/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 --traceabstraction.use.conditional.por.in.concurrent.analysis true --traceabstraction.commutativity.condition.synthesis SUFFICIENT -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerBplInline.xml -s ../benchexec/../../../trunk/examples/settings/default/gemcutter/svcomp-Reach-32bit-GemCutter_Default.epf --rcfgbuilder.only.consider.context.switches.at.boundaries.of.atomic.blocks false -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-3.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-dev-42d8767-m [2025-04-25 09:04:27,169 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-25 09:04:27,216 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../benchexec/../../../trunk/examples/settings/default/gemcutter/svcomp-Reach-32bit-GemCutter_Default.epf [2025-04-25 09:04:27,224 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-25 09:04:27,224 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-25 09:04:27,242 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-25 09:04:27,242 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-25 09:04:27,242 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-25 09:04:27,242 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-25 09:04:27,242 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-25 09:04:27,243 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-25 09:04:27,243 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-25 09:04:27,243 INFO L153 SettingsManager]: * Use SBE=true [2025-04-25 09:04:27,243 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-25 09:04:27,243 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-25 09:04:27,243 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-25 09:04:27,243 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-25 09:04:27,243 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-25 09:04:27,243 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-25 09:04:27,243 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-25 09:04:27,243 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-25 09:04:27,243 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-25 09:04:27,243 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-25 09:04:27,243 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-25 09:04:27,243 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-25 09:04:27,243 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-25 09:04:27,244 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-25 09:04:27,244 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-25 09:04:27,244 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-25 09:04:27,244 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-25 09:04:27,244 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-25 09:04:27,244 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-25 09:04:27,244 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-25 09:04:27,244 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-25 09:04:27,244 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-25 09:04:27,244 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-25 09:04:27,244 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-25 09:04:27,244 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-25 09:04:27,244 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-25 09:04:27,244 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-04-25 09:04:27,244 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-25 09:04:27,244 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-25 09:04:27,245 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-04-25 09:04:27,245 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-25 09:04:27,245 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-04-25 09:04:27,245 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-04-25 09:04:27,245 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-04-25 09:04:27,245 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use conditional POR in concurrent analysis -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> SUFFICIENT Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Only consider context switches at boundaries of atomic blocks -> false [2025-04-25 09:04:27,458 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-25 09:04:27,465 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-25 09:04:27,466 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-25 09:04:27,467 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-04-25 09:04:27,469 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-04-25 09:04:27,470 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-3.wvr.bpl [2025-04-25 09:04:27,470 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-3.wvr.bpl' [2025-04-25 09:04:27,490 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-25 09:04:27,491 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-04-25 09:04:27,491 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-25 09:04:27,491 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-25 09:04:27,491 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-25 09:04:27,500 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "unroll-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.04 09:04:27" (1/1) ... [2025-04-25 09:04:27,517 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "unroll-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.04 09:04:27" (1/1) ... [2025-04-25 09:04:27,522 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-04-25 09:04:27,523 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-25 09:04:27,524 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-25 09:04:27,524 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-25 09:04:27,524 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-25 09:04:27,530 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "unroll-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.04 09:04:27" (1/1) ... [2025-04-25 09:04:27,530 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "unroll-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.04 09:04:27" (1/1) ... [2025-04-25 09:04:27,531 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "unroll-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.04 09:04:27" (1/1) ... [2025-04-25 09:04:27,532 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "unroll-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.04 09:04:27" (1/1) ... [2025-04-25 09:04:27,534 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "unroll-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.04 09:04:27" (1/1) ... [2025-04-25 09:04:27,534 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "unroll-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.04 09:04:27" (1/1) ... [2025-04-25 09:04:27,536 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "unroll-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.04 09:04:27" (1/1) ... [2025-04-25 09:04:27,537 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "unroll-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.04 09:04:27" (1/1) ... [2025-04-25 09:04:27,537 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "unroll-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.04 09:04:27" (1/1) ... [2025-04-25 09:04:27,545 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-25 09:04:27,546 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-25 09:04:27,546 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-25 09:04:27,546 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-25 09:04:27,547 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "unroll-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.04 09:04:27" (1/1) ... [2025-04-25 09:04:27,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-25 09:04:27,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 09:04:27,577 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-25 09:04:27,589 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-25 09:04:27,610 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-04-25 09:04:27,610 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-25 09:04:27,610 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-25 09:04:27,610 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-04-25 09:04:27,610 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-25 09:04:27,610 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-25 09:04:27,610 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-04-25 09:04:27,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-25 09:04:27,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-25 09:04:27,611 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-25 09:04:27,650 INFO L234 CfgBuilder]: Building ICFG [2025-04-25 09:04:27,652 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-25 09:04:27,726 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-25 09:04:27,726 INFO L283 CfgBuilder]: Performing block encoding [2025-04-25 09:04:27,763 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-25 09:04:27,763 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2025-04-25 09:04:27,765 INFO L201 PluginConnector]: Adding new model unroll-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.04 09:04:27 BoogieIcfgContainer [2025-04-25 09:04:27,765 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-25 09:04:27,767 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-25 09:04:27,768 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-25 09:04:27,772 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-25 09:04:27,772 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "unroll-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.04 09:04:27" (1/2) ... [2025-04-25 09:04:27,773 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1987ff17 and model type unroll-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.04 09:04:27, skipping insertion in model container [2025-04-25 09:04:27,773 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "unroll-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.04 09:04:27" (2/2) ... [2025-04-25 09:04:27,775 INFO L128 eAbstractionObserver]: Analyzing ICFG unroll-3.wvr.bpl [2025-04-25 09:04:27,786 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-25 09:04:27,788 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG unroll-3.wvr.bpl that has 3 procedures, 16 locations, 15 edges, 1 initial locations, 2 loop locations, and 1 error locations. [2025-04-25 09:04:27,788 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-25 09:04:27,820 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-04-25 09:04:27,868 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-25 09:04:27,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-25 09:04:27,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 09:04:27,872 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-04-25 09:04:27,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-04-25 09:04:27,935 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-04-25 09:04:27,957 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-04-25 09:04:27,964 INFO L340 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;@45f95961, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-25 09:04:27,964 INFO L341 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-04-25 09:04:28,020 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-25 09:04:28,021 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 09:04:28,021 INFO L139 ounterexampleChecker]: Examining path program with hash -342544275, occurence #1 [2025-04-25 09:04:28,021 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-25 09:04:28,021 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 09:04:28,027 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 09:04:28,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1124772618, now seen corresponding path program 1 times [2025-04-25 09:04:28,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 09:04:28,035 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920328776] [2025-04-25 09:04:28,035 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-25 09:04:28,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 09:04:28,098 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-04-25 09:04:28,113 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-04-25 09:04:28,113 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 09:04:28,113 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 09:04:28,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 09:04:28,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 09:04:28,198 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920328776] [2025-04-25 09:04:28,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920328776] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-25 09:04:28,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-25 09:04:28,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-25 09:04:28,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79946436] [2025-04-25 09:04:28,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-25 09:04:28,207 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-25 09:04:28,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 09:04:28,227 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-25 09:04:28,228 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-25 09:04:28,229 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 09:04:28,231 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 09:04:28,232 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 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) [2025-04-25 09:04:28,233 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 09:04:28,271 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 09:04:28,272 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-25 09:04:28,272 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-25 09:04:28,272 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 09:04:28,272 INFO L139 ounterexampleChecker]: Examining path program with hash -342544275, occurence #2 [2025-04-25 09:04:28,272 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-25 09:04:28,273 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2025-04-25 09:04:28,273 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-25 09:04:28,274 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2025-04-25 09:04:28,274 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 09:04:28,274 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2025-04-25 09:04:28,274 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-25 09:04:28,274 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-25 09:04:28,274 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 09:04:28,275 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 09:04:28,275 INFO L85 PathProgramCache]: Analyzing trace with hash 534828936, now seen corresponding path program 1 times [2025-04-25 09:04:28,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 09:04:28,276 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095540786] [2025-04-25 09:04:28,276 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-25 09:04:28,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 09:04:28,281 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-04-25 09:04:28,331 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-04-25 09:04:28,331 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 09:04:28,331 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 09:04:28,389 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 09:04:28,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 09:04:28,389 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095540786] [2025-04-25 09:04:28,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095540786] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-25 09:04:28,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-25 09:04:28,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-25 09:04:28,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416479196] [2025-04-25 09:04:28,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-25 09:04:28,390 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-25 09:04:28,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 09:04:28,391 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-25 09:04:28,391 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-25 09:04:28,391 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 09:04:28,391 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 09:04:28,391 INFO L486 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) [2025-04-25 09:04:28,392 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 09:04:28,392 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 09:04:28,475 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 09:04:28,479 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:04:28,479 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-25 09:04:28,479 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-25 09:04:28,479 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 09:04:28,480 INFO L139 ounterexampleChecker]: Examining path program with hash -1872707285, occurence #1 [2025-04-25 09:04:28,480 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-25 09:04:28,480 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 09:04:28,480 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 09:04:28,480 INFO L85 PathProgramCache]: Analyzing trace with hash 212342529, now seen corresponding path program 1 times [2025-04-25 09:04:28,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 09:04:28,480 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401323220] [2025-04-25 09:04:28,481 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-25 09:04:28,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 09:04:28,485 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-04-25 09:04:28,488 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-04-25 09:04:28,488 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 09:04:28,489 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 09:04:28,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 09:04:28,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 09:04:28,548 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401323220] [2025-04-25 09:04:28,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401323220] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-25 09:04:28,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-25 09:04:28,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-25 09:04:28,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146277510] [2025-04-25 09:04:28,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-25 09:04:28,549 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-25 09:04:28,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 09:04:28,549 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-25 09:04:28,549 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-25 09:04:28,549 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 09:04:28,549 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 09:04:28,549 INFO L486 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) [2025-04-25 09:04:28,550 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 09:04:28,550 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:04:28,550 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 09:04:28,594 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 09:04:28,594 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:04:28,595 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 09:04:28,595 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-25 09:04:28,597 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-25 09:04:28,597 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 09:04:28,597 INFO L139 ounterexampleChecker]: Examining path program with hash 1040328539, occurence #1 [2025-04-25 09:04:28,597 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-25 09:04:28,597 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 09:04:28,597 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 09:04:28,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1941477779, now seen corresponding path program 1 times [2025-04-25 09:04:28,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 09:04:28,597 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518429986] [2025-04-25 09:04:28,597 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-25 09:04:28,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 09:04:28,601 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-04-25 09:04:28,612 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-04-25 09:04:28,612 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 09:04:28,612 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 09:04:28,706 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 09:04:28,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 09:04:28,707 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518429986] [2025-04-25 09:04:28,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518429986] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 09:04:28,707 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1679233184] [2025-04-25 09:04:28,707 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-25 09:04:28,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 09:04:28,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 09:04:28,713 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-25 09:04:28,714 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-04-25 09:04:28,737 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-04-25 09:04:28,745 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-04-25 09:04:28,746 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 09:04:28,746 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 09:04:28,748 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-04-25 09:04:28,753 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 09:04:28,817 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 09:04:28,817 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-25 09:04:28,860 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 09:04:28,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1679233184] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-25 09:04:28,860 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-25 09:04:28,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2025-04-25 09:04:28,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316541767] [2025-04-25 09:04:28,860 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-25 09:04:28,860 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-25 09:04:28,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 09:04:28,861 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-25 09:04:28,861 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-04-25 09:04:28,861 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 09:04:28,861 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 09:04:28,861 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 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) [2025-04-25 09:04:28,861 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 09:04:28,861 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:04:28,861 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-25 09:04:28,861 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 09:04:28,908 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 09:04:28,909 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:04:28,909 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 09:04:28,910 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:04:28,917 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-04-25 09:04:29,114 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 09:04:29,114 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-25 09:04:29,114 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 09:04:29,114 INFO L139 ounterexampleChecker]: Examining path program with hash -1872707285, occurence #2 [2025-04-25 09:04:29,114 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-25 09:04:29,114 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2025-04-25 09:04:29,114 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-25 09:04:29,115 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 11 [2025-04-25 09:04:29,115 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 09:04:29,115 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2025-04-25 09:04:29,115 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-25 09:04:29,115 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-25 09:04:29,115 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 09:04:29,115 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 09:04:29,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1503542451, now seen corresponding path program 2 times [2025-04-25 09:04:29,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 09:04:29,115 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908459062] [2025-04-25 09:04:29,115 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-25 09:04:29,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 09:04:29,120 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 15 statements into 2 equivalence classes. [2025-04-25 09:04:29,126 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 15 of 15 statements. [2025-04-25 09:04:29,126 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-25 09:04:29,126 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 09:04:29,215 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 09:04:29,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 09:04:29,215 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908459062] [2025-04-25 09:04:29,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908459062] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 09:04:29,215 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1047951181] [2025-04-25 09:04:29,215 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-25 09:04:29,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 09:04:29,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 09:04:29,218 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-25 09:04:29,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-04-25 09:04:29,236 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 15 statements into 2 equivalence classes. [2025-04-25 09:04:29,245 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 15 of 15 statements. [2025-04-25 09:04:29,246 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-25 09:04:29,246 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 09:04:29,246 INFO L256 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-04-25 09:04:29,247 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 09:04:29,352 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-25 09:04:29,353 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 19 treesize of output 37 [2025-04-25 09:04:29,378 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 09:04:29,378 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-25 09:04:29,493 INFO L325 Elim1Store]: treesize reduction 15, result has 87.6 percent of original size [2025-04-25 09:04:29,494 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 15 case distinctions, treesize of input 15 treesize of output 125 [2025-04-25 09:04:29,743 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 09:04:29,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1047951181] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-25 09:04:29,743 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-25 09:04:29,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 5] total 10 [2025-04-25 09:04:29,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484070400] [2025-04-25 09:04:29,744 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-25 09:04:29,744 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-04-25 09:04:29,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 09:04:29,744 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-04-25 09:04:29,744 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2025-04-25 09:04:29,744 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 09:04:29,744 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 09:04:29,745 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 10 states have internal predecessors, (26), 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) [2025-04-25 09:04:29,745 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 09:04:29,745 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:04:29,745 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-25 09:04:29,745 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:04:29,745 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 09:04:29,824 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 09:04:29,824 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:04:29,824 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 09:04:29,824 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:04:29,824 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-25 09:04:29,832 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-04-25 09:04:30,029 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 09:04:30,029 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-25 09:04:30,029 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 09:04:30,029 INFO L139 ounterexampleChecker]: Examining path program with hash -1872707285, occurence #3 [2025-04-25 09:04:30,029 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-25 09:04:30,029 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2025-04-25 09:04:30,029 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-25 09:04:30,032 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 12 [2025-04-25 09:04:30,032 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 09:04:30,033 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2025-04-25 09:04:30,033 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-25 09:04:30,033 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-25 09:04:30,033 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 09:04:30,033 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 09:04:30,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1457664478, now seen corresponding path program 3 times [2025-04-25 09:04:30,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 09:04:30,033 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787502734] [2025-04-25 09:04:30,033 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-25 09:04:30,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 09:04:30,037 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 16 statements into 2 equivalence classes. [2025-04-25 09:04:30,042 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 16 of 16 statements. [2025-04-25 09:04:30,042 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-04-25 09:04:30,042 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 09:04:30,104 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 09:04:30,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 09:04:30,104 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787502734] [2025-04-25 09:04:30,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787502734] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 09:04:30,104 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [838228514] [2025-04-25 09:04:30,105 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-25 09:04:30,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 09:04:30,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 09:04:30,106 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-25 09:04:30,108 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-04-25 09:04:30,123 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 16 statements into 2 equivalence classes. [2025-04-25 09:04:30,129 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 16 of 16 statements. [2025-04-25 09:04:30,129 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-04-25 09:04:30,129 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 09:04:30,129 INFO L256 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-04-25 09:04:30,130 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 09:04:30,153 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 09:04:30,153 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-25 09:04:30,218 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 09:04:30,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [838228514] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-25 09:04:30,218 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-25 09:04:30,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2025-04-25 09:04:30,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168591843] [2025-04-25 09:04:30,218 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-25 09:04:30,218 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-04-25 09:04:30,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 09:04:30,219 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-04-25 09:04:30,219 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2025-04-25 09:04:30,219 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 09:04:30,219 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 09:04:30,219 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 12 states have internal predecessors, (27), 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) [2025-04-25 09:04:30,219 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 09:04:30,219 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:04:30,219 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-25 09:04:30,219 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:04:30,219 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-25 09:04:30,219 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 09:04:30,335 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 09:04:30,336 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:04:30,336 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 09:04:30,336 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:04:30,336 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-25 09:04:30,336 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-25 09:04:30,342 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-04-25 09:04:30,536 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 09:04:30,537 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-25 09:04:30,537 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 09:04:30,537 INFO L139 ounterexampleChecker]: Examining path program with hash -1872707285, occurence #4 [2025-04-25 09:04:30,537 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-25 09:04:30,537 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 12 [2025-04-25 09:04:30,537 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 09:04:30,537 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2025-04-25 09:04:30,537 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-25 09:04:30,537 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-25 09:04:30,537 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 09:04:30,537 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 09:04:30,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1653264965, now seen corresponding path program 4 times [2025-04-25 09:04:30,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 09:04:30,538 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030424758] [2025-04-25 09:04:30,538 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-25 09:04:30,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 09:04:30,548 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 16 statements into 2 equivalence classes. [2025-04-25 09:04:30,550 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-04-25 09:04:30,550 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-04-25 09:04:30,551 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 09:04:30,637 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 09:04:30,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 09:04:30,637 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030424758] [2025-04-25 09:04:30,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030424758] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 09:04:30,637 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1260947994] [2025-04-25 09:04:30,637 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-25 09:04:30,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 09:04:30,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 09:04:30,641 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-25 09:04:30,642 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-04-25 09:04:30,658 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 16 statements into 2 equivalence classes. [2025-04-25 09:04:30,669 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-04-25 09:04:30,669 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-04-25 09:04:30,669 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 09:04:30,669 INFO L256 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-04-25 09:04:30,670 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 09:04:30,691 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 09:04:30,691 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-25 09:04:30,802 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 09:04:30,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1260947994] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-25 09:04:30,802 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-25 09:04:30,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2025-04-25 09:04:30,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631008100] [2025-04-25 09:04:30,802 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-25 09:04:30,802 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-04-25 09:04:30,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 09:04:30,803 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-04-25 09:04:30,803 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2025-04-25 09:04:30,803 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 09:04:30,803 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 09:04:30,803 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 12 states have internal predecessors, (27), 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) [2025-04-25 09:04:30,803 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 09:04:30,803 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:04:30,803 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-25 09:04:30,803 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:04:30,803 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-25 09:04:30,803 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-04-25 09:04:30,803 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 09:04:30,921 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 09:04:30,921 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:04:30,921 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 09:04:30,921 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:04:30,921 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-25 09:04:30,921 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-25 09:04:30,923 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-04-25 09:04:30,931 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-04-25 09:04:31,125 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2025-04-25 09:04:31,125 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-25 09:04:31,125 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 09:04:31,125 INFO L139 ounterexampleChecker]: Examining path program with hash -1872707285, occurence #5 [2025-04-25 09:04:31,125 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-25 09:04:31,125 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2025-04-25 09:04:31,125 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-25 09:04:31,125 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2025-04-25 09:04:31,125 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 09:04:31,126 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 15 [2025-04-25 09:04:31,126 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-25 09:04:31,126 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-25 09:04:31,126 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 09:04:31,126 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 09:04:31,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1111233840, now seen corresponding path program 5 times [2025-04-25 09:04:31,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 09:04:31,126 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161697216] [2025-04-25 09:04:31,126 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-25 09:04:31,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 09:04:31,132 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 17 statements into 3 equivalence classes. [2025-04-25 09:04:31,140 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) and asserted 17 of 17 statements. [2025-04-25 09:04:31,141 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2025-04-25 09:04:31,141 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 09:04:31,230 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 09:04:31,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 09:04:31,230 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161697216] [2025-04-25 09:04:31,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161697216] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 09:04:31,230 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1560548218] [2025-04-25 09:04:31,230 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-25 09:04:31,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 09:04:31,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 09:04:31,232 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-25 09:04:31,233 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-04-25 09:04:31,249 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 17 statements into 3 equivalence classes. [2025-04-25 09:04:31,255 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) and asserted 17 of 17 statements. [2025-04-25 09:04:31,255 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2025-04-25 09:04:31,255 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 09:04:31,255 INFO L256 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-04-25 09:04:31,256 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 09:04:31,331 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 09:04:31,331 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-25 09:04:31,434 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 09:04:31,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1560548218] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-25 09:04:31,434 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-25 09:04:31,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 20 [2025-04-25 09:04:31,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498802532] [2025-04-25 09:04:31,434 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-25 09:04:31,434 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-04-25 09:04:31,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 09:04:31,435 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-04-25 09:04:31,435 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=325, Unknown=0, NotChecked=0, Total=420 [2025-04-25 09:04:31,435 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 09:04:31,435 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 09:04:31,435 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 1.9047619047619047) internal successors, (40), 20 states have internal predecessors, (40), 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) [2025-04-25 09:04:31,435 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 09:04:31,435 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:04:31,435 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-25 09:04:31,435 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:04:31,435 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-25 09:04:31,435 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-04-25 09:04:31,435 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-04-25 09:04:31,435 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 09:04:31,773 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 09:04:31,773 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:04:31,773 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 09:04:31,773 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:04:31,773 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-25 09:04:31,773 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-25 09:04:31,773 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-25 09:04:31,774 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2025-04-25 09:04:31,780 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-04-25 09:04:31,978 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 09:04:31,978 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-25 09:04:31,978 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 09:04:31,978 INFO L139 ounterexampleChecker]: Examining path program with hash -1872707285, occurence #6 [2025-04-25 09:04:31,978 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-25 09:04:31,978 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 12 [2025-04-25 09:04:31,978 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-25 09:04:31,978 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 15 [2025-04-25 09:04:31,978 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 09:04:31,978 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2025-04-25 09:04:31,978 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-25 09:04:31,978 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-25 09:04:31,978 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 09:04:31,979 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 09:04:31,979 INFO L85 PathProgramCache]: Analyzing trace with hash -990053744, now seen corresponding path program 6 times [2025-04-25 09:04:31,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 09:04:31,979 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587434448] [2025-04-25 09:04:31,979 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-04-25 09:04:31,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 09:04:31,982 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 19 statements into 3 equivalence classes. [2025-04-25 09:04:31,988 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) and asserted 19 of 19 statements. [2025-04-25 09:04:31,989 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2025-04-25 09:04:31,989 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 09:04:32,101 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 09:04:32,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 09:04:32,101 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587434448] [2025-04-25 09:04:32,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587434448] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 09:04:32,101 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [18207165] [2025-04-25 09:04:32,101 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-04-25 09:04:32,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 09:04:32,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 09:04:32,106 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-25 09:04:32,111 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-04-25 09:04:32,133 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 19 statements into 3 equivalence classes. [2025-04-25 09:04:32,142 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) and asserted 19 of 19 statements. [2025-04-25 09:04:32,142 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2025-04-25 09:04:32,142 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 09:04:32,143 INFO L256 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-04-25 09:04:32,144 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 09:04:32,326 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-25 09:04:32,326 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 31 treesize of output 142 [2025-04-25 09:04:32,531 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 09:04:32,531 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-25 09:04:33,132 INFO L325 Elim1Store]: treesize reduction 30, result has 94.3 percent of original size [2025-04-25 09:04:33,133 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 22 new quantified variables, introduced 66 case distinctions, treesize of input 27 treesize of output 542 [2025-04-25 09:04:38,529 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 09:04:38,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [18207165] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-25 09:04:38,529 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-25 09:04:38,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10, 9] total 18 [2025-04-25 09:04:38,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538365943] [2025-04-25 09:04:38,529 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-25 09:04:38,529 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-04-25 09:04:38,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 09:04:38,530 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-04-25 09:04:38,530 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2025-04-25 09:04:38,530 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 09:04:38,530 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 09:04:38,530 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 1.8421052631578947) internal successors, (35), 18 states have internal predecessors, (35), 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) [2025-04-25 09:04:38,530 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 09:04:38,530 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:04:38,530 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-25 09:04:38,530 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:04:38,530 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-25 09:04:38,530 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-04-25 09:04:38,530 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-25 09:04:38,530 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2025-04-25 09:04:38,530 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 09:04:38,639 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 09:04:38,639 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:04:38,639 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 09:04:38,639 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:04:38,639 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-25 09:04:38,639 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-25 09:04:38,641 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-25 09:04:38,641 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2025-04-25 09:04:38,641 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-25 09:04:38,647 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-04-25 09:04:38,842 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2025-04-25 09:04:38,842 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-25 09:04:38,842 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 09:04:38,842 INFO L139 ounterexampleChecker]: Examining path program with hash -1872707285, occurence #7 [2025-04-25 09:04:38,842 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-25 09:04:38,843 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2025-04-25 09:04:38,843 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-25 09:04:38,843 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2025-04-25 09:04:38,843 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 09:04:38,843 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2025-04-25 09:04:38,843 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-25 09:04:38,843 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-25 09:04:38,843 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 09:04:38,843 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 09:04:38,843 INFO L85 PathProgramCache]: Analyzing trace with hash 195945211, now seen corresponding path program 7 times [2025-04-25 09:04:38,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 09:04:38,843 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243783812] [2025-04-25 09:04:38,843 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-04-25 09:04:38,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 09:04:38,846 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-04-25 09:04:38,850 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-04-25 09:04:38,850 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 09:04:38,850 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 09:04:38,933 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 09:04:38,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 09:04:38,933 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243783812] [2025-04-25 09:04:38,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243783812] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 09:04:38,933 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [704359031] [2025-04-25 09:04:38,933 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-04-25 09:04:38,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 09:04:38,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 09:04:38,935 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-25 09:04:38,937 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-04-25 09:04:38,952 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-04-25 09:04:38,959 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-04-25 09:04:38,959 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 09:04:38,959 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 09:04:38,960 INFO L256 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-04-25 09:04:38,961 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 09:04:38,986 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 09:04:38,986 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-25 09:04:39,095 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 09:04:39,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [704359031] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-25 09:04:39,095 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-25 09:04:39,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 18 [2025-04-25 09:04:39,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758952927] [2025-04-25 09:04:39,096 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-25 09:04:39,096 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-04-25 09:04:39,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 09:04:39,097 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-04-25 09:04:39,098 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2025-04-25 09:04:39,098 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 09:04:39,098 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 09:04:39,098 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 1.736842105263158) internal successors, (33), 18 states have internal predecessors, (33), 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) [2025-04-25 09:04:39,098 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 09:04:39,098 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:04:39,098 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-25 09:04:39,098 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:04:39,098 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-25 09:04:39,098 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-04-25 09:04:39,098 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-25 09:04:39,098 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2025-04-25 09:04:39,098 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-04-25 09:04:39,098 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 09:04:39,340 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 09:04:39,340 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:04:39,340 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 09:04:39,340 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:04:39,340 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-25 09:04:39,340 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-25 09:04:39,340 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-25 09:04:39,340 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2025-04-25 09:04:39,341 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-25 09:04:39,341 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-04-25 09:04:39,346 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-04-25 09:04:39,541 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 09:04:39,541 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-25 09:04:39,541 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 09:04:39,541 INFO L139 ounterexampleChecker]: Examining path program with hash -1872707285, occurence #8 [2025-04-25 09:04:39,541 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-25 09:04:39,541 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2025-04-25 09:04:39,541 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-25 09:04:39,542 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2025-04-25 09:04:39,542 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 09:04:39,542 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2025-04-25 09:04:39,542 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-25 09:04:39,542 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-25 09:04:39,542 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 09:04:39,542 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 09:04:39,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1707451123, now seen corresponding path program 8 times [2025-04-25 09:04:39,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 09:04:39,542 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393973431] [2025-04-25 09:04:39,542 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-25 09:04:39,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 09:04:39,544 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 21 statements into 2 equivalence classes. [2025-04-25 09:04:39,548 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 21 of 21 statements. [2025-04-25 09:04:39,548 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-25 09:04:39,548 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 09:04:39,686 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 09:04:39,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 09:04:39,686 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393973431] [2025-04-25 09:04:39,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393973431] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 09:04:39,686 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2116200076] [2025-04-25 09:04:39,686 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-25 09:04:39,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 09:04:39,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 09:04:39,688 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-25 09:04:39,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-04-25 09:04:39,704 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 21 statements into 2 equivalence classes. [2025-04-25 09:04:39,710 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 21 of 21 statements. [2025-04-25 09:04:39,710 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-25 09:04:39,710 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 09:04:39,711 INFO L256 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-04-25 09:04:39,711 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 09:04:39,811 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 09:04:39,811 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-25 09:04:44,252 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 09:04:44,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2116200076] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-25 09:04:44,252 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-25 09:04:44,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 28 [2025-04-25 09:04:44,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544902391] [2025-04-25 09:04:44,252 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-25 09:04:44,253 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2025-04-25 09:04:44,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 09:04:44,253 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2025-04-25 09:04:44,254 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=194, Invalid=618, Unknown=0, NotChecked=0, Total=812 [2025-04-25 09:04:44,254 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 09:04:44,254 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 09:04:44,254 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 1.4827586206896552) internal successors, (43), 28 states have internal predecessors, (43), 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) [2025-04-25 09:04:44,254 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 09:04:44,254 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:04:44,254 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-25 09:04:44,254 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:04:44,254 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-25 09:04:44,254 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-04-25 09:04:44,254 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-25 09:04:44,254 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2025-04-25 09:04:44,254 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-04-25 09:04:44,254 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-04-25 09:04:44,254 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 09:04:44,604 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 09:04:44,604 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:04:44,604 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 09:04:44,605 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:04:44,605 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-25 09:04:44,605 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-25 09:04:44,605 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-25 09:04:44,605 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2025-04-25 09:04:44,605 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-25 09:04:44,605 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-04-25 09:04:44,605 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-04-25 09:04:44,610 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-04-25 09:04:44,805 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 09:04:44,805 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-25 09:04:44,806 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 09:04:44,806 INFO L139 ounterexampleChecker]: Examining path program with hash -1872707285, occurence #9 [2025-04-25 09:04:44,806 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-25 09:04:44,806 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2025-04-25 09:04:44,806 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-25 09:04:44,806 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2025-04-25 09:04:44,806 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 09:04:44,806 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 21 [2025-04-25 09:04:44,806 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-25 09:04:44,806 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-25 09:04:44,806 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 09:04:44,806 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 09:04:44,806 INFO L85 PathProgramCache]: Analyzing trace with hash 744104851, now seen corresponding path program 9 times [2025-04-25 09:04:44,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 09:04:44,806 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376168384] [2025-04-25 09:04:44,806 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-25 09:04:44,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 09:04:44,809 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 23 statements into 4 equivalence classes. [2025-04-25 09:04:44,813 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) and asserted 23 of 23 statements. [2025-04-25 09:04:44,813 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2025-04-25 09:04:44,813 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 09:04:44,924 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 09:04:44,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 09:04:44,924 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376168384] [2025-04-25 09:04:44,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376168384] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 09:04:44,924 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [120304277] [2025-04-25 09:04:44,924 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-25 09:04:44,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 09:04:44,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 09:04:44,926 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-25 09:04:44,926 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-04-25 09:04:44,941 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 23 statements into 4 equivalence classes. [2025-04-25 09:04:44,950 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) and asserted 23 of 23 statements. [2025-04-25 09:04:44,951 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2025-04-25 09:04:44,951 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 09:04:44,951 INFO L256 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 31 conjuncts are in the unsatisfiable core [2025-04-25 09:04:44,952 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 09:04:45,190 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-25 09:04:45,190 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 17 new quantified variables, introduced 36 case distinctions, treesize of input 43 treesize of output 319 [2025-04-25 09:04:45,917 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 09:04:45,917 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-25 09:04:47,801 INFO L325 Elim1Store]: treesize reduction 45, result has 96.3 percent of original size [2025-04-25 09:04:47,801 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 0 disjoint index pairs (out of 153 index pairs), introduced 34 new quantified variables, introduced 153 case distinctions, treesize of input 39 treesize of output 1247 [2025-04-25 09:05:37,134 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 09:05:37,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [120304277] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-25 09:05:37,134 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-25 09:05:37,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14, 13] total 26 [2025-04-25 09:05:37,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737293859] [2025-04-25 09:05:37,135 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-25 09:05:37,135 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2025-04-25 09:05:37,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 09:05:37,136 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2025-04-25 09:05:37,136 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=625, Unknown=0, NotChecked=0, Total=702 [2025-04-25 09:05:37,136 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 09:05:37,136 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 09:05:37,136 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 26 states have internal predecessors, (44), 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) [2025-04-25 09:05:37,136 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 09:05:37,136 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:05:37,136 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-25 09:05:37,136 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:05:37,136 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-25 09:05:37,136 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-04-25 09:05:37,136 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-25 09:05:37,136 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2025-04-25 09:05:37,136 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-04-25 09:05:37,137 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-04-25 09:05:37,137 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2025-04-25 09:05:37,137 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 09:05:37,322 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 09:05:37,322 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:05:37,322 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 09:05:37,322 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:05:37,322 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-25 09:05:37,322 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-25 09:05:37,322 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-25 09:05:37,322 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2025-04-25 09:05:37,322 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-25 09:05:37,322 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-04-25 09:05:37,322 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-04-25 09:05:37,323 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-04-25 09:05:37,336 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-04-25 09:05:37,523 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2025-04-25 09:05:37,523 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-25 09:05:37,523 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 09:05:37,523 INFO L139 ounterexampleChecker]: Examining path program with hash -1872707285, occurence #10 [2025-04-25 09:05:37,523 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-25 09:05:37,524 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2025-04-25 09:05:37,524 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-25 09:05:37,524 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 20 [2025-04-25 09:05:37,524 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 09:05:37,524 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 22 [2025-04-25 09:05:37,524 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-25 09:05:37,524 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-25 09:05:37,524 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 09:05:37,524 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 09:05:37,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1879713192, now seen corresponding path program 10 times [2025-04-25 09:05:37,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 09:05:37,525 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463176419] [2025-04-25 09:05:37,525 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-25 09:05:37,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 09:05:37,528 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 24 statements into 2 equivalence classes. [2025-04-25 09:05:37,531 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-04-25 09:05:37,532 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-04-25 09:05:37,532 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 09:05:37,655 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 21 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 09:05:37,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 09:05:37,655 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463176419] [2025-04-25 09:05:37,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463176419] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 09:05:37,655 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [519679423] [2025-04-25 09:05:37,656 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-25 09:05:37,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 09:05:37,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 09:05:37,659 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-25 09:05:37,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-04-25 09:05:37,679 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 24 statements into 2 equivalence classes. [2025-04-25 09:05:37,691 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-04-25 09:05:37,691 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-04-25 09:05:37,691 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 09:05:37,692 INFO L256 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-04-25 09:05:37,693 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 09:05:37,719 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 21 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 09:05:37,719 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-25 09:05:37,856 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 21 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 09:05:37,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [519679423] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-25 09:05:37,856 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-25 09:05:37,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 24 [2025-04-25 09:05:37,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776592651] [2025-04-25 09:05:37,857 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-25 09:05:37,857 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2025-04-25 09:05:37,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 09:05:37,858 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2025-04-25 09:05:37,858 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=411, Unknown=0, NotChecked=0, Total=600 [2025-04-25 09:05:37,858 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 09:05:37,858 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 09:05:37,858 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 1.56) internal successors, (39), 24 states have internal predecessors, (39), 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) [2025-04-25 09:05:37,858 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 09:05:37,858 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:05:37,858 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-25 09:05:37,859 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:05:37,859 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-25 09:05:37,859 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-04-25 09:05:37,859 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-25 09:05:37,859 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2025-04-25 09:05:37,859 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-04-25 09:05:37,859 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-04-25 09:05:37,859 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2025-04-25 09:05:37,859 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-04-25 09:05:37,859 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 09:05:38,188 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 09:05:38,188 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:05:38,188 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 09:05:38,188 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:05:38,188 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-25 09:05:38,188 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-25 09:05:38,188 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-25 09:05:38,189 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2025-04-25 09:05:38,189 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-25 09:05:38,189 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-04-25 09:05:38,189 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-04-25 09:05:38,189 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-04-25 09:05:38,189 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2025-04-25 09:05:38,194 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-04-25 09:05:38,389 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,12 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 09:05:38,389 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-25 09:05:38,389 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 09:05:38,390 INFO L139 ounterexampleChecker]: Examining path program with hash -1872707285, occurence #11 [2025-04-25 09:05:38,390 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-25 09:05:38,390 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2025-04-25 09:05:38,390 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-25 09:05:38,390 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 20 [2025-04-25 09:05:38,390 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 09:05:38,390 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 22 [2025-04-25 09:05:38,390 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-25 09:05:38,390 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-25 09:05:38,390 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 09:05:38,390 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 09:05:38,390 INFO L85 PathProgramCache]: Analyzing trace with hash 448634805, now seen corresponding path program 11 times [2025-04-25 09:05:38,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 09:05:38,390 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144134341] [2025-04-25 09:05:38,390 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-25 09:05:38,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 09:05:38,393 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 24 statements into 5 equivalence classes. [2025-04-25 09:05:38,396 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) and asserted 24 of 24 statements. [2025-04-25 09:05:38,396 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2025-04-25 09:05:38,396 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 09:05:38,500 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 09:05:38,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 09:05:38,501 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144134341] [2025-04-25 09:05:38,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144134341] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 09:05:38,501 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [905035153] [2025-04-25 09:05:38,501 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-25 09:05:38,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 09:05:38,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 09:05:38,503 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-25 09:05:38,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-04-25 09:05:38,520 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 24 statements into 5 equivalence classes. [2025-04-25 09:05:38,532 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) and asserted 24 of 24 statements. [2025-04-25 09:05:38,532 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2025-04-25 09:05:38,532 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 09:05:38,532 INFO L256 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-04-25 09:05:38,533 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 09:05:38,553 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 09:05:38,553 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-25 09:05:38,733 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 09:05:38,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [905035153] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-25 09:05:38,733 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-25 09:05:38,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 23 [2025-04-25 09:05:38,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372921581] [2025-04-25 09:05:38,734 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-25 09:05:38,734 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-04-25 09:05:38,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 09:05:38,734 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-04-25 09:05:38,734 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=379, Unknown=0, NotChecked=0, Total=552 [2025-04-25 09:05:38,734 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 09:05:38,735 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 09:05:38,735 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 23 states have internal predecessors, (35), 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) [2025-04-25 09:05:38,735 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 09:05:38,735 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:05:38,735 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-25 09:05:38,735 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:05:38,735 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-25 09:05:38,735 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-04-25 09:05:38,735 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-25 09:05:38,735 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2025-04-25 09:05:38,735 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-04-25 09:05:38,735 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-04-25 09:05:38,735 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2025-04-25 09:05:38,735 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-04-25 09:05:38,735 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2025-04-25 09:05:38,735 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 09:05:38,920 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 09:05:38,920 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:05:38,920 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 09:05:38,920 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:05:38,920 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-25 09:05:38,920 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-25 09:05:38,920 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-25 09:05:38,920 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2025-04-25 09:05:38,920 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-25 09:05:38,920 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-04-25 09:05:38,920 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-04-25 09:05:38,920 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-04-25 09:05:38,920 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2025-04-25 09:05:38,921 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-04-25 09:05:38,927 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2025-04-25 09:05:39,122 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2025-04-25 09:05:39,122 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-25 09:05:39,122 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 09:05:39,122 INFO L139 ounterexampleChecker]: Examining path program with hash -1872707285, occurence #12 [2025-04-25 09:05:39,122 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-25 09:05:39,122 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2025-04-25 09:05:39,122 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-25 09:05:39,122 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 21 [2025-04-25 09:05:39,122 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 09:05:39,122 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 23 [2025-04-25 09:05:39,122 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-25 09:05:39,122 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-25 09:05:39,122 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 09:05:39,123 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 09:05:39,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1845617270, now seen corresponding path program 12 times [2025-04-25 09:05:39,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 09:05:39,123 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019400712] [2025-04-25 09:05:39,123 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-04-25 09:05:39,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 09:05:39,125 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 25 statements into 5 equivalence classes. [2025-04-25 09:05:39,133 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) and asserted 25 of 25 statements. [2025-04-25 09:05:39,133 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2025-04-25 09:05:39,133 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 09:05:39,220 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-04-25 09:05:39,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 09:05:39,221 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019400712] [2025-04-25 09:05:39,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019400712] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 09:05:39,221 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1207391053] [2025-04-25 09:05:39,221 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-04-25 09:05:39,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 09:05:39,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 09:05:39,223 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-25 09:05:39,224 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-04-25 09:05:39,240 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 25 statements into 5 equivalence classes. [2025-04-25 09:05:39,250 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) and asserted 25 of 25 statements. [2025-04-25 09:05:39,250 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2025-04-25 09:05:39,250 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 09:05:39,251 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-04-25 09:05:39,253 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 09:05:39,441 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 09:05:39,441 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-25 09:05:39,710 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 12 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 09:05:39,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1207391053] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-25 09:05:39,710 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-25 09:05:39,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 16, 16] total 37 [2025-04-25 09:05:39,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637819971] [2025-04-25 09:05:39,710 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-25 09:05:39,710 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2025-04-25 09:05:39,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 09:05:39,711 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2025-04-25 09:05:39,712 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=259, Invalid=1147, Unknown=0, NotChecked=0, Total=1406 [2025-04-25 09:05:39,712 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 09:05:39,712 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 09:05:39,712 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 1.5789473684210527) internal successors, (60), 37 states have internal predecessors, (60), 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) [2025-04-25 09:05:39,712 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 09:05:39,712 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:05:39,712 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-25 09:05:39,712 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:05:39,712 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-25 09:05:39,712 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-04-25 09:05:39,713 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-25 09:05:39,713 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2025-04-25 09:05:39,713 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-04-25 09:05:39,713 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-04-25 09:05:39,713 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2025-04-25 09:05:39,713 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-04-25 09:05:39,714 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2025-04-25 09:05:39,714 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2025-04-25 09:05:39,714 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 09:05:40,314 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 09:05:40,314 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:05:40,314 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 09:05:40,314 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:05:40,315 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-25 09:05:40,315 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-25 09:05:40,315 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-25 09:05:40,315 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2025-04-25 09:05:40,315 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-25 09:05:40,315 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-04-25 09:05:40,315 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-04-25 09:05:40,315 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-04-25 09:05:40,315 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2025-04-25 09:05:40,315 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-04-25 09:05:40,315 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2025-04-25 09:05:40,320 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2025-04-25 09:05:40,515 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2025-04-25 09:05:40,515 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-25 09:05:40,516 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 09:05:40,516 INFO L139 ounterexampleChecker]: Examining path program with hash -1872707285, occurence #13 [2025-04-25 09:05:40,516 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-25 09:05:40,516 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 20 [2025-04-25 09:05:40,516 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-25 09:05:40,516 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 23 [2025-04-25 09:05:40,516 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 09:05:40,516 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 25 [2025-04-25 09:05:40,516 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-25 09:05:40,516 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-25 09:05:40,516 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 09:05:40,516 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 09:05:40,516 INFO L85 PathProgramCache]: Analyzing trace with hash 377785942, now seen corresponding path program 13 times [2025-04-25 09:05:40,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 09:05:40,516 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149730051] [2025-04-25 09:05:40,516 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-04-25 09:05:40,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 09:05:40,518 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-04-25 09:05:40,520 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-04-25 09:05:40,520 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 09:05:40,520 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 09:05:40,660 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 09:05:40,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 09:05:40,660 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149730051] [2025-04-25 09:05:40,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149730051] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 09:05:40,660 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2042705164] [2025-04-25 09:05:40,660 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-04-25 09:05:40,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 09:05:40,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 09:05:40,663 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-25 09:05:40,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-04-25 09:05:40,680 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-04-25 09:05:40,698 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-04-25 09:05:40,698 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 09:05:40,698 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 09:05:40,698 INFO L256 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 37 conjuncts are in the unsatisfiable core [2025-04-25 09:05:40,699 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 09:06:41,761 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-25 09:06:41,762 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 23 new quantified variables, introduced 66 case distinctions, treesize of input 55 treesize of output 568 [2025-04-25 09:06:43,167 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 09:06:43,167 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-25 09:06:48,961 WARN L286 SmtUtils]: Spent 5.63s on a formula simplification. DAG size of input: 1153 DAG size of output: 1117 (called from [L 323] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2025-04-25 09:06:48,962 INFO L325 Elim1Store]: treesize reduction 60, result has 97.3 percent of original size [2025-04-25 09:06:48,963 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 24 select indices, 24 select index equivalence classes, 0 disjoint index pairs (out of 276 index pairs), introduced 46 new quantified variables, introduced 276 case distinctions, treesize of input 51 treesize of output 2240 [2025-04-25 09:11:03,479 WARN L249 Executor]: External (MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) stderr output: (error "out of memory") [2025-04-25 09:11:03,480 WARN L310 FreeRefinementEngine]: Global settings require throwing the following exception [2025-04-25 09:11:03,481 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 101 [2025-04-25 09:11:03,488 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2025-04-25 09:11:03,681 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2025-04-25 09:11:03,688 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2025-04-25 09:11:03,689 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:277) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.assertTerm(Scriptor.java:147) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.assertTerm(DiffWrapperScript.java:111) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.assertTerm(WrapperScript.java:158) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.simplify(SimplifyDDA2.java:583) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:245) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:318) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify(QuantifierPusher.java:726) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:142) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:223) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:115) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:99) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:305) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:241) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:139) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:191) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:223) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:115) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:99) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:305) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:285) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:56) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:234) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:416) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:395) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:267) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:325) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:181) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderCegarLoop.isCounterexampleFeasible(PartialOrderCegarLoop.java:320) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:349) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:331) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:427) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:315) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:239) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:132) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 62 more [2025-04-25 09:11:03,694 INFO L158 Benchmark]: Toolchain (without parser) took 396203.06ms. Allocated memory was 167.8MB in the beginning and 1.9GB in the end (delta: 1.7GB). Free memory was 100.2MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 1.1GB. Max. memory is 16.0GB. [2025-04-25 09:11:03,694 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.19ms. Allocated memory is still 167.8MB. Free memory is still 101.1MB. There was no memory consumed. Max. memory is 16.0GB. [2025-04-25 09:11:03,694 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.35ms. Allocated memory is still 167.8MB. Free memory was 100.2MB in the beginning and 98.2MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.0GB. [2025-04-25 09:11:03,695 INFO L158 Benchmark]: Boogie Preprocessor took 21.01ms. Allocated memory is still 167.8MB. Free memory was 98.2MB in the beginning and 97.2MB in the end (delta: 971.0kB). There was no memory consumed. Max. memory is 16.0GB. [2025-04-25 09:11:03,695 INFO L158 Benchmark]: RCFGBuilder took 218.97ms. Allocated memory is still 167.8MB. Free memory was 97.2MB in the beginning and 86.9MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.0GB. [2025-04-25 09:11:03,695 INFO L158 Benchmark]: TraceAbstraction took 395925.69ms. Allocated memory was 167.8MB in the beginning and 1.9GB in the end (delta: 1.7GB). Free memory was 85.9MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 1.1GB. Max. memory is 16.0GB. [2025-04-25 09:11:03,698 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.19ms. Allocated memory is still 167.8MB. Free memory is still 101.1MB. There was no memory consumed. Max. memory is 16.0GB. * Boogie Procedure Inliner took 32.35ms. Allocated memory is still 167.8MB. Free memory was 100.2MB in the beginning and 98.2MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.0GB. * Boogie Preprocessor took 21.01ms. Allocated memory is still 167.8MB. Free memory was 98.2MB in the beginning and 97.2MB in the end (delta: 971.0kB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 218.97ms. Allocated memory is still 167.8MB. Free memory was 97.2MB in the beginning and 86.9MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.0GB. * TraceAbstraction took 395925.69ms. Allocated memory was 167.8MB in the beginning and 1.9GB in the end (delta: 1.7GB). Free memory was 85.9MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 1.1GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...