/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/popl20-more/queue-add-3-nl.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-dev-42d8767-m [2025-04-25 12:34:57,399 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-25 12:34:57,454 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 12:34:57,460 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-25 12:34:57,460 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-25 12:34:57,480 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-25 12:34:57,480 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-25 12:34:57,480 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-25 12:34:57,481 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-25 12:34:57,481 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-25 12:34:57,481 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-25 12:34:57,481 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-25 12:34:57,481 INFO L153 SettingsManager]: * Use SBE=true [2025-04-25 12:34:57,481 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-25 12:34:57,481 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-25 12:34:57,481 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-25 12:34:57,481 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-25 12:34:57,481 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-25 12:34:57,482 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-25 12:34:57,482 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-25 12:34:57,482 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-25 12:34:57,482 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-25 12:34:57,482 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-25 12:34:57,482 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-25 12:34:57,482 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-25 12:34:57,482 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-25 12:34:57,482 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-25 12:34:57,482 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-25 12:34:57,482 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-25 12:34:57,482 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-25 12:34:57,482 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-25 12:34:57,482 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-25 12:34:57,482 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-25 12:34:57,482 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-25 12:34:57,483 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-25 12:34:57,483 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-25 12:34:57,483 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-25 12:34:57,483 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-25 12:34:57,483 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-25 12:34:57,483 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-04-25 12:34:57,483 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-25 12:34:57,483 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-25 12:34:57,483 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-04-25 12:34:57,483 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-25 12:34:57,483 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-04-25 12:34:57,483 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-04-25 12:34:57,483 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-04-25 12:34:57,483 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 12:34:57,677 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-25 12:34:57,682 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-25 12:34:57,683 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-25 12:34:57,684 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-04-25 12:34:57,684 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-04-25 12:34:57,687 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/queue-add-3-nl.wvr.bpl [2025-04-25 12:34:57,688 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/queue-add-3-nl.wvr.bpl' [2025-04-25 12:34:57,708 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-25 12:34:57,709 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-04-25 12:34:57,709 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-25 12:34:57,709 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-25 12:34:57,709 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-25 12:34:57,717 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "queue-add-3-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.04 12:34:57" (1/1) ... [2025-04-25 12:34:57,739 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "queue-add-3-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.04 12:34:57" (1/1) ... [2025-04-25 12:34:57,743 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-04-25 12:34:57,744 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-25 12:34:57,745 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-25 12:34:57,745 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-25 12:34:57,745 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-25 12:34:57,749 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "queue-add-3-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.04 12:34:57" (1/1) ... [2025-04-25 12:34:57,749 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "queue-add-3-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.04 12:34:57" (1/1) ... [2025-04-25 12:34:57,750 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "queue-add-3-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.04 12:34:57" (1/1) ... [2025-04-25 12:34:57,750 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "queue-add-3-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.04 12:34:57" (1/1) ... [2025-04-25 12:34:57,752 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "queue-add-3-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.04 12:34:57" (1/1) ... [2025-04-25 12:34:57,752 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "queue-add-3-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.04 12:34:57" (1/1) ... [2025-04-25 12:34:57,754 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "queue-add-3-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.04 12:34:57" (1/1) ... [2025-04-25 12:34:57,754 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "queue-add-3-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.04 12:34:57" (1/1) ... [2025-04-25 12:34:57,755 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "queue-add-3-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.04 12:34:57" (1/1) ... [2025-04-25 12:34:57,760 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-25 12:34:57,761 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-25 12:34:57,761 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-25 12:34:57,761 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-25 12:34:57,762 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "queue-add-3-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.04 12:34:57" (1/1) ... [2025-04-25 12:34:57,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-25 12:34:57,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 12:34:57,785 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 12:34:57,787 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 12:34:57,806 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-04-25 12:34:57,806 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-25 12:34:57,806 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-25 12:34:57,806 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-04-25 12:34:57,806 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-25 12:34:57,806 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-25 12:34:57,806 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-04-25 12:34:57,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-25 12:34:57,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-25 12:34:57,806 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2025-04-25 12:34:57,806 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-04-25 12:34:57,807 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-04-25 12:34:57,807 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 12:34:57,846 INFO L234 CfgBuilder]: Building ICFG [2025-04-25 12:34:57,847 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-25 12:34:57,946 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-25 12:34:57,946 INFO L283 CfgBuilder]: Performing block encoding [2025-04-25 12:34:57,970 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-25 12:34:57,970 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-25 12:34:57,971 INFO L201 PluginConnector]: Adding new model queue-add-3-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.04 12:34:57 BoogieIcfgContainer [2025-04-25 12:34:57,971 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-25 12:34:57,972 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-25 12:34:57,972 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-25 12:34:57,975 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-25 12:34:57,975 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "queue-add-3-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.04 12:34:57" (1/2) ... [2025-04-25 12:34:57,976 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@713bfe17 and model type queue-add-3-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.04 12:34:57, skipping insertion in model container [2025-04-25 12:34:57,976 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "queue-add-3-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.04 12:34:57" (2/2) ... [2025-04-25 12:34:57,977 INFO L128 eAbstractionObserver]: Analyzing ICFG queue-add-3-nl.wvr.bpl [2025-04-25 12:34:57,985 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-25 12:34:57,987 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG queue-add-3-nl.wvr.bpl that has 4 procedures, 40 locations, 39 edges, 1 initial locations, 3 loop locations, and 1 error locations. [2025-04-25 12:34:57,987 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-25 12:34:58,022 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-04-25 12:34:58,048 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-25 12:34:58,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-25 12:34:58,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 12:34:58,050 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 12:34:58,052 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 12:34:58,095 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-04-25 12:34:58,107 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-04-25 12:34:58,116 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;@6e3badef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-25 12:34:58,116 INFO L341 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-04-25 12:34:58,180 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 12:34:58,180 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 12:34:58,180 INFO L139 ounterexampleChecker]: Examining path program with hash -68249989, occurence #1 [2025-04-25 12:34:58,180 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-25 12:34:58,180 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 12:34:58,186 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 12:34:58,186 INFO L85 PathProgramCache]: Analyzing trace with hash 222704596, now seen corresponding path program 1 times [2025-04-25 12:34:58,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 12:34:58,191 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009262455] [2025-04-25 12:34:58,191 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-25 12:34:58,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 12:34:58,230 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-04-25 12:34:58,239 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-04-25 12:34:58,239 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 12:34:58,239 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 12:34:58,281 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 12:34:58,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 12:34:58,281 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009262455] [2025-04-25 12:34:58,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009262455] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-25 12:34:58,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-25 12:34:58,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-25 12:34:58,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792442765] [2025-04-25 12:34:58,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-25 12:34:58,286 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-25 12:34:58,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 12:34:58,307 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-25 12:34:58,307 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-25 12:34:58,308 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 12:34:58,309 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 12:34:58,313 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 12:34:58,313 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 12:34:58,389 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:34:58,389 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-25 12:34:58,389 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 12:34:58,389 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 12:34:58,389 INFO L139 ounterexampleChecker]: Examining path program with hash 224129305, occurence #1 [2025-04-25 12:34:58,389 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-25 12:34:58,390 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 12:34:58,390 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 12:34:58,390 INFO L85 PathProgramCache]: Analyzing trace with hash -2122283812, now seen corresponding path program 1 times [2025-04-25 12:34:58,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 12:34:58,390 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652061882] [2025-04-25 12:34:58,390 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-25 12:34:58,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 12:34:58,399 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-04-25 12:34:58,439 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-04-25 12:34:58,439 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 12:34:58,439 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 12:34:58,485 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 12:34:58,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 12:34:58,485 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652061882] [2025-04-25 12:34:58,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652061882] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-25 12:34:58,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-25 12:34:58,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-25 12:34:58,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740768876] [2025-04-25 12:34:58,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-25 12:34:58,486 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-25 12:34:58,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 12:34:58,487 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-25 12:34:58,487 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-25 12:34:58,487 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 12:34:58,487 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 12:34:58,487 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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 12:34:58,488 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:34:58,488 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 12:34:58,536 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:34:58,536 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:34:58,537 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-25 12:34:58,537 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 12:34:58,537 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 12:34:58,537 INFO L139 ounterexampleChecker]: Examining path program with hash 451230732, occurence #1 [2025-04-25 12:34:58,537 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-25 12:34:58,537 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 12:34:58,537 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 12:34:58,538 INFO L85 PathProgramCache]: Analyzing trace with hash 653104152, now seen corresponding path program 1 times [2025-04-25 12:34:58,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 12:34:58,538 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086051924] [2025-04-25 12:34:58,538 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-25 12:34:58,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 12:34:58,545 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-04-25 12:34:58,566 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-04-25 12:34:58,566 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 12:34:58,566 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 12:34:59,100 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 12:34:59,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 12:34:59,101 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086051924] [2025-04-25 12:34:59,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086051924] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 12:34:59,101 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [289502398] [2025-04-25 12:34:59,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-25 12:34:59,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 12:34:59,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 12:34:59,104 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 12:34:59,106 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 12:34:59,131 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-04-25 12:34:59,141 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-04-25 12:34:59,141 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 12:34:59,141 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 12:34:59,142 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 20 conjuncts are in the unsatisfiable core [2025-04-25 12:34:59,148 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 12:34:59,613 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 12:34:59,613 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-25 12:34:59,918 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 12:34:59,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [289502398] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-25 12:34:59,919 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-25 12:34:59,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 25 [2025-04-25 12:34:59,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440543673] [2025-04-25 12:34:59,919 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-25 12:34:59,921 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2025-04-25 12:34:59,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 12:34:59,921 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2025-04-25 12:34:59,922 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=536, Unknown=0, NotChecked=0, Total=650 [2025-04-25 12:34:59,922 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 12:34:59,922 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 12:34:59,922 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.076923076923077) internal successors, (80), 25 states have internal predecessors, (80), 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 12:34:59,922 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:34:59,922 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:34:59,922 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 12:35:00,290 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:35:00,290 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:35:00,290 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-04-25 12:35:00,297 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-04-25 12:35:00,495 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,SelfDestructingSolverStorable2 [2025-04-25 12:35:00,495 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 12:35:00,495 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 12:35:00,495 INFO L139 ounterexampleChecker]: Examining path program with hash -1601203132, occurence #1 [2025-04-25 12:35:00,495 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-25 12:35:00,495 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 12:35:00,496 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 12:35:00,496 INFO L85 PathProgramCache]: Analyzing trace with hash -716209398, now seen corresponding path program 2 times [2025-04-25 12:35:00,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 12:35:00,496 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475942853] [2025-04-25 12:35:00,496 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-25 12:35:00,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 12:35:00,500 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 38 statements into 2 equivalence classes. [2025-04-25 12:35:00,504 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 38 of 38 statements. [2025-04-25 12:35:00,504 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-25 12:35:00,504 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 12:35:00,553 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 12:35:00,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 12:35:00,553 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475942853] [2025-04-25 12:35:00,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475942853] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 12:35:00,553 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1693798711] [2025-04-25 12:35:00,554 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-25 12:35:00,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 12:35:00,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 12:35:00,555 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 12:35:00,557 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 12:35:00,581 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 38 statements into 2 equivalence classes. [2025-04-25 12:35:00,590 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 38 of 38 statements. [2025-04-25 12:35:00,590 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-25 12:35:00,590 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 12:35:00,590 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-25 12:35:00,591 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 12:35:00,622 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-25 12:35:00,623 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-25 12:35:00,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1693798711] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-25 12:35:00,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-04-25 12:35:00,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 4 [2025-04-25 12:35:00,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279043959] [2025-04-25 12:35:00,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-25 12:35:00,623 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-25 12:35:00,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 12:35:00,624 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-25 12:35:00,624 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-04-25 12:35:00,624 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 12:35:00,624 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 12:35:00,624 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 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 12:35:00,624 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:35:00,624 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:35:00,624 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-04-25 12:35:00,624 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 12:35:00,656 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:35:00,656 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:35:00,656 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-04-25 12:35:00,657 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 12:35:00,662 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 12:35:00,861 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 12:35:00,861 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 12:35:00,861 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 12:35:00,861 INFO L139 ounterexampleChecker]: Examining path program with hash 963069186, occurence #1 [2025-04-25 12:35:00,861 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-25 12:35:00,861 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 12:35:00,861 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 12:35:00,862 INFO L85 PathProgramCache]: Analyzing trace with hash -448290272, now seen corresponding path program 3 times [2025-04-25 12:35:00,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 12:35:00,862 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379216956] [2025-04-25 12:35:00,862 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-25 12:35:00,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 12:35:00,867 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 39 statements into 2 equivalence classes. [2025-04-25 12:35:00,875 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 39 of 39 statements. [2025-04-25 12:35:00,875 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-04-25 12:35:00,875 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 12:35:00,916 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 12:35:00,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 12:35:00,916 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379216956] [2025-04-25 12:35:00,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379216956] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-25 12:35:00,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-25 12:35:00,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-25 12:35:00,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793405217] [2025-04-25 12:35:00,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-25 12:35:00,917 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-25 12:35:00,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 12:35:00,918 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-25 12:35:00,918 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-04-25 12:35:00,918 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 12:35:00,918 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 12:35:00,918 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-25 12:35:00,918 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:35:00,918 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:35:00,918 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-04-25 12:35:00,918 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-25 12:35:00,918 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 12:35:01,041 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:35:01,041 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:35:01,041 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-25 12:35:01,041 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 12:35:01,041 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 12:35:01,042 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-04-25 12:35:01,042 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 12:35:01,042 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 12:35:01,042 INFO L139 ounterexampleChecker]: Examining path program with hash -2107895761, occurence #1 [2025-04-25 12:35:01,042 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-25 12:35:01,042 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 12:35:01,042 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 12:35:01,042 INFO L85 PathProgramCache]: Analyzing trace with hash 941427440, now seen corresponding path program 1 times [2025-04-25 12:35:01,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 12:35:01,042 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712304402] [2025-04-25 12:35:01,042 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-25 12:35:01,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 12:35:01,046 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-04-25 12:35:01,047 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-04-25 12:35:01,048 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 12:35:01,048 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 12:35:01,097 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 12:35:01,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 12:35:01,097 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712304402] [2025-04-25 12:35:01,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712304402] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 12:35:01,097 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1200967842] [2025-04-25 12:35:01,097 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-25 12:35:01,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 12:35:01,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 12:35:01,099 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 12:35:01,100 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 12:35:01,122 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-04-25 12:35:01,130 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-04-25 12:35:01,130 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 12:35:01,130 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 12:35:01,131 INFO L256 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-04-25 12:35:01,131 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 12:35:01,168 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 11 treesize of output 7 [2025-04-25 12:35:01,188 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 12:35:01,188 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-25 12:35:01,237 INFO L325 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2025-04-25 12:35:01,237 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 11 treesize of output 10 [2025-04-25 12:35:01,247 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 12:35:01,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1200967842] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-25 12:35:01,247 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-25 12:35:01,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2025-04-25 12:35:01,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001692822] [2025-04-25 12:35:01,247 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-25 12:35:01,247 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-04-25 12:35:01,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 12:35:01,248 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-04-25 12:35:01,248 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-04-25 12:35:01,248 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 12:35:01,248 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 12:35:01,248 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 8 states have internal predecessors, (51), 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 12:35:01,248 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:35:01,248 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:35:01,248 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-04-25 12:35:01,248 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-25 12:35:01,248 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-25 12:35:01,248 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 12:35:01,325 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:35:01,325 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:35:01,325 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-25 12:35:01,325 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 12:35:01,325 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 12:35:01,326 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 12:35:01,331 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-04-25 12:35:01,526 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 12:35:01,526 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 12:35:01,526 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 12:35:01,526 INFO L139 ounterexampleChecker]: Examining path program with hash -1815516467, occurence #1 [2025-04-25 12:35:01,526 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-25 12:35:01,527 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 12:35:01,527 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 12:35:01,527 INFO L85 PathProgramCache]: Analyzing trace with hash -657942792, now seen corresponding path program 2 times [2025-04-25 12:35:01,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 12:35:01,527 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612833866] [2025-04-25 12:35:01,527 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-25 12:35:01,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 12:35:01,530 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 43 statements into 2 equivalence classes. [2025-04-25 12:35:01,534 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 43 of 43 statements. [2025-04-25 12:35:01,534 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-25 12:35:01,534 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 12:35:01,664 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 12:35:01,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 12:35:01,664 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612833866] [2025-04-25 12:35:01,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612833866] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 12:35:01,664 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [774339447] [2025-04-25 12:35:01,664 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-25 12:35:01,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 12:35:01,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 12:35:01,666 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 12:35:01,667 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 12:35:01,689 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 43 statements into 2 equivalence classes. [2025-04-25 12:35:01,698 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 43 of 43 statements. [2025-04-25 12:35:01,699 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-25 12:35:01,699 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 12:35:01,699 INFO L256 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 28 conjuncts are in the unsatisfiable core [2025-04-25 12:35:01,700 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 12:35:01,797 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 7 treesize of output 3 [2025-04-25 12:35:01,892 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 12:35:01,892 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-25 12:35:01,932 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-25 12:35:01,932 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 13 treesize of output 17 [2025-04-25 12:35:01,974 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-25 12:35:01,974 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 17 treesize of output 21 [2025-04-25 12:35:02,003 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 12:35:02,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [774339447] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-25 12:35:02,003 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-25 12:35:02,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 7] total 20 [2025-04-25 12:35:02,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424724157] [2025-04-25 12:35:02,003 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-25 12:35:02,003 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-04-25 12:35:02,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 12:35:02,004 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-04-25 12:35:02,004 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=361, Unknown=0, NotChecked=0, Total=420 [2025-04-25 12:35:02,004 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 12:35:02,004 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 12:35:02,004 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 4.0) internal successors, (84), 20 states have internal predecessors, (84), 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 12:35:02,004 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:35:02,004 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:35:02,004 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-04-25 12:35:02,004 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-25 12:35:02,005 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-25 12:35:02,005 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 12:35:02,005 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 12:35:02,238 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:35:02,238 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:35:02,238 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-25 12:35:02,238 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 12:35:02,238 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 12:35:02,238 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 12:35:02,239 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-25 12:35:02,244 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 12:35:02,443 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2025-04-25 12:35:02,443 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 12:35:02,443 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 12:35:02,443 INFO L139 ounterexampleChecker]: Examining path program with hash -1588415040, occurence #1 [2025-04-25 12:35:02,443 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-25 12:35:02,443 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 12:35:02,443 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 12:35:02,444 INFO L85 PathProgramCache]: Analyzing trace with hash 61371260, now seen corresponding path program 3 times [2025-04-25 12:35:02,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 12:35:02,444 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134781058] [2025-04-25 12:35:02,444 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-25 12:35:02,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 12:35:02,447 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 48 statements into 2 equivalence classes. [2025-04-25 12:35:02,458 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 48 of 48 statements. [2025-04-25 12:35:02,458 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-04-25 12:35:02,458 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 12:35:03,105 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 12:35:03,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 12:35:03,105 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134781058] [2025-04-25 12:35:03,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134781058] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 12:35:03,106 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [229282000] [2025-04-25 12:35:03,106 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-25 12:35:03,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 12:35:03,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 12:35:03,108 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 12:35:03,109 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 12:35:03,132 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 48 statements into 2 equivalence classes. [2025-04-25 12:35:03,142 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 48 of 48 statements. [2025-04-25 12:35:03,142 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-04-25 12:35:03,142 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 12:35:03,143 INFO L256 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 46 conjuncts are in the unsatisfiable core [2025-04-25 12:35:03,144 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 12:35:03,980 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 12:35:03,980 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-25 12:35:04,321 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-25 12:35:04,322 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 12:35:04,490 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-25 12:35:04,490 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 24 treesize of output 28 [2025-04-25 12:35:04,606 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 12:35:04,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [229282000] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-25 12:35:04,607 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-25 12:35:04,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 20, 20] total 53 [2025-04-25 12:35:04,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519555172] [2025-04-25 12:35:04,607 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-25 12:35:04,607 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2025-04-25 12:35:04,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 12:35:04,608 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2025-04-25 12:35:04,609 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=2631, Unknown=0, NotChecked=0, Total=2862 [2025-04-25 12:35:04,609 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 12:35:04,609 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 12:35:04,609 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 2.1481481481481484) internal successors, (116), 53 states have internal predecessors, (116), 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 12:35:04,609 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:35:04,609 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:35:04,609 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-04-25 12:35:04,609 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-25 12:35:04,609 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-25 12:35:04,609 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 12:35:04,609 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-04-25 12:35:04,609 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 12:35:06,776 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:35:06,777 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:35:06,777 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-25 12:35:06,777 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 12:35:06,777 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 12:35:06,777 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 12:35:06,777 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-25 12:35:06,777 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2025-04-25 12:35:06,782 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 12:35:06,977 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 12:35:06,977 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 12:35:06,977 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 12:35:06,978 INFO L139 ounterexampleChecker]: Examining path program with hash -2107895761, occurence #2 [2025-04-25 12:35:06,978 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-25 12:35:06,978 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2025-04-25 12:35:06,978 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 12:35:06,978 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 3 [2025-04-25 12:35:06,978 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 12:35:06,978 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2025-04-25 12:35:06,978 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 12:35:06,979 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 49 [2025-04-25 12:35:06,979 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 12:35:06,979 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 50 [2025-04-25 12:35:06,979 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-25 12:35:06,979 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-25 12:35:06,979 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 12:35:06,979 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 12:35:06,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1943115860, now seen corresponding path program 4 times [2025-04-25 12:35:06,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 12:35:06,979 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240270344] [2025-04-25 12:35:06,979 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-25 12:35:06,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 12:35:06,982 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 52 statements into 2 equivalence classes. [2025-04-25 12:35:06,990 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-04-25 12:35:06,990 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-04-25 12:35:06,991 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 12:35:07,162 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 12:35:07,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 12:35:07,162 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240270344] [2025-04-25 12:35:07,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240270344] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 12:35:07,162 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [355813797] [2025-04-25 12:35:07,162 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-25 12:35:07,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 12:35:07,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 12:35:07,164 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 12:35:07,166 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 12:35:07,189 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 52 statements into 2 equivalence classes. [2025-04-25 12:35:07,202 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-04-25 12:35:07,202 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-04-25 12:35:07,202 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 12:35:07,203 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-04-25 12:35:07,204 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 12:35:07,248 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 11 treesize of output 7 [2025-04-25 12:35:07,267 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-04-25 12:35:07,267 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-25 12:35:07,296 INFO L325 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2025-04-25 12:35:07,296 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 11 treesize of output 10 [2025-04-25 12:35:07,318 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-04-25 12:35:07,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [355813797] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-25 12:35:07,319 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-25 12:35:07,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6, 6] total 13 [2025-04-25 12:35:07,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005035946] [2025-04-25 12:35:07,319 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-25 12:35:07,319 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-04-25 12:35:07,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 12:35:07,320 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-04-25 12:35:07,320 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2025-04-25 12:35:07,320 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 12:35:07,320 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 12:35:07,320 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 13 states have internal predecessors, (84), 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 12:35:07,320 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:35:07,320 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:35:07,320 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-04-25 12:35:07,320 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-25 12:35:07,320 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-25 12:35:07,320 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 12:35:07,320 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-04-25 12:35:07,320 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2025-04-25 12:35:07,320 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 12:35:07,479 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:35:07,479 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:35:07,479 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-25 12:35:07,480 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 12:35:07,480 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 12:35:07,480 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 12:35:07,480 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-25 12:35:07,480 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2025-04-25 12:35:07,480 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-25 12:35:07,485 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-04-25 12:35:07,684 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2025-04-25 12:35:07,684 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 12:35:07,684 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 12:35:07,684 INFO L139 ounterexampleChecker]: Examining path program with hash -1815516467, occurence #2 [2025-04-25 12:35:07,684 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-25 12:35:07,684 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2025-04-25 12:35:07,684 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 12:35:07,684 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 3 [2025-04-25 12:35:07,684 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 12:35:07,684 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2025-04-25 12:35:07,685 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 12:35:07,685 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 54 [2025-04-25 12:35:07,685 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 12:35:07,685 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 56 [2025-04-25 12:35:07,685 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-25 12:35:07,685 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-25 12:35:07,685 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 12:35:07,685 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 12:35:07,686 INFO L85 PathProgramCache]: Analyzing trace with hash -166819492, now seen corresponding path program 5 times [2025-04-25 12:35:07,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 12:35:07,686 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000266261] [2025-04-25 12:35:07,686 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-25 12:35:07,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 12:35:07,690 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 58 statements into 3 equivalence classes. [2025-04-25 12:35:07,704 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) and asserted 58 of 58 statements. [2025-04-25 12:35:07,704 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2025-04-25 12:35:07,704 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 12:35:07,911 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 12:35:07,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 12:35:07,912 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000266261] [2025-04-25 12:35:07,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000266261] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 12:35:07,912 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [780214228] [2025-04-25 12:35:07,912 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-25 12:35:07,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 12:35:07,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 12:35:07,914 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 12:35:07,915 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 12:35:07,935 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 58 statements into 3 equivalence classes. [2025-04-25 12:35:07,948 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) and asserted 58 of 58 statements. [2025-04-25 12:35:07,948 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2025-04-25 12:35:07,948 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 12:35:07,949 INFO L256 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-04-25 12:35:07,950 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 12:35:08,024 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 23 treesize of output 17 [2025-04-25 12:35:08,088 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-04-25 12:35:08,088 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-25 12:35:08,175 INFO L325 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2025-04-25 12:35:08,175 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 12 treesize of output 11 [2025-04-25 12:35:08,202 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-04-25 12:35:08,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [780214228] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-25 12:35:08,202 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-25 12:35:08,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 8, 8] total 23 [2025-04-25 12:35:08,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697575883] [2025-04-25 12:35:08,202 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-25 12:35:08,202 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-04-25 12:35:08,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 12:35:08,203 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-04-25 12:35:08,203 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=487, Unknown=0, NotChecked=0, Total=552 [2025-04-25 12:35:08,203 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 12:35:08,203 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 12:35:08,203 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 4.666666666666667) internal successors, (112), 23 states have internal predecessors, (112), 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 12:35:08,203 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:35:08,203 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:35:08,203 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-04-25 12:35:08,203 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-25 12:35:08,203 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-25 12:35:08,203 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 12:35:08,203 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-04-25 12:35:08,203 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2025-04-25 12:35:08,203 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-04-25 12:35:08,203 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 12:35:08,813 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:35:08,814 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:35:08,814 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-25 12:35:08,814 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 12:35:08,814 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 12:35:08,814 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 12:35:08,814 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-25 12:35:08,814 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2025-04-25 12:35:08,814 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-25 12:35:08,814 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2025-04-25 12:35:08,820 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-04-25 12:35:09,014 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 12:35:09,015 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 12:35:09,015 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 12:35:09,015 INFO L139 ounterexampleChecker]: Examining path program with hash -1588415040, occurence #2 [2025-04-25 12:35:09,015 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-25 12:35:09,015 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2025-04-25 12:35:09,015 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 12:35:09,015 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 3 [2025-04-25 12:35:09,015 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 12:35:09,015 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2025-04-25 12:35:09,015 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 12:35:09,015 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 60 [2025-04-25 12:35:09,015 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 12:35:09,015 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 61 [2025-04-25 12:35:09,015 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-25 12:35:09,015 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-25 12:35:09,015 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 12:35:09,016 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 12:35:09,016 INFO L85 PathProgramCache]: Analyzing trace with hash 149839768, now seen corresponding path program 6 times [2025-04-25 12:35:09,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 12:35:09,016 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420311870] [2025-04-25 12:35:09,016 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-04-25 12:35:09,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 12:35:09,019 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 63 statements into 3 equivalence classes. [2025-04-25 12:35:09,030 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) and asserted 63 of 63 statements. [2025-04-25 12:35:09,030 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2025-04-25 12:35:09,030 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 12:35:10,065 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 12:35:10,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 12:35:10,066 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420311870] [2025-04-25 12:35:10,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420311870] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 12:35:10,066 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1584905131] [2025-04-25 12:35:10,066 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-04-25 12:35:10,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 12:35:10,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 12:35:10,067 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 12:35:10,068 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 12:35:10,089 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 63 statements into 3 equivalence classes. [2025-04-25 12:35:10,101 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) and asserted 63 of 63 statements. [2025-04-25 12:35:10,102 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2025-04-25 12:35:10,102 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 12:35:10,103 INFO L256 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 72 conjuncts are in the unsatisfiable core [2025-04-25 12:35:10,104 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 12:35:11,581 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 12:35:11,581 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-25 12:35:12,562 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-25 12:35:12,562 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 42 treesize of output 66 [2025-04-25 12:35:12,897 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-25 12:35:12,897 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 63 [2025-04-25 12:35:12,980 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 12:35:12,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1584905131] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-25 12:35:12,980 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-25 12:35:12,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 29, 29] total 80 [2025-04-25 12:35:12,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430716627] [2025-04-25 12:35:12,980 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-25 12:35:12,980 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 81 states [2025-04-25 12:35:12,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 12:35:12,981 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2025-04-25 12:35:12,983 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=326, Invalid=6154, Unknown=0, NotChecked=0, Total=6480 [2025-04-25 12:35:12,983 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 12:35:12,983 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 12:35:12,983 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 81 states, 81 states have (on average 1.9876543209876543) internal successors, (161), 80 states have internal predecessors, (161), 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 12:35:12,983 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:35:12,983 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:35:12,983 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-04-25 12:35:12,983 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-25 12:35:12,983 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-25 12:35:12,983 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 12:35:12,983 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-04-25 12:35:12,983 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2025-04-25 12:35:12,983 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-04-25 12:35:12,984 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2025-04-25 12:35:12,984 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 12:35:19,583 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:35:19,584 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:35:19,584 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-25 12:35:19,584 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 12:35:19,584 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 12:35:19,584 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 12:35:19,584 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-25 12:35:19,584 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2025-04-25 12:35:19,584 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-25 12:35:19,584 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2025-04-25 12:35:19,584 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2025-04-25 12:35:19,590 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-04-25 12:35:19,784 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 12:35:19,784 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 12:35:19,784 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 12:35:19,785 INFO L139 ounterexampleChecker]: Examining path program with hash -1588415040, occurence #3 [2025-04-25 12:35:19,785 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-25 12:35:19,785 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2025-04-25 12:35:19,785 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 12:35:19,785 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 3 [2025-04-25 12:35:19,785 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 12:35:19,785 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2025-04-25 12:35:19,785 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 12:35:19,785 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 90 [2025-04-25 12:35:19,785 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 12:35:19,785 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 91 [2025-04-25 12:35:19,785 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-25 12:35:19,785 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-25 12:35:19,785 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 12:35:19,785 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 12:35:19,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1981680408, now seen corresponding path program 7 times [2025-04-25 12:35:19,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 12:35:19,786 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544502110] [2025-04-25 12:35:19,786 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-04-25 12:35:19,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 12:35:19,789 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-04-25 12:35:19,816 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-04-25 12:35:19,816 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 12:35:19,816 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 12:35:21,716 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 18 proven. 62 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-04-25 12:35:21,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 12:35:21,716 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544502110] [2025-04-25 12:35:21,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544502110] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 12:35:21,716 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [10353914] [2025-04-25 12:35:21,716 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-04-25 12:35:21,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 12:35:21,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 12:35:21,718 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 12:35:21,719 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 12:35:21,742 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-04-25 12:35:21,759 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-04-25 12:35:21,759 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 12:35:21,759 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 12:35:21,761 WARN L254 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 124 conjuncts are in the unsatisfiable core [2025-04-25 12:35:21,763 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 12:35:24,913 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 95 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 12:35:24,913 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-25 12:35:27,983 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-25 12:35:27,984 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 76 treesize of output 200 [2025-04-25 12:35:28,694 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-25 12:35:28,694 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 65 treesize of output 189 [2025-04-25 12:35:28,882 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 95 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 12:35:28,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [10353914] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-25 12:35:28,883 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-25 12:35:28,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 47, 47] total 127 [2025-04-25 12:35:28,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180349023] [2025-04-25 12:35:28,883 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-25 12:35:28,883 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 128 states [2025-04-25 12:35:28,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 12:35:28,884 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 128 interpolants. [2025-04-25 12:35:28,887 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=655, Invalid=15601, Unknown=0, NotChecked=0, Total=16256 [2025-04-25 12:35:28,887 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 12:35:28,887 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 12:35:28,887 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 128 states, 128 states have (on average 1.8671875) internal successors, (239), 127 states have internal predecessors, (239), 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 12:35:28,887 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:35:28,887 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:35:28,887 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-04-25 12:35:28,887 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-25 12:35:28,887 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-25 12:35:28,887 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 12:35:28,887 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-04-25 12:35:28,887 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2025-04-25 12:35:28,887 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-04-25 12:35:28,887 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2025-04-25 12:35:28,887 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 110 states. [2025-04-25 12:35:28,887 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 12:35:42,453 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:35:42,453 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:35:42,453 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-25 12:35:42,453 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 12:35:42,454 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 12:35:42,454 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 12:35:42,454 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-25 12:35:42,454 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2025-04-25 12:35:42,454 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-25 12:35:42,454 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2025-04-25 12:35:42,454 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2025-04-25 12:35:42,454 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 152 states. [2025-04-25 12:35:42,460 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 12:35:42,654 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2025-04-25 12:35:42,654 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 12:35:42,655 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 12:35:42,655 INFO L139 ounterexampleChecker]: Examining path program with hash -275075856, occurence #1 [2025-04-25 12:35:42,655 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-25 12:35:42,655 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 12:35:42,655 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 12:35:42,655 INFO L85 PathProgramCache]: Analyzing trace with hash 972792516, now seen corresponding path program 8 times [2025-04-25 12:35:42,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 12:35:42,655 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689771533] [2025-04-25 12:35:42,655 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-25 12:35:42,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 12:35:42,659 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 118 statements into 2 equivalence classes. [2025-04-25 12:35:42,674 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 118 of 118 statements. [2025-04-25 12:35:42,674 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-25 12:35:42,675 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 12:35:43,034 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2025-04-25 12:35:43,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 12:35:43,034 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689771533] [2025-04-25 12:35:43,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689771533] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 12:35:43,035 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [170373933] [2025-04-25 12:35:43,035 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-25 12:35:43,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 12:35:43,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 12:35:43,036 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 12:35:43,037 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 12:35:43,063 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 118 statements into 2 equivalence classes. [2025-04-25 12:35:43,082 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 118 of 118 statements. [2025-04-25 12:35:43,082 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-25 12:35:43,082 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 12:35:43,083 INFO L256 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 54 conjuncts are in the unsatisfiable core [2025-04-25 12:35:43,084 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 12:35:43,267 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2025-04-25 12:35:43,268 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-25 12:35:43,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [170373933] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-25 12:35:43,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-04-25 12:35:43,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [16] total 19 [2025-04-25 12:35:43,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454811634] [2025-04-25 12:35:43,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-25 12:35:43,268 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-04-25 12:35:43,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 12:35:43,268 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-04-25 12:35:43,269 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2025-04-25 12:35:43,269 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 12:35:43,269 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 12:35:43,269 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-25 12:35:43,269 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:35:43,269 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:35:43,269 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-04-25 12:35:43,269 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-25 12:35:43,269 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-25 12:35:43,269 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 12:35:43,269 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-04-25 12:35:43,269 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2025-04-25 12:35:43,269 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-04-25 12:35:43,269 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2025-04-25 12:35:43,269 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 110 states. [2025-04-25 12:35:43,269 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 152 states. [2025-04-25 12:35:43,269 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 12:35:43,466 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:35:43,467 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:35:43,467 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-25 12:35:43,467 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 12:35:43,467 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 12:35:43,467 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 12:35:43,467 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-25 12:35:43,467 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2025-04-25 12:35:43,467 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-25 12:35:43,467 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2025-04-25 12:35:43,467 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2025-04-25 12:35:43,467 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 152 states. [2025-04-25 12:35:43,468 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-04-25 12:35:43,473 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-04-25 12:35:43,668 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,12 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 12:35:43,668 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 12:35:43,668 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 12:35:43,668 INFO L139 ounterexampleChecker]: Examining path program with hash 1967457576, occurence #1 [2025-04-25 12:35:43,668 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-25 12:35:43,668 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 12:35:43,669 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 12:35:43,669 INFO L85 PathProgramCache]: Analyzing trace with hash -2074361890, now seen corresponding path program 9 times [2025-04-25 12:35:43,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 12:35:43,669 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589517215] [2025-04-25 12:35:43,669 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-25 12:35:43,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 12:35:43,672 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 123 statements into 5 equivalence classes. [2025-04-25 12:35:43,689 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) and asserted 123 of 123 statements. [2025-04-25 12:35:43,689 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2025-04-25 12:35:43,689 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 12:35:46,254 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 20 proven. 90 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2025-04-25 12:35:46,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 12:35:46,254 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589517215] [2025-04-25 12:35:46,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589517215] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 12:35:46,254 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [330596380] [2025-04-25 12:35:46,254 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-25 12:35:46,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 12:35:46,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 12:35:46,256 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-25 12:35:46,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-04-25 12:35:46,278 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 123 statements into 5 equivalence classes. [2025-04-25 12:35:46,306 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) and asserted 123 of 123 statements. [2025-04-25 12:35:46,306 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2025-04-25 12:35:46,306 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 12:35:46,309 WARN L254 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 176 conjuncts are in the unsatisfiable core [2025-04-25 12:35:46,311 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 12:35:53,000 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 0 proven. 139 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 12:35:53,000 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-25 12:36:01,380 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-25 12:36:01,380 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 117 treesize of output 417 [2025-04-25 12:36:06,077 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-25 12:36:06,078 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 241 treesize of output 523 [2025-04-25 12:36:07,156 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 0 proven. 139 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 12:36:07,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [330596380] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-25 12:36:07,156 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-25 12:36:07,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [57, 68, 68] total 180 [2025-04-25 12:36:07,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270606502] [2025-04-25 12:36:07,156 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-25 12:36:07,157 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 181 states [2025-04-25 12:36:07,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 12:36:07,158 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 181 interpolants. [2025-04-25 12:36:07,162 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1005, Invalid=31575, Unknown=0, NotChecked=0, Total=32580 [2025-04-25 12:36:07,162 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 12:36:07,162 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 12:36:07,163 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 181 states, 181 states have (on average 1.7734806629834254) internal successors, (321), 180 states have internal predecessors, (321), 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 12:36:07,163 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:36:07,163 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:36:07,163 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-04-25 12:36:07,163 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-25 12:36:07,163 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-25 12:36:07,163 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 12:36:07,163 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-04-25 12:36:07,163 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2025-04-25 12:36:07,163 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-04-25 12:36:07,163 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2025-04-25 12:36:07,163 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 110 states. [2025-04-25 12:36:07,163 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 152 states. [2025-04-25 12:36:07,163 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-04-25 12:36:07,163 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 12:36:45,157 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:36:45,157 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:36:45,157 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-25 12:36:45,157 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 12:36:45,158 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 12:36:45,158 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 12:36:45,158 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-25 12:36:45,158 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2025-04-25 12:36:45,158 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-25 12:36:45,158 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2025-04-25 12:36:45,158 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2025-04-25 12:36:45,158 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 152 states. [2025-04-25 12:36:45,158 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-04-25 12:36:45,158 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 247 states. [2025-04-25 12:36:45,164 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-04-25 12:36:45,358 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2025-04-25 12:36:45,358 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 12:36:45,358 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 12:36:45,359 INFO L139 ounterexampleChecker]: Examining path program with hash 1967457576, occurence #2 [2025-04-25 12:36:45,359 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-25 12:36:45,359 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2025-04-25 12:36:45,359 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 12:36:45,359 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 3 [2025-04-25 12:36:45,359 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 12:36:45,359 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2025-04-25 12:36:45,359 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 12:36:45,359 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 112 [2025-04-25 12:36:45,366 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 12:36:45,366 INFO L85 PathProgramCache]: Analyzing trace with hash -450440519, now seen corresponding path program 1 times [2025-04-25 12:36:45,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-04-25 12:36:45,366 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944575167] [2025-04-25 12:36:45,366 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-25 12:36:45,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 12:36:45,370 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 113 statements into 1 equivalence classes. [2025-04-25 12:36:45,375 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 113 of 113 statements. [2025-04-25 12:36:45,375 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 12:36:45,375 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 12:36:45,442 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2025-04-25 12:36:45,442 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2025-04-25 12:36:45,442 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944575167] [2025-04-25 12:36:45,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944575167] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 12:36:45,442 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1937692662] [2025-04-25 12:36:45,442 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-25 12:36:45,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 12:36:45,447 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 113 statements into 1 equivalence classes. [2025-04-25 12:36:45,452 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 113 of 113 statements. [2025-04-25 12:36:45,452 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 12:36:45,452 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 12:36:45,453 INFO L256 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-04-25 12:36:45,454 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 12:36:45,484 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2025-04-25 12:36:45,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1937692662] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-25 12:36:45,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-04-25 12:36:45,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2025-04-25 12:36:45,487 INFO L172 ounterexampleChecker]: Successfully proved commutativity at non-minimality point 112. Constructing proof automaton... [2025-04-25 12:36:45,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-25 12:36:45,487 INFO L311 artialOrderCegarLoop]: Commutativity proof succeeded, skipping feasibility check. [2025-04-25 12:36:45,487 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-25 12:36:45,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SMTINTERPOL [2025-04-25 12:36:45,488 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-25 12:36:45,488 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-04-25 12:36:45,488 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 12:36:45,488 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 12:36:45,488 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 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 12:36:45,488 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:36:45,488 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:36:45,488 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-04-25 12:36:45,488 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-25 12:36:45,488 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-25 12:36:45,488 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 12:36:45,488 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-04-25 12:36:45,488 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2025-04-25 12:36:45,488 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-04-25 12:36:45,488 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2025-04-25 12:36:45,488 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 110 states. [2025-04-25 12:36:45,488 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 152 states. [2025-04-25 12:36:45,488 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-04-25 12:36:45,488 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 247 states. [2025-04-25 12:36:45,488 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 12:36:50,567 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:36:50,568 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:36:50,568 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-25 12:36:50,568 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 12:36:50,568 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 12:36:50,568 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 12:36:50,568 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-25 12:36:50,568 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2025-04-25 12:36:50,568 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-04-25 12:36:50,568 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2025-04-25 12:36:50,568 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2025-04-25 12:36:50,568 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 159 states. [2025-04-25 12:36:50,568 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-04-25 12:36:50,569 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 258 states. [2025-04-25 12:36:50,569 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 12:36:50,569 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,SelfDestructingSolverStorable15 [2025-04-25 12:36:50,569 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 12:36:50,569 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 12:36:50,569 INFO L139 ounterexampleChecker]: Examining path program with hash 1168397139, occurence #1 [2025-04-25 12:36:50,569 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-25 12:36:50,569 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 12:36:50,569 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 12:36:50,569 INFO L85 PathProgramCache]: Analyzing trace with hash -654851108, now seen corresponding path program 10 times [2025-04-25 12:36:50,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 12:36:50,569 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702825948] [2025-04-25 12:36:50,569 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-25 12:36:50,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 12:36:50,573 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 131 statements into 2 equivalence classes. [2025-04-25 12:36:50,587 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 131 of 131 statements. [2025-04-25 12:36:50,587 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-04-25 12:36:50,587 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 12:36:50,795 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 56 proven. 122 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2025-04-25 12:36:50,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 12:36:50,795 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702825948] [2025-04-25 12:36:50,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702825948] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 12:36:50,795 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1316628464] [2025-04-25 12:36:50,795 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-25 12:36:50,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 12:36:50,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 12:36:50,797 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-25 12:36:50,798 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-04-25 12:36:50,826 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 131 statements into 2 equivalence classes. [2025-04-25 12:36:50,850 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 131 of 131 statements. [2025-04-25 12:36:50,850 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-04-25 12:36:50,850 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 12:36:50,856 INFO L256 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 34 conjuncts are in the unsatisfiable core [2025-04-25 12:36:50,858 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 12:36:50,961 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 11 treesize of output 7 [2025-04-25 12:36:50,975 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-04-25 12:36:50,975 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-25 12:36:51,023 INFO L325 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2025-04-25 12:36:51,023 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 13 treesize of output 12 [2025-04-25 12:36:51,082 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-04-25 12:36:51,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1316628464] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-25 12:36:51,082 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-25 12:36:51,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 8, 7] total 17 [2025-04-25 12:36:51,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776533962] [2025-04-25 12:36:51,082 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-25 12:36:51,083 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-04-25 12:36:51,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 12:36:51,083 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-04-25 12:36:51,083 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2025-04-25 12:36:51,083 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 12:36:51,083 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 12:36:51,083 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.166666666666667) internal successors, (129), 17 states have internal predecessors, (129), 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 12:36:51,083 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:36:51,083 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:36:51,083 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-04-25 12:36:51,083 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-25 12:36:51,083 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-25 12:36:51,084 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 12:36:51,084 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-04-25 12:36:51,084 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2025-04-25 12:36:51,084 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2025-04-25 12:36:51,084 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2025-04-25 12:36:51,084 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 112 states. [2025-04-25 12:36:51,084 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 159 states. [2025-04-25 12:36:51,084 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-04-25 12:36:51,084 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 258 states. [2025-04-25 12:36:51,084 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 12:36:51,084 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 12:36:51,371 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:36:51,371 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:36:51,371 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-25 12:36:51,371 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 12:36:51,371 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 12:36:51,371 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 12:36:51,371 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-25 12:36:51,371 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2025-04-25 12:36:51,371 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-04-25 12:36:51,371 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2025-04-25 12:36:51,371 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2025-04-25 12:36:51,371 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 159 states. [2025-04-25 12:36:51,371 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-04-25 12:36:51,371 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 258 states. [2025-04-25 12:36:51,371 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 12:36:51,372 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-04-25 12:36:51,378 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-04-25 12:36:51,576 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2025-04-25 12:36:51,576 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 12:36:51,576 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 12:36:51,576 INFO L139 ounterexampleChecker]: Examining path program with hash 1687877860, occurence #1 [2025-04-25 12:36:51,576 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-25 12:36:51,576 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 12:36:51,576 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 12:36:51,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1634047596, now seen corresponding path program 11 times [2025-04-25 12:36:51,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 12:36:51,577 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212627147] [2025-04-25 12:36:51,577 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-25 12:36:51,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 12:36:51,581 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 146 statements into 7 equivalence classes. [2025-04-25 12:36:51,602 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) and asserted 146 of 146 statements. [2025-04-25 12:36:51,602 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2025-04-25 12:36:51,602 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 12:36:51,764 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 0 proven. 82 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-04-25 12:36:51,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 12:36:51,764 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212627147] [2025-04-25 12:36:51,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212627147] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 12:36:51,764 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2020047015] [2025-04-25 12:36:51,764 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-25 12:36:51,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 12:36:51,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 12:36:51,766 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-25 12:36:51,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-04-25 12:36:51,793 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 146 statements into 7 equivalence classes. [2025-04-25 12:36:51,826 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) and asserted 146 of 146 statements. [2025-04-25 12:36:51,826 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2025-04-25 12:36:51,826 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 12:36:51,828 INFO L256 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 34 conjuncts are in the unsatisfiable core [2025-04-25 12:36:51,829 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 12:36:51,956 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 11 treesize of output 7 [2025-04-25 12:36:51,972 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 0 proven. 82 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-04-25 12:36:51,972 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-25 12:36:52,032 INFO L325 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2025-04-25 12:36:52,032 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 13 treesize of output 12 [2025-04-25 12:36:52,099 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 0 proven. 82 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-04-25 12:36:52,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2020047015] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-25 12:36:52,099 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-25 12:36:52,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 14 [2025-04-25 12:36:52,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110072369] [2025-04-25 12:36:52,099 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-25 12:36:52,099 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-04-25 12:36:52,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 12:36:52,100 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-04-25 12:36:52,100 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2025-04-25 12:36:52,100 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 12:36:52,100 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 12:36:52,100 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 8.266666666666667) internal successors, (124), 14 states have internal predecessors, (124), 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 12:36:52,100 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:36:52,100 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:36:52,100 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-04-25 12:36:52,100 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-25 12:36:52,100 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-25 12:36:52,100 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 12:36:52,100 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-04-25 12:36:52,100 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2025-04-25 12:36:52,100 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2025-04-25 12:36:52,100 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2025-04-25 12:36:52,100 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 112 states. [2025-04-25 12:36:52,100 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 159 states. [2025-04-25 12:36:52,100 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-04-25 12:36:52,100 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 258 states. [2025-04-25 12:36:52,100 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 12:36:52,100 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2025-04-25 12:36:52,100 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 12:36:52,303 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:36:52,303 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:36:52,303 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-25 12:36:52,303 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 12:36:52,303 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 12:36:52,303 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 12:36:52,303 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-25 12:36:52,303 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2025-04-25 12:36:52,303 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-04-25 12:36:52,303 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2025-04-25 12:36:52,303 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2025-04-25 12:36:52,303 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 159 states. [2025-04-25 12:36:52,303 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-04-25 12:36:52,303 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 258 states. [2025-04-25 12:36:52,303 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 12:36:52,303 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-04-25 12:36:52,303 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-04-25 12:36:52,309 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2025-04-25 12:36:52,504 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-04-25 12:36:52,504 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 12:36:52,504 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 12:36:52,504 INFO L139 ounterexampleChecker]: Examining path program with hash 1687877860, occurence #2 [2025-04-25 12:36:52,504 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-25 12:36:52,504 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2025-04-25 12:36:52,504 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 12:36:52,504 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 3 [2025-04-25 12:36:52,504 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 12:36:52,504 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2025-04-25 12:36:52,504 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 12:36:52,505 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 93 [2025-04-25 12:36:52,505 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-25 12:36:52,505 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 97 [2025-04-25 12:36:52,505 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-25 12:36:52,505 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 99 [2025-04-25 12:36:52,508 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 12:36:52,508 INFO L85 PathProgramCache]: Analyzing trace with hash -821843088, now seen corresponding path program 1 times [2025-04-25 12:36:52,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-04-25 12:36:52,508 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046470994] [2025-04-25 12:36:52,508 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-25 12:36:52,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 12:36:52,511 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 100 statements into 1 equivalence classes. [2025-04-25 12:36:52,514 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 100 of 100 statements. [2025-04-25 12:36:52,514 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 12:36:52,514 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 12:36:52,551 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2025-04-25 12:36:52,551 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2025-04-25 12:36:52,551 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046470994] [2025-04-25 12:36:52,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046470994] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-25 12:36:52,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-25 12:36:52,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-25 12:36:52,552 INFO L172 ounterexampleChecker]: Successfully proved commutativity at non-minimality point 99. Constructing proof automaton... [2025-04-25 12:36:52,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-25 12:36:52,552 INFO L311 artialOrderCegarLoop]: Commutativity proof succeeded, skipping feasibility check. [2025-04-25 12:36:52,552 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-25 12:36:52,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SMTINTERPOL [2025-04-25 12:36:52,553 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-25 12:36:52,553 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-04-25 12:36:52,553 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 12:36:52,553 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 12:36:52,553 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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 12:36:52,553 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:36:52,553 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:36:52,553 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-04-25 12:36:52,553 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-25 12:36:52,553 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-25 12:36:52,553 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 12:36:52,553 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-04-25 12:36:52,553 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2025-04-25 12:36:52,553 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2025-04-25 12:36:52,553 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2025-04-25 12:36:52,553 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 112 states. [2025-04-25 12:36:52,553 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 159 states. [2025-04-25 12:36:52,553 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-04-25 12:36:52,553 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 258 states. [2025-04-25 12:36:52,553 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 12:36:52,553 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2025-04-25 12:36:52,553 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2025-04-25 12:36:52,553 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 12:37:07,909 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:37:07,909 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 12:37:07,910 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-04-25 12:37:07,910 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 12:37:07,910 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 12:37:07,910 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-25 12:37:07,910 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2025-04-25 12:37:07,910 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2025-04-25 12:37:07,910 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-25 12:37:07,910 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2025-04-25 12:37:07,910 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2025-04-25 12:37:07,910 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 173 states. [2025-04-25 12:37:07,910 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-04-25 12:37:07,910 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 314 states. [2025-04-25 12:37:07,910 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 12:37:07,910 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-04-25 12:37:07,910 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2025-04-25 12:37:07,910 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-25 12:37:07,912 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2025-04-25 12:37:07,912 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2025-04-25 12:37:07,912 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2025-04-25 12:37:07,912 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2025-04-25 12:37:07,912 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-04-25 12:37:07,916 INFO L422 BasicCegarLoop]: Path program histogram: [11, 3, 1, 1] [2025-04-25 12:37:07,918 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-25 12:37:07,918 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-25 12:37:07,925 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 12:37:07,925 INFO L201 PluginConnector]: Adding new model queue-add-3-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.04 12:37:07 BasicIcfg [2025-04-25 12:37:07,925 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-25 12:37:07,926 INFO L158 Benchmark]: Toolchain (without parser) took 130217.13ms. Allocated memory was 167.8MB in the beginning and 788.5MB in the end (delta: 620.8MB). Free memory was 100.3MB in the beginning and 406.0MB in the end (delta: -305.7MB). Peak memory consumption was 315.1MB. Max. memory is 16.0GB. [2025-04-25 12:37:07,926 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.25ms. Allocated memory is still 167.8MB. Free memory was 101.5MB in the beginning and 100.3MB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.0GB. [2025-04-25 12:37:07,926 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.26ms. Allocated memory is still 167.8MB. Free memory was 100.3MB in the beginning and 94.1MB in the end (delta: 6.2MB). There was no memory consumed. Max. memory is 16.0GB. [2025-04-25 12:37:07,926 INFO L158 Benchmark]: Boogie Preprocessor took 15.67ms. Allocated memory is still 167.8MB. Free memory was 94.1MB in the beginning and 93.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.0GB. [2025-04-25 12:37:07,927 INFO L158 Benchmark]: RCFGBuilder took 209.70ms. Allocated memory is still 167.8MB. Free memory was 93.1MB in the beginning and 81.3MB in the end (delta: 11.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2025-04-25 12:37:07,927 INFO L158 Benchmark]: TraceAbstraction took 129953.36ms. Allocated memory was 167.8MB in the beginning and 788.5MB in the end (delta: 620.8MB). Free memory was 81.3MB in the beginning and 406.0MB in the end (delta: -324.7MB). Peak memory consumption was 298.3MB. Max. memory is 16.0GB. [2025-04-25 12:37:07,927 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 0.25ms. Allocated memory is still 167.8MB. Free memory was 101.5MB in the beginning and 100.3MB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 35.26ms. Allocated memory is still 167.8MB. Free memory was 100.3MB in the beginning and 94.1MB in the end (delta: 6.2MB). There was no memory consumed. Max. memory is 16.0GB. * Boogie Preprocessor took 15.67ms. Allocated memory is still 167.8MB. Free memory was 94.1MB in the beginning and 93.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 209.70ms. Allocated memory is still 167.8MB. Free memory was 93.1MB in the beginning and 81.3MB in the end (delta: 11.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 129953.36ms. Allocated memory was 167.8MB in the beginning and 788.5MB in the end (delta: 620.8MB). Free memory was 81.3MB in the beginning and 406.0MB in the end (delta: -324.7MB). Peak memory consumption was 298.3MB. 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: 22474, independent: 17611, independent conditional: 16355, independent unconditional: 1256, dependent: 4863, dependent conditional: 4860, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 17647, independent: 17611, independent conditional: 16355, independent unconditional: 1256, dependent: 36, dependent conditional: 33, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 17647, independent: 17611, independent conditional: 16355, independent unconditional: 1256, dependent: 36, dependent conditional: 33, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 19013, independent: 17611, independent conditional: 16355, independent unconditional: 1256, dependent: 1402, dependent conditional: 1399, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 19013, independent: 17611, independent conditional: 425, independent unconditional: 17186, dependent: 1402, dependent conditional: 237, dependent unconditional: 1165, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 19013, independent: 17611, independent conditional: 425, independent unconditional: 17186, dependent: 1402, dependent conditional: 237, dependent unconditional: 1165, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1077, independent: 1042, independent conditional: 32, independent unconditional: 1010, dependent: 35, dependent conditional: 32, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1077, independent: 1005, independent conditional: 0, independent unconditional: 1005, dependent: 72, dependent conditional: 0, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 72, independent: 37, independent conditional: 32, independent unconditional: 5, dependent: 35, dependent conditional: 32, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 72, independent: 37, independent conditional: 32, independent unconditional: 5, dependent: 35, dependent conditional: 32, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 95, independent: 49, independent conditional: 33, independent unconditional: 17, dependent: 45, dependent conditional: 37, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 2, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 19013, independent: 16569, independent conditional: 393, independent unconditional: 16176, dependent: 1367, dependent conditional: 205, dependent unconditional: 1162, unknown: 1077, unknown conditional: 64, unknown unconditional: 1013] , Statistics on independence cache: Total cache size (in pairs): 1079, Positive cache size: 1044, Positive conditional cache size: 34, Positive unconditional cache size: 1010, Negative cache size: 35, Negative conditional cache size: 32, Negative unconditional cache size: 3, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 17092, Maximal queried relation: 16, Independence queries for same thread: 4827, Persistent sets #1 benchmarks: Persistent set computation time: 0.1s, Number of persistent set computation: 271, Number of trivial persistent sets: 200, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1259, independent: 1256, independent conditional: 0, independent unconditional: 1256, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 22474, independent: 17611, independent conditional: 16355, independent unconditional: 1256, dependent: 4863, dependent conditional: 4860, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 17647, independent: 17611, independent conditional: 16355, independent unconditional: 1256, dependent: 36, dependent conditional: 33, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 17647, independent: 17611, independent conditional: 16355, independent unconditional: 1256, dependent: 36, dependent conditional: 33, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 19013, independent: 17611, independent conditional: 16355, independent unconditional: 1256, dependent: 1402, dependent conditional: 1399, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 19013, independent: 17611, independent conditional: 425, independent unconditional: 17186, dependent: 1402, dependent conditional: 237, dependent unconditional: 1165, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 19013, independent: 17611, independent conditional: 425, independent unconditional: 17186, dependent: 1402, dependent conditional: 237, dependent unconditional: 1165, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1077, independent: 1042, independent conditional: 32, independent unconditional: 1010, dependent: 35, dependent conditional: 32, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1077, independent: 1005, independent conditional: 0, independent unconditional: 1005, dependent: 72, dependent conditional: 0, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 72, independent: 37, independent conditional: 32, independent unconditional: 5, dependent: 35, dependent conditional: 32, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 72, independent: 37, independent conditional: 32, independent unconditional: 5, dependent: 35, dependent conditional: 32, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 95, independent: 49, independent conditional: 33, independent unconditional: 17, dependent: 45, dependent conditional: 37, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 2, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 19013, independent: 16569, independent conditional: 393, independent unconditional: 16176, dependent: 1367, dependent conditional: 205, dependent unconditional: 1162, unknown: 1077, unknown conditional: 64, unknown unconditional: 1013] , Statistics on independence cache: Total cache size (in pairs): 1079, Positive cache size: 1044, Positive conditional cache size: 34, Positive unconditional cache size: 1010, Negative cache size: 35, Negative conditional cache size: 32, Negative unconditional cache size: 3, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 17092, Maximal queried relation: 16, Independence queries for same thread: 4827 - PositiveResult [Line: 96]: 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, 71 locations, 76 edges, 4 error locations. Started 1 CEGAR loops. OverallTime: 129.8s, OverallIterations: 18, TraceHistogramMax: 0, PathProgramHistogramMax: 11, EmptinessCheckTime: 83.2s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 935, 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, 0.5s SatisfiabilityAnalysisTime, 42.7s InterpolantComputationTime, 2055 NumberOfCodeBlocks, 2055 NumberOfCodeBlocksAsserted, 66 NumberOfCheckSat, 2842 ConstructedInterpolants, 0 QuantifiedInterpolants, 42672 SizeOfPredicates, 111 NumberOfNonLiveVariables, 2397 ConjunctsInSsa, 626 ConjunctsInUnsatCore, 40 InterpolantComputations, 5 PerfectInterpolantSequences, 1368/2714 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: 2, ConComChecker Statistics: CheckTime [ms]: 175, ConditionCalculationTime [ms]: 9, ConditionCalculations: 8, QuantifiedConditions: 0, TraceChecks: 2, 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 12:37:07,956 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...