:03:41,319 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 01:03:41,319 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 01:03:41,319 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-17 01:03:41,319 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 01:03:41,319 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 01:03:41,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 01:03:41,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 01:03:41,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 01:03:41,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 01:03:41,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-17 01:03:41,419 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-12-17 01:03:41,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 01:03:41,616 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-12-17 01:03:41,616 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 01:03:41,616 INFO L139 ounterexampleChecker]: Examining path program with hash 1363383879, occurence #1 [2024-12-17 01:03:41,616 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 01:03:41,616 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 01:03:41,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 01:03:41,616 INFO L85 PathProgramCache]: Analyzing trace with hash 277198024, now seen corresponding path program 4 times [2024-12-17 01:03:41,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 01:03:41,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023214088] [2024-12-17 01:03:41,616 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-17 01:03:41,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 01:03:41,623 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-17 01:03:41,623 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 01:03:41,763 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-17 01:03:41,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 01:03:41,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023214088] [2024-12-17 01:03:41,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023214088] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-17 01:03:41,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1635844141] [2024-12-17 01:03:41,763 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-17 01:03:41,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 01:03:41,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 01:03:41,765 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-17 01:03:41,771 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-17 01:03:41,798 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-17 01:03:41,799 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 01:03:41,799 INFO L256 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-17 01:03:41,800 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 01:03:41,830 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-17 01:03:41,830 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-17 01:03:41,849 INFO L349 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2024-12-17 01:03:41,850 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 13 [2024-12-17 01:03:41,863 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-17 01:03:41,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1635844141] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-17 01:03:41,864 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-17 01:03:41,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 8 [2024-12-17 01:03:41,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471194525] [2024-12-17 01:03:41,864 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-17 01:03:41,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-17 01:03:41,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 01:03:41,864 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-17 01:03:41,864 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-12-17 01:03:41,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 01:03:41,865 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 01:03:41,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.111111111111111) internal successors, (19), 8 states have internal predecessors, (19), 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) [2024-12-17 01:03:41,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 01:03:41,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 01:03:41,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-17 01:03:41,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 01:03:41,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-17 01:03:41,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 01:03:41,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 01:03:41,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 01:03:41,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 01:03:41,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 01:03:41,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-17 01:03:41,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-17 01:03:41,978 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-17 01:03:42,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 01:03:42,176 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-12-17 01:03:42,176 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 01:03:42,176 INFO L139 ounterexampleChecker]: Examining path program with hash 1363383879, occurence #2 [2024-12-17 01:03:42,176 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-17 01:03:42,176 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2024-12-17 01:03:42,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 01:03:42,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1817028674, now seen corresponding path program 1 times [2024-12-17 01:03:42,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-12-17 01:03:42,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283003004] [2024-12-17 01:03:42,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 01:03:42,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 01:03:42,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 01:03:42,234 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-17 01:03:42,234 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-12-17 01:03:42,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283003004] [2024-12-17 01:03:42,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283003004] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 01:03:42,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 01:03:42,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-17 01:03:42,236 INFO L172 ounterexampleChecker]: Successfully proved commutativity at non-minimality point 9. Constructing proof automaton... [2024-12-17 01:03:42,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 01:03:42,236 INFO L311 artialOrderCegarLoop]: Commutativity proof succeeded, skipping feasibility check. [2024-12-17 01:03:42,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-17 01:03:42,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SMTINTERPOL [2024-12-17 01:03:42,237 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-17 01:03:42,237 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-12-17 01:03:42,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 01:03:42,237 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 01:03:42,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) [2024-12-17 01:03:42,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 01:03:42,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-17 01:03:42,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-17 01:03:42,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-17 01:03:42,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-17 01:03:42,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-12-17 01:03:42,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 01:03:42,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 01:03:42,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-17 01:03:42,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 01:03:42,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-17 01:03:42,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-17 01:03:42,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-17 01:03:42,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 01:03:42,291 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2024-12-17 01:03:42,292 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2024-12-17 01:03:42,292 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-12-17 01:03:42,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-17 01:03:42,295 INFO L422 BasicCegarLoop]: Path program histogram: [4, 1, 1] [2024-12-17 01:03:42,297 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-12-17 01:03:42,297 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-17 01:03:42,305 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2024-12-17 01:03:42,306 INFO L201 PluginConnector]: Adding new model simple-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 01:03:42 BasicIcfg [2024-12-17 01:03:42,306 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-17 01:03:42,306 INFO L158 Benchmark]: Toolchain (without parser) took 2704.52ms. Allocated memory was 167.8MB in the beginning and 142.6MB in the end (delta: -25.2MB). Free memory was 96.9MB in the beginning and 95.0MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.0GB. [2024-12-17 01:03:42,307 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.16ms. Allocated memory is still 167.8MB. Free memory is still 98.0MB. There was no memory consumed. Max. memory is 16.0GB. [2024-12-17 01:03:42,307 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.85ms. Allocated memory is still 167.8MB. Free memory was 96.9MB in the beginning and 95.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. [2024-12-17 01:03:42,307 INFO L158 Benchmark]: Boogie Preprocessor took 9.57ms. Allocated memory is still 167.8MB. Free memory was 95.9MB in the beginning and 94.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. [2024-12-17 01:03:42,307 INFO L158 Benchmark]: RCFGBuilder took 156.97ms. Allocated memory is still 167.8MB. Free memory was 94.8MB in the beginning and 85.8MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.0GB. [2024-12-17 01:03:42,307 INFO L158 Benchmark]: TraceAbstraction took 2515.19ms. Allocated memory was 167.8MB in the beginning and 142.6MB in the end (delta: -25.2MB). Free memory was 85.8MB in the beginning and 95.0MB in the end (delta: -9.2MB). There was no memory consumed. Max. memory is 16.0GB. [2024-12-17 01:03:42,308 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.16ms. Allocated memory is still 167.8MB. Free memory is still 98.0MB. There was no memory consumed. Max. memory is 16.0GB. * Boogie Procedure Inliner took 17.85ms. Allocated memory is still 167.8MB. Free memory was 96.9MB in the beginning and 95.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. * Boogie Preprocessor took 9.57ms. Allocated memory is still 167.8MB. Free memory was 95.9MB in the beginning and 94.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 156.97ms. Allocated memory is still 167.8MB. Free memory was 94.8MB in the beginning and 85.8MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.0GB. * TraceAbstraction took 2515.19ms. Allocated memory was 167.8MB in the beginning and 142.6MB in the end (delta: -25.2MB). Free memory was 85.8MB in the beginning and 95.0MB in the end (delta: -9.2MB). There was no memory consumed. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 374, independent: 250, independent conditional: 193, independent unconditional: 57, dependent: 124, dependent conditional: 123, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 260, independent: 250, independent conditional: 193, independent unconditional: 57, dependent: 10, dependent conditional: 9, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 260, independent: 250, independent conditional: 193, independent unconditional: 57, dependent: 10, dependent conditional: 9, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 288, independent: 250, independent conditional: 193, independent unconditional: 57, dependent: 38, dependent conditional: 37, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 288, independent: 250, independent conditional: 12, independent unconditional: 238, dependent: 38, dependent conditional: 12, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 288, independent: 250, independent conditional: 12, independent unconditional: 238, dependent: 38, dependent conditional: 12, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 67, independent: 62, independent conditional: 4, independent unconditional: 58, dependent: 5, dependent conditional: 4, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 67, independent: 56, independent conditional: 0, independent unconditional: 56, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 11, independent: 6, independent conditional: 4, independent unconditional: 2, dependent: 5, dependent conditional: 4, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 11, independent: 6, independent conditional: 4, independent unconditional: 2, dependent: 5, dependent conditional: 4, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 214, independent: 89, independent conditional: 52, independent unconditional: 36, dependent: 125, dependent conditional: 66, dependent unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 1, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 288, independent: 188, independent conditional: 8, independent unconditional: 180, dependent: 33, dependent conditional: 8, dependent unconditional: 25, unknown: 67, unknown conditional: 8, unknown unconditional: 59] , Statistics on independence cache: Total cache size (in pairs): 68, Positive cache size: 63, Positive conditional cache size: 5, Positive unconditional cache size: 58, Negative cache size: 5, Negative conditional cache size: 4, Negative unconditional cache size: 1, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 206, Maximal queried relation: 3, Independence queries for same thread: 114, Persistent sets #1 benchmarks: Persistent set computation time: 0.1s, Number of persistent set computation: 16, Number of trivial persistent sets: 13, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 58, independent: 57, independent conditional: 0, independent unconditional: 57, 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: 374, independent: 250, independent conditional: 193, independent unconditional: 57, dependent: 124, dependent conditional: 123, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 260, independent: 250, independent conditional: 193, independent unconditional: 57, dependent: 10, dependent conditional: 9, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 260, independent: 250, independent conditional: 193, independent unconditional: 57, dependent: 10, dependent conditional: 9, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 288, independent: 250, independent conditional: 193, independent unconditional: 57, dependent: 38, dependent conditional: 37, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 288, independent: 250, independent conditional: 12, independent unconditional: 238, dependent: 38, dependent conditional: 12, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 288, independent: 250, independent conditional: 12, independent unconditional: 238, dependent: 38, dependent conditional: 12, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 67, independent: 62, independent conditional: 4, independent unconditional: 58, dependent: 5, dependent conditional: 4, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 67, independent: 56, independent conditional: 0, independent unconditional: 56, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 11, independent: 6, independent conditional: 4, independent unconditional: 2, dependent: 5, dependent conditional: 4, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 11, independent: 6, independent conditional: 4, independent unconditional: 2, dependent: 5, dependent conditional: 4, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 214, independent: 89, independent conditional: 52, independent unconditional: 36, dependent: 125, dependent conditional: 66, dependent unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 1, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 288, independent: 188, independent conditional: 8, independent unconditional: 180, dependent: 33, dependent conditional: 8, dependent unconditional: 25, unknown: 67, unknown conditional: 8, unknown unconditional: 59] , Statistics on independence cache: Total cache size (in pairs): 68, Positive cache size: 63, Positive conditional cache size: 5, Positive unconditional cache size: 58, Negative cache size: 5, Negative conditional cache size: 4, Negative unconditional cache size: 1, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 206, Maximal queried relation: 3, Independence queries for same thread: 114 - PositiveResult [Line: 46]: 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, 19 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 2.4s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.5s, 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: 33, 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, 0.7s InterpolantComputationTime, 127 NumberOfCodeBlocks, 127 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 156 ConstructedInterpolants, 0 QuantifiedInterpolants, 506 SizeOfPredicates, 6 NumberOfNonLiveVariables, 169 ConjunctsInSsa, 41 ConjunctsInUnsatCore, 13 InterpolantComputations, 3 PerfectInterpolantSequences, 24/50 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: SuccessfulCommutativityProofs: 1, ConComChecker Statistics: CheckTime [ms]: 60, ConditionCalculationTime [ms]: 21, ConditionCalculations: 3, QuantifiedConditions: 0, TraceChecks: 1, UnknownTraceChecks: 0, ImperfectProofs: 0 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-12-17 01:03:42,323 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...