/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 NECESSARY_AND_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/chl/word-subst.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-dev-42d8767-m [2025-04-25 11:20:40,984 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-25 11:20:41,027 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 11:20:41,031 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-25 11:20:41,031 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-25 11:20:41,053 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-25 11:20:41,053 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-25 11:20:41,053 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-25 11:20:41,054 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-25 11:20:41,054 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-25 11:20:41,054 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-25 11:20:41,054 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-25 11:20:41,054 INFO L153 SettingsManager]: * Use SBE=true [2025-04-25 11:20:41,054 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-25 11:20:41,054 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-25 11:20:41,054 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-25 11:20:41,054 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-25 11:20:41,054 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-25 11:20:41,054 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-25 11:20:41,054 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-25 11:20:41,054 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-25 11:20:41,055 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-25 11:20:41,055 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-25 11:20:41,055 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-25 11:20:41,055 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-25 11:20:41,055 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-25 11:20:41,055 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-25 11:20:41,055 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-25 11:20:41,055 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-25 11:20:41,055 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-25 11:20:41,055 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-25 11:20:41,055 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-25 11:20:41,055 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-25 11:20:41,055 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-25 11:20:41,055 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-25 11:20:41,055 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-25 11:20:41,055 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-25 11:20:41,056 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-25 11:20:41,056 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-25 11:20:41,056 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-04-25 11:20:41,056 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-25 11:20:41,056 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-25 11:20:41,056 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-04-25 11:20:41,056 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-25 11:20:41,056 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-04-25 11:20:41,056 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-04-25 11:20:41,056 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-04-25 11:20:41,056 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 -> NECESSARY_AND_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 11:20:41,277 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-25 11:20:41,284 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-25 11:20:41,286 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-25 11:20:41,287 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-04-25 11:20:41,288 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-04-25 11:20:41,289 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/word-subst.wvr.bpl [2025-04-25 11:20:41,289 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/word-subst.wvr.bpl' [2025-04-25 11:20:41,316 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-25 11:20:41,318 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-04-25 11:20:41,318 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-25 11:20:41,319 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-25 11:20:41,319 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-25 11:20:41,326 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.04 11:20:41" (1/1) ... [2025-04-25 11:20:41,346 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.04 11:20:41" (1/1) ... [2025-04-25 11:20:41,356 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-04-25 11:20:41,357 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-25 11:20:41,359 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-25 11:20:41,359 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-25 11:20:41,359 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-25 11:20:41,363 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.04 11:20:41" (1/1) ... [2025-04-25 11:20:41,364 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.04 11:20:41" (1/1) ... [2025-04-25 11:20:41,365 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.04 11:20:41" (1/1) ... [2025-04-25 11:20:41,365 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.04 11:20:41" (1/1) ... [2025-04-25 11:20:41,369 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.04 11:20:41" (1/1) ... [2025-04-25 11:20:41,369 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.04 11:20:41" (1/1) ... [2025-04-25 11:20:41,373 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.04 11:20:41" (1/1) ... [2025-04-25 11:20:41,376 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.04 11:20:41" (1/1) ... [2025-04-25 11:20:41,376 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.04 11:20:41" (1/1) ... [2025-04-25 11:20:41,389 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-25 11:20:41,389 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-25 11:20:41,389 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-25 11:20:41,392 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-25 11:20:41,393 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.04 11:20:41" (1/1) ... [2025-04-25 11:20:41,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-25 11:20:41,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 11:20:41,419 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 11:20:41,421 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 11:20:41,443 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-04-25 11:20:41,443 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-25 11:20:41,444 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-25 11:20:41,444 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-04-25 11:20:41,444 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-25 11:20:41,444 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-25 11:20:41,444 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-04-25 11:20:41,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-25 11:20:41,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-25 11:20:41,444 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2025-04-25 11:20:41,444 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-04-25 11:20:41,444 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-04-25 11:20:41,445 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 11:20:41,483 INFO L234 CfgBuilder]: Building ICFG [2025-04-25 11:20:41,484 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-25 11:20:41,597 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-25 11:20:41,597 INFO L283 CfgBuilder]: Performing block encoding [2025-04-25 11:20:41,635 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-25 11:20:41,635 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2025-04-25 11:20:41,636 INFO L201 PluginConnector]: Adding new model word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.04 11:20:41 BoogieIcfgContainer [2025-04-25 11:20:41,636 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-25 11:20:41,637 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-25 11:20:41,637 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-25 11:20:41,641 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-25 11:20:41,641 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.04 11:20:41" (1/2) ... [2025-04-25 11:20:41,641 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@195542fd and model type word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.04 11:20:41, skipping insertion in model container [2025-04-25 11:20:41,641 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.04 11:20:41" (2/2) ... [2025-04-25 11:20:41,642 INFO L128 eAbstractionObserver]: Analyzing ICFG word-subst.wvr.bpl [2025-04-25 11:20:41,653 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-25 11:20:41,655 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG word-subst.wvr.bpl that has 4 procedures, 23 locations, 25 edges, 1 initial locations, 3 loop locations, and 1 error locations. [2025-04-25 11:20:41,655 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-25 11:20:41,700 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-04-25 11:20:41,737 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-25 11:20:41,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-25 11:20:41,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 11:20:41,741 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 11:20:41,743 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 11:20:41,806 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-04-25 11:20:41,822 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-04-25 11:20:41,829 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;@5c287c14, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-25 11:20:41,829 INFO L341 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-04-25 11:20:41,903 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-25 11:20:41,903 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 11:20:41,903 INFO L139 ounterexampleChecker]: Examining path program with hash 1172056996, occurence #1 [2025-04-25 11:20:41,904 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-25 11:20:41,904 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 11:20:41,908 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 11:20:41,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1303980192, now seen corresponding path program 1 times [2025-04-25 11:20:41,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 11:20:41,914 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049154564] [2025-04-25 11:20:41,914 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-25 11:20:41,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 11:20:41,962 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-04-25 11:20:41,979 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-04-25 11:20:41,980 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 11:20:41,980 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 11:20:42,229 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 11:20:42,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 11:20:42,230 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049154564] [2025-04-25 11:20:42,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049154564] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-25 11:20:42,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-25 11:20:42,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-25 11:20:42,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017442518] [2025-04-25 11:20:42,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-25 11:20:42,237 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-25 11:20:42,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 11:20:42,268 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-25 11:20:42,269 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-04-25 11:20:42,269 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 11:20:42,270 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 11:20:42,271 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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 11:20:42,271 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 11:20:42,427 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 11:20:42,427 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-25 11:20:42,427 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-25 11:20:42,427 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 11:20:42,428 INFO L139 ounterexampleChecker]: Examining path program with hash 1890377733, occurence #1 [2025-04-25 11:20:42,428 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-25 11:20:42,428 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 11:20:42,428 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 11:20:42,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1766499660, now seen corresponding path program 1 times [2025-04-25 11:20:42,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 11:20:42,428 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189663352] [2025-04-25 11:20:42,428 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-25 11:20:42,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 11:20:42,434 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-04-25 11:20:42,443 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-04-25 11:20:42,444 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 11:20:42,444 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 11:20:42,679 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 11:20:42,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 11:20:42,680 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189663352] [2025-04-25 11:20:42,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189663352] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-25 11:20:42,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-25 11:20:42,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-04-25 11:20:42,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737626770] [2025-04-25 11:20:42,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-25 11:20:42,682 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-04-25 11:20:42,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 11:20:42,682 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-04-25 11:20:42,683 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-04-25 11:20:42,683 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 11:20:42,684 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 11:20:42,684 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 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 11:20:42,684 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 11:20:42,684 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 11:20:42,892 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 11:20:42,893 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-25 11:20:42,893 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-25 11:20:42,893 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-25 11:20:42,893 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 11:20:42,893 INFO L139 ounterexampleChecker]: Examining path program with hash 1890377733, occurence #2 [2025-04-25 11:20:42,893 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-25 11:20:42,893 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-25 11:20:42,894 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 11:20:42,894 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2025-04-25 11:20:42,894 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 11:20:42,894 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-04-25 11:20:42,894 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 11:20:42,894 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2025-04-25 11:20:42,894 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-25 11:20:42,894 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 12 [2025-04-25 11:20:42,894 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-25 11:20:42,894 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 15 [2025-04-25 11:20:42,894 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 11:20:42,894 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-25 11:20:42,895 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 11:20:42,895 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 11:20:42,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1099640677, now seen corresponding path program 1 times [2025-04-25 11:20:42,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 11:20:42,895 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417035913] [2025-04-25 11:20:42,895 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-25 11:20:42,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 11:20:42,899 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-04-25 11:20:42,904 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-04-25 11:20:42,904 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 11:20:42,904 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 11:20:43,032 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 11:20:43,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 11:20:43,033 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417035913] [2025-04-25 11:20:43,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417035913] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-25 11:20:43,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-25 11:20:43,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-04-25 11:20:43,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979009033] [2025-04-25 11:20:43,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-25 11:20:43,033 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-04-25 11:20:43,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 11:20:43,034 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-04-25 11:20:43,034 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-04-25 11:20:43,034 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 11:20:43,034 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 11:20:43,034 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 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 11:20:43,034 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 11:20:43,034 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-04-25 11:20:43,034 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 11:20:43,231 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 11:20:43,231 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-25 11:20:43,231 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-25 11:20:43,231 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-25 11:20:43,231 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-25 11:20:43,232 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 11:20:43,232 INFO L139 ounterexampleChecker]: Examining path program with hash -334756281, occurence #1 [2025-04-25 11:20:43,232 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-25 11:20:43,232 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 11:20:43,232 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 11:20:43,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1541247926, now seen corresponding path program 1 times [2025-04-25 11:20:43,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 11:20:43,232 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408215938] [2025-04-25 11:20:43,232 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-25 11:20:43,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 11:20:43,235 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-04-25 11:20:43,239 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-04-25 11:20:43,239 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 11:20:43,239 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 11:20:43,338 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 11:20:43,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 11:20:43,338 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408215938] [2025-04-25 11:20:43,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408215938] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-25 11:20:43,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-25 11:20:43,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-04-25 11:20:43,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490609245] [2025-04-25 11:20:43,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-25 11:20:43,339 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-04-25 11:20:43,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 11:20:43,339 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-04-25 11:20:43,339 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-04-25 11:20:43,339 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 11:20:43,339 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 11:20:43,339 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 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 11:20:43,339 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 11:20:43,339 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-04-25 11:20:43,339 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-04-25 11:20:43,339 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 11:20:43,487 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 11:20:43,487 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-25 11:20:43,487 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-25 11:20:43,488 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:20:43,488 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-25 11:20:43,488 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-25 11:20:43,488 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 11:20:43,488 INFO L139 ounterexampleChecker]: Examining path program with hash -1378658475, occurence #1 [2025-04-25 11:20:43,488 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-25 11:20:43,488 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 11:20:43,488 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 11:20:43,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1415196082, now seen corresponding path program 1 times [2025-04-25 11:20:43,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 11:20:43,489 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946269572] [2025-04-25 11:20:43,489 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-25 11:20:43,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 11:20:43,492 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-04-25 11:20:43,494 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-04-25 11:20:43,494 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 11:20:43,494 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 11:20:43,626 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 11:20:43,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 11:20:43,626 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946269572] [2025-04-25 11:20:43,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946269572] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-25 11:20:43,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-25 11:20:43,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-04-25 11:20:43,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001169789] [2025-04-25 11:20:43,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-25 11:20:43,627 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-04-25 11:20:43,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 11:20:43,627 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-04-25 11:20:43,627 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-04-25 11:20:43,627 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 11:20:43,627 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 11:20:43,627 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 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 11:20:43,628 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 11:20:43,628 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-04-25 11:20:43,628 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-04-25 11:20:43,628 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:20:43,628 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 11:20:43,869 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 11:20:43,869 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-25 11:20:43,869 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-25 11:20:43,869 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:20:43,871 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-25 11:20:43,871 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-04-25 11:20:43,871 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-25 11:20:43,871 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 11:20:43,871 INFO L139 ounterexampleChecker]: Examining path program with hash -1472718500, occurence #1 [2025-04-25 11:20:43,871 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-25 11:20:43,871 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 11:20:43,872 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 11:20:43,872 INFO L85 PathProgramCache]: Analyzing trace with hash -456731637, now seen corresponding path program 1 times [2025-04-25 11:20:43,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 11:20:43,872 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374089670] [2025-04-25 11:20:43,872 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-25 11:20:43,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 11:20:43,878 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-04-25 11:20:43,882 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-04-25 11:20:43,882 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 11:20:43,882 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 11:20:43,951 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 11:20:43,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 11:20:43,952 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374089670] [2025-04-25 11:20:43,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374089670] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-25 11:20:43,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-25 11:20:43,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-04-25 11:20:43,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96685811] [2025-04-25 11:20:43,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-25 11:20:43,952 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-04-25 11:20:43,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 11:20:43,952 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-04-25 11:20:43,953 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-04-25 11:20:43,953 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 11:20:43,953 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 11:20:43,953 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 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 11:20:43,953 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 11:20:43,953 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-04-25 11:20:43,953 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-04-25 11:20:43,953 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:20:43,953 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-25 11:20:43,953 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 11:20:44,116 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 11:20:44,117 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-25 11:20:44,117 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-25 11:20:44,117 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:20:44,117 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-25 11:20:44,117 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:20:44,117 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-04-25 11:20:44,117 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-25 11:20:44,117 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 11:20:44,117 INFO L139 ounterexampleChecker]: Examining path program with hash 1413861742, occurence #1 [2025-04-25 11:20:44,118 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-25 11:20:44,118 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 11:20:44,118 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 11:20:44,118 INFO L85 PathProgramCache]: Analyzing trace with hash -2052018704, now seen corresponding path program 1 times [2025-04-25 11:20:44,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 11:20:44,118 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075083919] [2025-04-25 11:20:44,118 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-25 11:20:44,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 11:20:44,122 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-04-25 11:20:44,125 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-04-25 11:20:44,125 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 11:20:44,127 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 11:20:44,195 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 11:20:44,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 11:20:44,195 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075083919] [2025-04-25 11:20:44,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075083919] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-25 11:20:44,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-25 11:20:44,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-04-25 11:20:44,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889751286] [2025-04-25 11:20:44,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-25 11:20:44,196 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-04-25 11:20:44,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 11:20:44,196 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-04-25 11:20:44,196 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-04-25 11:20:44,196 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 11:20:44,196 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 11:20:44,196 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 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 11:20:44,196 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 11:20:44,196 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-04-25 11:20:44,196 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-04-25 11:20:44,196 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:20:44,196 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-25 11:20:44,196 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:20:44,197 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 11:20:44,342 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 11:20:44,342 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-25 11:20:44,342 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-25 11:20:44,342 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:20:44,342 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-25 11:20:44,342 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:20:44,343 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:20:44,343 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-04-25 11:20:44,343 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-25 11:20:44,343 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 11:20:44,343 INFO L139 ounterexampleChecker]: Examining path program with hash 1820855087, occurence #1 [2025-04-25 11:20:44,343 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-25 11:20:44,343 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 11:20:44,343 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 11:20:44,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1339526035, now seen corresponding path program 1 times [2025-04-25 11:20:44,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 11:20:44,343 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994153470] [2025-04-25 11:20:44,343 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-25 11:20:44,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 11:20:44,346 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-04-25 11:20:44,366 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-04-25 11:20:44,366 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 11:20:44,366 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 11:20:45,073 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 11:20:45,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 11:20:45,073 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994153470] [2025-04-25 11:20:45,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994153470] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 11:20:45,073 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1011689401] [2025-04-25 11:20:45,074 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-25 11:20:45,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 11:20:45,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 11:20:45,076 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 11:20:45,077 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 11:20:45,098 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-04-25 11:20:45,107 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-04-25 11:20:45,107 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 11:20:45,107 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 11:20:45,109 INFO L256 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 27 conjuncts are in the unsatisfiable core [2025-04-25 11:20:45,113 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 11:20:45,271 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 124 treesize of output 102 [2025-04-25 11:20:45,457 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 208 treesize of output 178 [2025-04-25 11:20:45,465 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 178 treesize of output 148 [2025-04-25 11:20:46,303 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 11:20:46,303 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-25 11:20:47,081 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-25 11:20:47,081 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 159 [2025-04-25 11:20:47,367 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-25 11:20:47,367 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 106 treesize of output 100 [2025-04-25 11:20:47,375 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-25 11:20:47,375 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 92 treesize of output 86 [2025-04-25 11:20:47,462 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 11:20:47,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1011689401] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-25 11:20:47,462 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-25 11:20:47,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2025-04-25 11:20:47,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831800292] [2025-04-25 11:20:47,462 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-25 11:20:47,462 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-04-25 11:20:47,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 11:20:47,463 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-04-25 11:20:47,463 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2025-04-25 11:20:47,463 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 11:20:47,463 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 11:20:47,463 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 1.9583333333333333) internal successors, (47), 24 states have internal predecessors, (47), 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 11:20:47,463 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 11:20:47,463 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-04-25 11:20:47,463 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-04-25 11:20:47,463 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:20:47,463 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-25 11:20:47,463 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:20:47,463 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:20:47,464 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 11:20:49,447 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 11:20:49,447 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-25 11:20:49,447 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-25 11:20:49,447 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:20:49,447 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-25 11:20:49,447 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:20:49,447 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:20:49,448 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-04-25 11:20:49,454 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 11:20:49,652 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2025-04-25 11:20:49,652 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-25 11:20:49,652 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 11:20:49,652 INFO L139 ounterexampleChecker]: Examining path program with hash 1820855087, occurence #2 [2025-04-25 11:20:49,652 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-25 11:20:49,652 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-25 11:20:49,652 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 11:20:49,652 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2025-04-25 11:20:49,652 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 11:20:49,652 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-04-25 11:20:49,652 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 11:20:49,652 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2025-04-25 11:20:49,652 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-25 11:20:49,652 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 15 [2025-04-25 11:20:49,652 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-25 11:20:49,653 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2025-04-25 11:20:49,653 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 11:20:49,653 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-25 11:20:49,653 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 11:20:49,653 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 11:20:49,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1450921164, now seen corresponding path program 2 times [2025-04-25 11:20:49,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 11:20:49,653 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605477965] [2025-04-25 11:20:49,653 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-25 11:20:49,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 11:20:49,659 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 21 statements into 2 equivalence classes. [2025-04-25 11:20:49,669 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 21 of 21 statements. [2025-04-25 11:20:49,669 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-25 11:20:49,669 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 11:20:49,804 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 11:20:49,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 11:20:49,804 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605477965] [2025-04-25 11:20:49,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605477965] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 11:20:49,804 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [549028056] [2025-04-25 11:20:49,804 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-25 11:20:49,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 11:20:49,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 11:20:49,806 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 11:20:49,808 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 11:20:49,830 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 21 statements into 2 equivalence classes. [2025-04-25 11:20:49,839 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 21 of 21 statements. [2025-04-25 11:20:49,839 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-25 11:20:49,839 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 11:20:49,840 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-04-25 11:20:49,841 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 11:20:49,873 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 59 [2025-04-25 11:20:49,875 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 47 [2025-04-25 11:20:50,001 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 11:20:50,001 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-25 11:20:50,073 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 64 [2025-04-25 11:20:50,076 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 52 [2025-04-25 11:20:50,106 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 11:20:50,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [549028056] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-25 11:20:50,107 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-25 11:20:50,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 16 [2025-04-25 11:20:50,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100370398] [2025-04-25 11:20:50,107 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-25 11:20:50,107 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-04-25 11:20:50,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 11:20:50,107 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-04-25 11:20:50,108 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2025-04-25 11:20:50,108 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 11:20:50,108 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 11:20:50,108 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 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 11:20:50,108 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 11:20:50,108 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-04-25 11:20:50,108 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-04-25 11:20:50,108 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:20:50,108 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-25 11:20:50,108 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:20:50,108 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:20:50,108 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2025-04-25 11:20:50,108 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 11:20:50,435 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 11:20:50,435 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-25 11:20:50,435 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-25 11:20:50,435 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:20:50,435 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-25 11:20:50,435 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:20:50,435 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:20:50,435 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-04-25 11:20:50,435 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-04-25 11:20:50,440 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 11:20:50,635 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 11:20:50,636 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-25 11:20:50,636 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 11:20:50,636 INFO L139 ounterexampleChecker]: Examining path program with hash -404278927, occurence #1 [2025-04-25 11:20:50,636 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-25 11:20:50,636 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 11:20:50,636 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 11:20:50,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1892528413, now seen corresponding path program 3 times [2025-04-25 11:20:50,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 11:20:50,636 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964081230] [2025-04-25 11:20:50,636 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-25 11:20:50,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 11:20:50,639 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 21 statements into 2 equivalence classes. [2025-04-25 11:20:50,644 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 21 of 21 statements. [2025-04-25 11:20:50,645 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-04-25 11:20:50,645 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 11:20:50,782 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 11:20:50,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 11:20:50,782 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964081230] [2025-04-25 11:20:50,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964081230] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 11:20:50,782 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1589410524] [2025-04-25 11:20:50,782 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-25 11:20:50,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 11:20:50,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 11:20:50,784 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 11:20:50,786 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 11:20:50,810 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 21 statements into 2 equivalence classes. [2025-04-25 11:20:50,820 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 21 of 21 statements. [2025-04-25 11:20:50,820 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-04-25 11:20:50,820 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 11:20:50,820 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-04-25 11:20:50,821 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 11:20:50,855 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 59 [2025-04-25 11:20:50,858 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 47 [2025-04-25 11:20:50,981 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 11:20:50,981 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-25 11:20:51,048 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 64 [2025-04-25 11:20:51,051 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 52 [2025-04-25 11:20:51,084 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 11:20:51,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1589410524] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-25 11:20:51,084 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-25 11:20:51,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 17 [2025-04-25 11:20:51,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381845561] [2025-04-25 11:20:51,084 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-25 11:20:51,084 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-04-25 11:20:51,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 11:20:51,085 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-04-25 11:20:51,085 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2025-04-25 11:20:51,085 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 11:20:51,085 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 11:20:51,085 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 17 states have internal predecessors, (46), 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 11:20:51,085 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 11:20:51,085 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-04-25 11:20:51,085 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-04-25 11:20:51,085 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:20:51,085 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-25 11:20:51,085 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:20:51,085 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:20:51,085 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2025-04-25 11:20:51,085 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-04-25 11:20:51,085 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 11:20:51,493 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 11:20:51,494 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-25 11:20:51,494 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-25 11:20:51,494 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:20:51,494 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-25 11:20:51,494 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:20:51,494 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:20:51,494 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2025-04-25 11:20:51,494 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-04-25 11:20:51,494 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-04-25 11:20:51,499 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 11:20:51,694 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 11:20:51,695 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-25 11:20:51,695 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 11:20:51,695 INFO L139 ounterexampleChecker]: Examining path program with hash -1835655733, occurence #1 [2025-04-25 11:20:51,695 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-25 11:20:51,695 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 11:20:51,695 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 11:20:51,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1063915595, now seen corresponding path program 4 times [2025-04-25 11:20:51,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 11:20:51,695 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934038514] [2025-04-25 11:20:51,695 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-25 11:20:51,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 11:20:51,698 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 21 statements into 2 equivalence classes. [2025-04-25 11:20:51,703 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-04-25 11:20:51,703 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-04-25 11:20:51,703 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 11:20:52,076 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 11:20:52,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 11:20:52,076 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934038514] [2025-04-25 11:20:52,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934038514] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 11:20:52,076 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [82894587] [2025-04-25 11:20:52,076 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-25 11:20:52,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 11:20:52,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 11:20:52,078 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 11:20:52,079 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 11:20:52,107 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 21 statements into 2 equivalence classes. [2025-04-25 11:20:52,115 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-04-25 11:20:52,115 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-04-25 11:20:52,115 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 11:20:52,116 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 33 conjuncts are in the unsatisfiable core [2025-04-25 11:20:52,117 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 11:20:52,250 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 101 [2025-04-25 11:20:52,394 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-25 11:20:52,394 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 64 [2025-04-25 11:20:52,402 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 47 [2025-04-25 11:20:52,714 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 11:20:52,714 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-25 11:20:53,477 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-25 11:20:53,477 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 136 treesize of output 124 [2025-04-25 11:20:53,640 INFO L172 IndexEqualityManager]: detected equality via solver [2025-04-25 11:20:53,645 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-25 11:20:53,645 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 42 [2025-04-25 11:20:53,647 INFO L172 IndexEqualityManager]: detected equality via solver [2025-04-25 11:20:53,655 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-25 11:20:53,655 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 44 [2025-04-25 11:20:53,686 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 11:20:53,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [82894587] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-25 11:20:53,686 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-25 11:20:53,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 12] total 26 [2025-04-25 11:20:53,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743648088] [2025-04-25 11:20:53,686 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-25 11:20:53,686 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2025-04-25 11:20:53,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 11:20:53,687 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2025-04-25 11:20:53,687 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=562, Unknown=0, NotChecked=0, Total=650 [2025-04-25 11:20:53,687 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 11:20:53,687 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 11:20:53,687 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 1.9230769230769231) internal successors, (50), 26 states have internal predecessors, (50), 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 11:20:53,687 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 11:20:53,687 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-04-25 11:20:53,687 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-04-25 11:20:53,687 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:20:53,687 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-25 11:20:53,687 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:20:53,687 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:20:53,687 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2025-04-25 11:20:53,687 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2025-04-25 11:20:53,687 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-04-25 11:20:53,687 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 11:20:54,716 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 11:20:54,716 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-25 11:20:54,716 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-25 11:20:54,716 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:20:54,716 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-25 11:20:54,716 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:20:54,716 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:20:54,716 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2025-04-25 11:20:54,716 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-04-25 11:20:54,716 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-04-25 11:20:54,716 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-04-25 11:20:54,722 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 11:20:54,916 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,SelfDestructingSolverStorable10 [2025-04-25 11:20:54,917 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-25 11:20:54,917 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 11:20:54,917 INFO L139 ounterexampleChecker]: Examining path program with hash -1929715758, occurence #1 [2025-04-25 11:20:54,917 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-25 11:20:54,917 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 11:20:54,917 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 11:20:54,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1843028868, now seen corresponding path program 5 times [2025-04-25 11:20:54,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 11:20:54,917 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516018930] [2025-04-25 11:20:54,917 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-25 11:20:54,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 11:20:54,920 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 22 statements into 2 equivalence classes. [2025-04-25 11:20:54,928 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 22 of 22 statements. [2025-04-25 11:20:54,928 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-25 11:20:54,928 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 11:20:55,086 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 11:20:55,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 11:20:55,086 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516018930] [2025-04-25 11:20:55,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516018930] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 11:20:55,086 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729859639] [2025-04-25 11:20:55,086 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-25 11:20:55,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 11:20:55,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 11:20:55,088 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 11:20:55,090 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 11:20:55,112 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 22 statements into 2 equivalence classes. [2025-04-25 11:20:55,121 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 22 of 22 statements. [2025-04-25 11:20:55,121 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-25 11:20:55,121 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 11:20:55,121 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-04-25 11:20:55,122 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 11:20:55,176 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 25 [2025-04-25 11:20:55,210 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 29 [2025-04-25 11:20:55,211 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 23 [2025-04-25 11:20:55,267 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 11:20:55,267 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-25 11:20:55,302 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-25 11:20:55,302 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2025-04-25 11:20:55,329 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-25 11:20:55,329 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 29 [2025-04-25 11:20:55,334 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-25 11:20:55,334 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 29 [2025-04-25 11:20:55,355 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 11:20:55,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [729859639] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-25 11:20:55,356 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-25 11:20:55,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 16 [2025-04-25 11:20:55,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931117493] [2025-04-25 11:20:55,356 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-25 11:20:55,356 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-04-25 11:20:55,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 11:20:55,356 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-04-25 11:20:55,357 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2025-04-25 11:20:55,357 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 11:20:55,357 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 11:20:55,357 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 1.875) internal successors, (30), 16 states have internal predecessors, (30), 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 11:20:55,357 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 11:20:55,357 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-04-25 11:20:55,357 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-04-25 11:20:55,357 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:20:55,357 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-25 11:20:55,357 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:20:55,357 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:20:55,357 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2025-04-25 11:20:55,357 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2025-04-25 11:20:55,357 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-04-25 11:20:55,357 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-04-25 11:20:55,357 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 11:20:55,765 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 11:20:55,765 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-25 11:20:55,765 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-25 11:20:55,765 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:20:55,765 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-25 11:20:55,766 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:20:55,766 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:20:55,766 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2025-04-25 11:20:55,766 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-04-25 11:20:55,766 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-04-25 11:20:55,766 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-04-25 11:20:55,766 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-25 11:20:55,771 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 11:20:55,970 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2025-04-25 11:20:55,970 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-25 11:20:55,970 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 11:20:55,970 INFO L139 ounterexampleChecker]: Examining path program with hash 1413861742, occurence #2 [2025-04-25 11:20:55,970 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-25 11:20:55,970 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-25 11:20:55,970 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 11:20:55,970 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2025-04-25 11:20:55,970 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 11:20:55,970 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-04-25 11:20:55,970 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 11:20:55,970 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2025-04-25 11:20:55,970 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-25 11:20:55,970 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2025-04-25 11:20:55,970 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 11:20:55,970 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-25 11:20:55,971 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 11:20:55,971 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 11:20:55,971 INFO L85 PathProgramCache]: Analyzing trace with hash 247741801, now seen corresponding path program 6 times [2025-04-25 11:20:55,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 11:20:55,971 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612573814] [2025-04-25 11:20:55,971 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-04-25 11:20:55,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 11:20:55,974 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 22 statements into 2 equivalence classes. [2025-04-25 11:20:55,983 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) and asserted 22 of 22 statements. [2025-04-25 11:20:55,983 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2025-04-25 11:20:55,983 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 11:20:56,148 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 11:20:56,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 11:20:56,148 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612573814] [2025-04-25 11:20:56,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612573814] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 11:20:56,148 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [850168385] [2025-04-25 11:20:56,148 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-04-25 11:20:56,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 11:20:56,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 11:20:56,150 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 11:20:56,151 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 11:20:56,170 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 22 statements into 2 equivalence classes. [2025-04-25 11:20:56,179 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) and asserted 22 of 22 statements. [2025-04-25 11:20:56,179 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2025-04-25 11:20:56,179 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 11:20:56,180 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-04-25 11:20:56,181 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 11:20:56,214 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2025-04-25 11:20:56,241 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 26 [2025-04-25 11:20:56,243 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2025-04-25 11:20:56,284 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 11:20:56,284 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-25 11:20:56,345 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-25 11:20:56,345 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 33 [2025-04-25 11:20:56,380 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-25 11:20:56,380 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 31 [2025-04-25 11:20:56,386 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-25 11:20:56,386 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 31 [2025-04-25 11:20:56,417 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 11:20:56,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [850168385] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-25 11:20:56,418 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-25 11:20:56,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 18 [2025-04-25 11:20:56,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838023148] [2025-04-25 11:20:56,418 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-25 11:20:56,418 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-04-25 11:20:56,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 11:20:56,419 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-04-25 11:20:56,419 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2025-04-25 11:20:56,419 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 11:20:56,419 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 11:20:56,419 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.7777777777777777) internal successors, (32), 18 states have internal predecessors, (32), 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 11:20:56,419 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 11:20:56,419 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-04-25 11:20:56,419 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-04-25 11:20:56,419 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:20:56,419 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-25 11:20:56,419 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:20:56,419 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:20:56,419 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2025-04-25 11:20:56,419 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2025-04-25 11:20:56,419 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2025-04-25 11:20:56,419 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-04-25 11:20:56,419 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-25 11:20:56,419 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 11:20:56,701 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 11:20:56,701 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-25 11:20:56,701 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-25 11:20:56,701 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:20:56,701 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-25 11:20:56,702 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:20:56,702 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:20:56,702 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2025-04-25 11:20:56,702 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-04-25 11:20:56,702 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-04-25 11:20:56,702 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-04-25 11:20:56,702 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-25 11:20:56,702 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-25 11:20:56,708 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 11:20:56,907 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,SelfDestructingSolverStorable12 [2025-04-25 11:20:56,907 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-25 11:20:56,907 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 11:20:56,907 INFO L139 ounterexampleChecker]: Examining path program with hash 1820855087, occurence #3 [2025-04-25 11:20:56,907 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-25 11:20:56,907 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-25 11:20:56,907 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 11:20:56,907 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2025-04-25 11:20:56,907 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 11:20:56,907 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-04-25 11:20:56,907 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 11:20:56,907 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 12 [2025-04-25 11:20:56,908 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-25 11:20:56,908 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 20 [2025-04-25 11:20:56,908 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 11:20:56,908 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-25 11:20:56,908 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 11:20:56,908 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 11:20:56,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1233572884, now seen corresponding path program 7 times [2025-04-25 11:20:56,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 11:20:56,908 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904801392] [2025-04-25 11:20:56,908 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-04-25 11:20:56,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 11:20:56,911 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-04-25 11:20:56,923 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-04-25 11:20:56,923 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 11:20:56,923 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 11:20:57,712 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 11:20:57,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 11:20:57,712 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904801392] [2025-04-25 11:20:57,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904801392] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 11:20:57,712 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2017482727] [2025-04-25 11:20:57,712 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-04-25 11:20:57,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 11:20:57,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 11:20:57,714 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 11:20:57,715 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 11:20:57,732 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-04-25 11:20:57,741 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-04-25 11:20:57,741 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 11:20:57,741 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 11:20:57,742 INFO L256 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 33 conjuncts are in the unsatisfiable core [2025-04-25 11:20:57,743 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 11:20:57,807 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 101 [2025-04-25 11:20:57,916 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 212 treesize of output 182 [2025-04-25 11:20:57,918 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 182 treesize of output 152 [2025-04-25 11:20:58,556 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 11:20:58,557 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-25 11:20:59,113 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-25 11:20:59,114 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 164 treesize of output 152 [2025-04-25 11:20:59,315 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-25 11:20:59,315 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 107 treesize of output 99 [2025-04-25 11:20:59,319 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-25 11:20:59,319 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 83 [2025-04-25 11:20:59,416 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-25 11:20:59,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2017482727] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-25 11:20:59,416 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-25 11:20:59,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 13] total 29 [2025-04-25 11:20:59,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614012092] [2025-04-25 11:20:59,416 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-25 11:20:59,417 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2025-04-25 11:20:59,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 11:20:59,417 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2025-04-25 11:20:59,417 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=741, Unknown=0, NotChecked=0, Total=812 [2025-04-25 11:20:59,417 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 11:20:59,417 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 11:20:59,417 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 1.8275862068965518) internal successors, (53), 29 states have internal predecessors, (53), 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 11:20:59,417 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 11:20:59,418 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-04-25 11:20:59,418 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-04-25 11:20:59,418 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:20:59,418 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-25 11:20:59,418 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:20:59,418 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:20:59,418 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2025-04-25 11:20:59,418 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2025-04-25 11:20:59,418 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2025-04-25 11:20:59,418 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-04-25 11:20:59,418 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-25 11:20:59,418 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-25 11:20:59,418 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 11:21:02,297 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 11:21:02,297 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-25 11:21:02,297 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-25 11:21:02,297 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:21:02,297 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-25 11:21:02,297 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:21:02,297 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:21:02,297 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2025-04-25 11:21:02,297 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-04-25 11:21:02,297 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-04-25 11:21:02,297 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-04-25 11:21:02,297 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-25 11:21:02,297 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-25 11:21:02,297 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2025-04-25 11:21:02,303 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-04-25 11:21:02,498 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 11:21:02,498 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-25 11:21:02,498 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 11:21:02,498 INFO L139 ounterexampleChecker]: Examining path program with hash -1835655733, occurence #2 [2025-04-25 11:21:02,498 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-25 11:21:02,498 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-25 11:21:02,498 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 11:21:02,498 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2025-04-25 11:21:02,498 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 11:21:02,498 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-04-25 11:21:02,499 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 11:21:02,499 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2025-04-25 11:21:02,499 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-25 11:21:02,499 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2025-04-25 11:21:02,499 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 11:21:02,499 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-25 11:21:02,499 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 11:21:02,499 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 11:21:02,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1392739566, now seen corresponding path program 8 times [2025-04-25 11:21:02,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 11:21:02,499 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99850567] [2025-04-25 11:21:02,499 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-25 11:21:02,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 11:21:02,501 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-04-25 11:21:02,509 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-04-25 11:21:02,509 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-25 11:21:02,509 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 11:21:02,915 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 11:21:02,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 11:21:02,915 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99850567] [2025-04-25 11:21:02,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99850567] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 11:21:02,915 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1988421662] [2025-04-25 11:21:02,915 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-25 11:21:02,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 11:21:02,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 11:21:02,917 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 11:21:02,918 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 11:21:02,936 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-04-25 11:21:02,947 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-04-25 11:21:02,947 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-25 11:21:02,947 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 11:21:02,948 INFO L256 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 39 conjuncts are in the unsatisfiable core [2025-04-25 11:21:02,949 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 11:21:03,050 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 124 treesize of output 102 [2025-04-25 11:21:03,165 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-25 11:21:03,166 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 64 [2025-04-25 11:21:03,170 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 47 [2025-04-25 11:21:03,469 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 11:21:03,470 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-25 11:21:04,207 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-25 11:21:04,207 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 131 treesize of output 119 [2025-04-25 11:21:04,326 INFO L172 IndexEqualityManager]: detected equality via solver [2025-04-25 11:21:04,331 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-25 11:21:04,331 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 38 [2025-04-25 11:21:04,333 INFO L172 IndexEqualityManager]: detected equality via solver [2025-04-25 11:21:04,338 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-25 11:21:04,338 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 40 [2025-04-25 11:21:04,412 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-25 11:21:04,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1988421662] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-25 11:21:04,412 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-25 11:21:04,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15, 14] total 31 [2025-04-25 11:21:04,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309202218] [2025-04-25 11:21:04,413 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-25 11:21:04,413 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2025-04-25 11:21:04,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 11:21:04,413 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2025-04-25 11:21:04,413 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=843, Unknown=0, NotChecked=0, Total=930 [2025-04-25 11:21:04,413 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 11:21:04,413 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 11:21:04,414 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 1.8064516129032258) internal successors, (56), 31 states have internal predecessors, (56), 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 11:21:04,414 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 11:21:04,414 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-04-25 11:21:04,414 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-04-25 11:21:04,414 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:21:04,414 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-25 11:21:04,414 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:21:04,414 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:21:04,414 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2025-04-25 11:21:04,414 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2025-04-25 11:21:04,414 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2025-04-25 11:21:04,414 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-04-25 11:21:04,414 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-25 11:21:04,414 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-25 11:21:04,414 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2025-04-25 11:21:04,414 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 11:21:07,059 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 11:21:07,059 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-25 11:21:07,059 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-25 11:21:07,059 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:21:07,059 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-25 11:21:07,059 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:21:07,059 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:21:07,059 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2025-04-25 11:21:07,059 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-04-25 11:21:07,059 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-04-25 11:21:07,059 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-04-25 11:21:07,059 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-25 11:21:07,059 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-25 11:21:07,059 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2025-04-25 11:21:07,060 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2025-04-25 11:21:07,065 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-04-25 11:21:07,260 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2025-04-25 11:21:07,260 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-25 11:21:07,260 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 11:21:07,260 INFO L139 ounterexampleChecker]: Examining path program with hash -1929715758, occurence #2 [2025-04-25 11:21:07,260 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-25 11:21:07,260 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-25 11:21:07,260 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 11:21:07,260 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2025-04-25 11:21:07,260 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 11:21:07,261 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-04-25 11:21:07,261 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 11:21:07,261 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2025-04-25 11:21:07,261 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-25 11:21:07,261 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 22 [2025-04-25 11:21:07,261 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 11:21:07,261 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-25 11:21:07,261 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 11:21:07,261 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 11:21:07,261 INFO L85 PathProgramCache]: Analyzing trace with hash 689927531, now seen corresponding path program 9 times [2025-04-25 11:21:07,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 11:21:07,261 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415949122] [2025-04-25 11:21:07,261 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-25 11:21:07,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 11:21:07,263 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 25 statements into 3 equivalence classes. [2025-04-25 11:21:07,272 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 25 of 25 statements. [2025-04-25 11:21:07,272 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-04-25 11:21:07,272 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 11:21:07,483 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 11:21:07,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 11:21:07,483 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415949122] [2025-04-25 11:21:07,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415949122] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 11:21:07,484 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733848275] [2025-04-25 11:21:07,484 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-25 11:21:07,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 11:21:07,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 11:21:07,485 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 11:21:07,487 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 11:21:07,508 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 25 statements into 3 equivalence classes. [2025-04-25 11:21:07,519 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 25 of 25 statements. [2025-04-25 11:21:07,519 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-04-25 11:21:07,519 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 11:21:07,520 INFO L256 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-04-25 11:21:07,520 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 11:21:07,564 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 25 [2025-04-25 11:21:07,592 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 26 [2025-04-25 11:21:07,594 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2025-04-25 11:21:07,649 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 11:21:07,649 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-25 11:21:07,692 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-25 11:21:07,692 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2025-04-25 11:21:07,729 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-25 11:21:07,730 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 29 [2025-04-25 11:21:07,733 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-25 11:21:07,734 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 29 [2025-04-25 11:21:07,780 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-25 11:21:07,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [733848275] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-25 11:21:07,781 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-25 11:21:07,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 12] total 24 [2025-04-25 11:21:07,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496369337] [2025-04-25 11:21:07,781 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-25 11:21:07,781 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-04-25 11:21:07,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 11:21:07,781 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-04-25 11:21:07,781 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=491, Unknown=0, NotChecked=0, Total=552 [2025-04-25 11:21:07,781 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 11:21:07,782 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 11:21:07,782 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 1.6666666666666667) internal successors, (40), 24 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 11:21:07,782 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 11:21:07,782 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-04-25 11:21:07,782 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-04-25 11:21:07,782 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:21:07,782 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-25 11:21:07,782 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:21:07,782 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:21:07,782 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2025-04-25 11:21:07,782 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2025-04-25 11:21:07,782 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2025-04-25 11:21:07,782 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-04-25 11:21:07,782 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-25 11:21:07,782 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-25 11:21:07,782 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2025-04-25 11:21:07,782 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2025-04-25 11:21:07,782 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 11:21:08,686 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 11:21:08,686 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-25 11:21:08,686 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-25 11:21:08,686 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:21:08,686 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-25 11:21:08,686 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:21:08,686 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:21:08,686 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2025-04-25 11:21:08,686 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-04-25 11:21:08,686 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-04-25 11:21:08,687 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-04-25 11:21:08,687 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-25 11:21:08,687 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-25 11:21:08,687 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2025-04-25 11:21:08,687 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2025-04-25 11:21:08,687 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2025-04-25 11:21:08,692 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-04-25 11:21:08,887 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,SelfDestructingSolverStorable15 [2025-04-25 11:21:08,887 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-25 11:21:08,887 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 11:21:08,888 INFO L139 ounterexampleChecker]: Examining path program with hash 1413861742, occurence #3 [2025-04-25 11:21:08,888 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-25 11:21:08,888 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-25 11:21:08,888 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 11:21:08,888 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2025-04-25 11:21:08,888 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 11:21:08,888 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-04-25 11:21:08,888 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 11:21:08,888 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2025-04-25 11:21:08,888 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-25 11:21:08,888 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 21 [2025-04-25 11:21:08,888 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 11:21:08,888 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-25 11:21:08,888 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 11:21:08,888 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 11:21:08,888 INFO L85 PathProgramCache]: Analyzing trace with hash -905359536, now seen corresponding path program 10 times [2025-04-25 11:21:08,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 11:21:08,888 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573404490] [2025-04-25 11:21:08,888 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-25 11:21:08,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 11:21:08,891 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 25 statements into 2 equivalence classes. [2025-04-25 11:21:08,896 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-04-25 11:21:08,896 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-04-25 11:21:08,896 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 11:21:09,128 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 11:21:09,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 11:21:09,128 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573404490] [2025-04-25 11:21:09,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573404490] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 11:21:09,128 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1452079248] [2025-04-25 11:21:09,128 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-25 11:21:09,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 11:21:09,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 11:21:09,130 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 11:21:09,131 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 11:21:09,148 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 25 statements into 2 equivalence classes. [2025-04-25 11:21:09,157 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-04-25 11:21:09,157 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-04-25 11:21:09,157 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 11:21:09,158 INFO L256 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-04-25 11:21:09,159 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 11:21:09,205 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2025-04-25 11:21:09,268 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 26 [2025-04-25 11:21:09,269 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2025-04-25 11:21:09,330 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 11:21:09,330 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-25 11:21:09,382 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-25 11:21:09,382 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 31 [2025-04-25 11:21:09,408 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-25 11:21:09,408 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 29 [2025-04-25 11:21:09,412 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-25 11:21:09,412 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 29 [2025-04-25 11:21:09,463 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-25 11:21:09,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1452079248] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-25 11:21:09,463 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-25 11:21:09,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 12] total 23 [2025-04-25 11:21:09,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441117361] [2025-04-25 11:21:09,464 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-25 11:21:09,464 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-04-25 11:21:09,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 11:21:09,464 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-04-25 11:21:09,464 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=448, Unknown=0, NotChecked=0, Total=506 [2025-04-25 11:21:09,464 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 11:21:09,464 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 11:21:09,465 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 1.6521739130434783) internal successors, (38), 23 states have internal predecessors, (38), 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 11:21:09,465 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 11:21:09,465 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-04-25 11:21:09,465 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-04-25 11:21:09,465 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:21:09,465 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-25 11:21:09,465 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:21:09,465 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:21:09,465 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2025-04-25 11:21:09,465 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2025-04-25 11:21:09,465 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2025-04-25 11:21:09,465 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-04-25 11:21:09,465 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-25 11:21:09,465 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-25 11:21:09,465 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2025-04-25 11:21:09,465 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2025-04-25 11:21:09,465 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2025-04-25 11:21:09,465 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 11:21:11,515 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 11:21:11,515 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-25 11:21:11,515 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-25 11:21:11,515 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:21:11,515 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-25 11:21:11,515 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:21:11,515 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:21:11,515 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2025-04-25 11:21:11,515 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-04-25 11:21:11,515 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-04-25 11:21:11,515 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-04-25 11:21:11,516 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-25 11:21:11,516 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-25 11:21:11,516 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2025-04-25 11:21:11,516 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2025-04-25 11:21:11,516 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2025-04-25 11:21:11,516 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2025-04-25 11:21:11,521 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2025-04-25 11:21:11,716 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2025-04-25 11:21:11,716 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-25 11:21:11,716 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 11:21:11,716 INFO L139 ounterexampleChecker]: Examining path program with hash -1510113780, occurence #1 [2025-04-25 11:21:11,717 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-25 11:21:11,717 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 11:21:11,717 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 11:21:11,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1641822133, now seen corresponding path program 1 times [2025-04-25 11:21:11,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 11:21:11,717 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991228145] [2025-04-25 11:21:11,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-25 11:21:11,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 11:21:11,718 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-04-25 11:21:11,719 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-04-25 11:21:11,719 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 11:21:11,719 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 11:21:11,727 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 11:21:11,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 11:21:11,727 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991228145] [2025-04-25 11:21:11,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991228145] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-25 11:21:11,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-25 11:21:11,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-25 11:21:11,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943208925] [2025-04-25 11:21:11,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-25 11:21:11,728 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-25 11:21:11,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 11:21:11,728 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-25 11:21:11,728 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-25 11:21:11,728 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 11:21:11,728 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 11:21:11,728 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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 11:21:11,728 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 11:21:11,728 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-04-25 11:21:11,728 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-04-25 11:21:11,728 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:21:11,728 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-25 11:21:11,728 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:21:11,728 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:21:11,728 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2025-04-25 11:21:11,728 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2025-04-25 11:21:11,728 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2025-04-25 11:21:11,729 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-04-25 11:21:11,729 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-25 11:21:11,729 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-25 11:21:11,729 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2025-04-25 11:21:11,729 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2025-04-25 11:21:11,729 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2025-04-25 11:21:11,729 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2025-04-25 11:21:11,729 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 11:21:11,838 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 11:21:11,838 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-25 11:21:11,838 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-25 11:21:11,838 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:21:11,838 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-25 11:21:11,838 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:21:11,838 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:21:11,838 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2025-04-25 11:21:11,838 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-04-25 11:21:11,838 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-04-25 11:21:11,838 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-04-25 11:21:11,838 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-25 11:21:11,838 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-25 11:21:11,838 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2025-04-25 11:21:11,838 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2025-04-25 11:21:11,838 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2025-04-25 11:21:11,838 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2025-04-25 11:21:11,838 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 11:21:11,839 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-04-25 11:21:11,839 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-25 11:21:11,839 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 11:21:11,839 INFO L139 ounterexampleChecker]: Examining path program with hash -1234010928, occurence #1 [2025-04-25 11:21:11,839 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-25 11:21:11,839 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 11:21:11,839 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 11:21:11,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1129804576, now seen corresponding path program 1 times [2025-04-25 11:21:11,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 11:21:11,839 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899163479] [2025-04-25 11:21:11,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-25 11:21:11,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 11:21:11,841 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-04-25 11:21:11,841 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-04-25 11:21:11,841 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 11:21:11,841 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 11:21:11,850 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 11:21:11,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 11:21:11,851 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899163479] [2025-04-25 11:21:11,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899163479] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-25 11:21:11,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-25 11:21:11,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-25 11:21:11,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133321709] [2025-04-25 11:21:11,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-25 11:21:11,851 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-25 11:21:11,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 11:21:11,852 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-25 11:21:11,852 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-25 11:21:11,852 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 11:21:11,852 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 11:21:11,852 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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 11:21:11,852 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 11:21:11,852 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-04-25 11:21:11,852 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-04-25 11:21:11,852 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:21:11,852 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-25 11:21:11,852 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:21:11,852 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:21:11,852 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2025-04-25 11:21:11,852 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2025-04-25 11:21:11,852 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2025-04-25 11:21:11,852 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-04-25 11:21:11,852 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-25 11:21:11,852 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-25 11:21:11,852 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2025-04-25 11:21:11,852 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2025-04-25 11:21:11,852 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2025-04-25 11:21:11,852 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2025-04-25 11:21:11,852 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 11:21:11,852 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 11:21:11,908 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 11:21:11,908 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-25 11:21:11,909 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-25 11:21:11,909 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:21:11,909 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-25 11:21:11,909 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:21:11,909 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:21:11,909 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2025-04-25 11:21:11,909 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-04-25 11:21:11,909 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-04-25 11:21:11,909 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-04-25 11:21:11,909 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-25 11:21:11,909 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-25 11:21:11,909 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2025-04-25 11:21:11,909 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2025-04-25 11:21:11,909 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2025-04-25 11:21:11,909 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2025-04-25 11:21:11,909 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 11:21:11,910 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 11:21:11,910 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-04-25 11:21:11,910 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-25 11:21:11,910 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 11:21:11,910 INFO L139 ounterexampleChecker]: Examining path program with hash -1139950903, occurence #1 [2025-04-25 11:21:11,910 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-25 11:21:11,910 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 11:21:11,911 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 11:21:11,911 INFO L85 PathProgramCache]: Analyzing trace with hash 628623579, now seen corresponding path program 1 times [2025-04-25 11:21:11,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 11:21:11,911 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44968213] [2025-04-25 11:21:11,911 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-25 11:21:11,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 11:21:11,912 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-04-25 11:21:11,913 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-04-25 11:21:11,913 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 11:21:11,913 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 11:21:11,956 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 11:21:11,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 11:21:11,956 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44968213] [2025-04-25 11:21:11,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44968213] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-25 11:21:11,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-25 11:21:11,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-25 11:21:11,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622409695] [2025-04-25 11:21:11,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-25 11:21:11,957 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-25 11:21:11,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 11:21:11,957 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-25 11:21:11,957 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-04-25 11:21:11,957 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 11:21:11,957 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 11:21:11,957 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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 11:21:11,957 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 11:21:11,957 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-04-25 11:21:11,957 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-04-25 11:21:11,957 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:21:11,957 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-25 11:21:11,957 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:21:11,957 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:21:11,957 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2025-04-25 11:21:11,957 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2025-04-25 11:21:11,957 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2025-04-25 11:21:11,957 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-04-25 11:21:11,957 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-25 11:21:11,957 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-25 11:21:11,957 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2025-04-25 11:21:11,957 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2025-04-25 11:21:11,957 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2025-04-25 11:21:11,957 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2025-04-25 11:21:11,957 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 11:21:11,957 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 11:21:11,958 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 11:21:12,049 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 11:21:12,049 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-25 11:21:12,049 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-25 11:21:12,049 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:21:12,049 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-25 11:21:12,049 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:21:12,049 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 11:21:12,049 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2025-04-25 11:21:12,050 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-04-25 11:21:12,050 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-04-25 11:21:12,050 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-04-25 11:21:12,050 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-25 11:21:12,050 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-25 11:21:12,050 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2025-04-25 11:21:12,050 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2025-04-25 11:21:12,050 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2025-04-25 11:21:12,050 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2025-04-25 11:21:12,050 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 11:21:12,050 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 11:21:12,050 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 11:21:12,052 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2025-04-25 11:21:12,052 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2025-04-25 11:21:12,052 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2025-04-25 11:21:12,052 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2025-04-25 11:21:12,052 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-04-25 11:21:12,056 INFO L422 BasicCegarLoop]: Path program histogram: [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-25 11:21:12,057 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-25 11:21:12,057 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-25 11:21:12,065 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2025-04-25 11:21:12,065 INFO L201 PluginConnector]: Adding new model word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.04 11:21:12 BasicIcfg [2025-04-25 11:21:12,065 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-25 11:21:12,066 INFO L158 Benchmark]: Toolchain (without parser) took 30748.61ms. Allocated memory was 167.8MB in the beginning and 327.2MB in the end (delta: 159.4MB). Free memory was 102.3MB in the beginning and 156.0MB in the end (delta: -53.7MB). Peak memory consumption was 112.4MB. Max. memory is 16.0GB. [2025-04-25 11:21:12,066 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.18ms. Allocated memory is still 167.8MB. Free memory is still 103.3MB. There was no memory consumed. Max. memory is 16.0GB. [2025-04-25 11:21:12,066 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.62ms. Allocated memory is still 167.8MB. Free memory was 102.3MB in the beginning and 100.5MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.0GB. [2025-04-25 11:21:12,066 INFO L158 Benchmark]: Boogie Preprocessor took 30.08ms. Allocated memory is still 167.8MB. Free memory was 100.5MB in the beginning and 98.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.0GB. [2025-04-25 11:21:12,067 INFO L158 Benchmark]: RCFGBuilder took 246.46ms. Allocated memory is still 167.8MB. Free memory was 98.6MB in the beginning and 83.7MB in the end (delta: 14.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2025-04-25 11:21:12,067 INFO L158 Benchmark]: TraceAbstraction took 30428.38ms. Allocated memory was 167.8MB in the beginning and 327.2MB in the end (delta: 159.4MB). Free memory was 82.8MB in the beginning and 156.0MB in the end (delta: -73.2MB). Peak memory consumption was 87.3MB. Max. memory is 16.0GB. [2025-04-25 11:21:12,067 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 0.18ms. Allocated memory is still 167.8MB. Free memory is still 103.3MB. There was no memory consumed. Max. memory is 16.0GB. * Boogie Procedure Inliner took 39.62ms. Allocated memory is still 167.8MB. Free memory was 102.3MB in the beginning and 100.5MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.0GB. * Boogie Preprocessor took 30.08ms. Allocated memory is still 167.8MB. Free memory was 100.5MB in the beginning and 98.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 246.46ms. Allocated memory is still 167.8MB. Free memory was 98.6MB in the beginning and 83.7MB in the end (delta: 14.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 30428.38ms. Allocated memory was 167.8MB in the beginning and 327.2MB in the end (delta: 159.4MB). Free memory was 82.8MB in the beginning and 156.0MB in the end (delta: -73.2MB). Peak memory consumption was 87.3MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 11271, independent: 8460, independent conditional: 7999, independent unconditional: 461, dependent: 2811, dependent conditional: 2810, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8461, independent: 8460, independent conditional: 7999, independent unconditional: 461, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 8461, independent: 8460, independent conditional: 7999, independent unconditional: 461, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8461, independent: 8460, independent conditional: 7999, independent unconditional: 461, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 8461, independent: 8460, independent conditional: 0, independent unconditional: 8460, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 8461, independent: 8460, independent conditional: 0, independent unconditional: 8460, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 464, independent: 463, independent conditional: 0, independent unconditional: 463, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 464, independent: 461, independent conditional: 0, independent unconditional: 461, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 3, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 3, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 17, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 8461, independent: 7997, independent conditional: 0, independent unconditional: 7997, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 464, unknown conditional: 0, unknown unconditional: 464] , Statistics on independence cache: Total cache size (in pairs): 464, Positive cache size: 463, Positive conditional cache size: 0, Positive unconditional cache size: 463, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 7999, Maximal queried relation: 0, Independence queries for same thread: 2810, Persistent sets #1 benchmarks: Persistent set computation time: 0.1s, Number of persistent set computation: 106, Number of trivial persistent sets: 62, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 462, independent: 461, independent conditional: 0, independent unconditional: 461, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 11271, independent: 8460, independent conditional: 7999, independent unconditional: 461, dependent: 2811, dependent conditional: 2810, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8461, independent: 8460, independent conditional: 7999, independent unconditional: 461, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 8461, independent: 8460, independent conditional: 7999, independent unconditional: 461, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8461, independent: 8460, independent conditional: 7999, independent unconditional: 461, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 8461, independent: 8460, independent conditional: 0, independent unconditional: 8460, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 8461, independent: 8460, independent conditional: 0, independent unconditional: 8460, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 464, independent: 463, independent conditional: 0, independent unconditional: 463, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 464, independent: 461, independent conditional: 0, independent unconditional: 461, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 3, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 3, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 17, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 8461, independent: 7997, independent conditional: 0, independent unconditional: 7997, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 464, unknown conditional: 0, unknown unconditional: 464] , Statistics on independence cache: Total cache size (in pairs): 464, Positive cache size: 463, Positive conditional cache size: 0, Positive unconditional cache size: 463, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 7999, Maximal queried relation: 0, Independence queries for same thread: 2810 - PositiveResult [Line: 128]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 38 locations, 49 edges, 4 error locations. Started 1 CEGAR loops. OverallTime: 30.3s, OverallIterations: 20, TraceHistogramMax: 0, PathProgramHistogramMax: 10, EmptinessCheckTime: 14.5s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 309, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 13.0s InterpolantComputationTime, 620 NumberOfCodeBlocks, 620 NumberOfCodeBlocksAsserted, 44 NumberOfCheckSat, 804 ConstructedInterpolants, 0 QuantifiedInterpolants, 13292 SizeOfPredicates, 172 NumberOfNonLiveVariables, 1002 ConjunctsInSsa, 244 ConjunctsInUnsatCore, 40 InterpolantComputations, 10 PerfectInterpolantSequences, 7/118 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: SuccessfulCommutativityProofs: 0, ConComChecker Statistics: CheckTime [ms]: 0, ConditionCalculationTime [ms]: 0, ConditionCalculations: 9, QuantifiedConditions: 0, TraceChecks: 0, UnknownTraceChecks: 0, UnsatisfiedConditions: 0, ImperfectProofs: 0 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-04-25 11:21:12,084 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 0 Received shutdown request...