/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 -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/counter-fun.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-dev-ebd4107-m [2025-01-22 22:38:33,212 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-22 22:38:33,249 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../benchexec/../../../trunk/examples/settings/default/gemcutter/svcomp-Reach-32bit-GemCutter_Default.epf [2025-01-22 22:38:33,252 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-22 22:38:33,252 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-22 22:38:33,264 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-22 22:38:33,264 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-22 22:38:33,264 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-22 22:38:33,265 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-22 22:38:33,265 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-22 22:38:33,265 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-22 22:38:33,265 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-22 22:38:33,265 INFO L153 SettingsManager]: * Use SBE=true [2025-01-22 22:38:33,265 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-22 22:38:33,265 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-22 22:38:33,265 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-22 22:38:33,265 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-22 22:38:33,265 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-22 22:38:33,265 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-22 22:38:33,265 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-22 22:38:33,265 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-22 22:38:33,265 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-22 22:38:33,266 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-22 22:38:33,266 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-22 22:38:33,266 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-22 22:38:33,266 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-22 22:38:33,266 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-22 22:38:33,266 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-22 22:38:33,266 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-22 22:38:33,266 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-22 22:38:33,266 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-22 22:38:33,266 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-22 22:38:33,266 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-22 22:38:33,266 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-22 22:38:33,266 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-01-22 22:38:33,266 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-22 22:38:33,266 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-22 22:38:33,266 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-01-22 22:38:33,267 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-22 22:38:33,267 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-22 22:38:33,267 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-01-22 22:38:33,267 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-01-22 22:38:33,267 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-01-22 22:38:33,267 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 [2025-01-22 22:38:33,564 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-22 22:38:33,574 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-22 22:38:33,579 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-22 22:38:33,579 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-01-22 22:38:33,580 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-01-22 22:38:33,580 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/counter-fun.wvr.bpl [2025-01-22 22:38:33,585 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/counter-fun.wvr.bpl' [2025-01-22 22:38:33,611 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-22 22:38:33,612 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-01-22 22:38:33,613 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-22 22:38:33,613 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-22 22:38:33,613 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-22 22:38:33,621 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 10:38:33" (1/1) ... [2025-01-22 22:38:33,626 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 10:38:33" (1/1) ... [2025-01-22 22:38:33,631 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-01-22 22:38:33,631 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-22 22:38:33,632 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-22 22:38:33,632 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-22 22:38:33,632 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-22 22:38:33,636 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 10:38:33" (1/1) ... [2025-01-22 22:38:33,636 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 10:38:33" (1/1) ... [2025-01-22 22:38:33,637 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 10:38:33" (1/1) ... [2025-01-22 22:38:33,637 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 10:38:33" (1/1) ... [2025-01-22 22:38:33,638 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 10:38:33" (1/1) ... [2025-01-22 22:38:33,638 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 10:38:33" (1/1) ... [2025-01-22 22:38:33,641 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 10:38:33" (1/1) ... [2025-01-22 22:38:33,641 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 10:38:33" (1/1) ... [2025-01-22 22:38:33,642 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 10:38:33" (1/1) ... [2025-01-22 22:38:33,642 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-22 22:38:33,643 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-22 22:38:33,643 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-22 22:38:33,643 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-22 22:38:33,644 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 10:38:33" (1/1) ... [2025-01-22 22:38:33,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-22 22:38:33,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 22:38:33,665 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2025-01-22 22:38:33,675 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2025-01-22 22:38:33,694 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-01-22 22:38:33,694 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-01-22 22:38:33,694 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-01-22 22:38:33,694 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-01-22 22:38:33,694 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-01-22 22:38:33,694 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-01-22 22:38:33,694 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-01-22 22:38:33,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-22 22:38:33,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-22 22:38:33,695 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-22 22:38:33,728 INFO L234 CfgBuilder]: Building ICFG [2025-01-22 22:38:33,729 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-22 22:38:33,803 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-22 22:38:33,803 INFO L283 CfgBuilder]: Performing block encoding [2025-01-22 22:38:33,830 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-22 22:38:33,831 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-22 22:38:33,831 INFO L201 PluginConnector]: Adding new model counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.01 10:38:33 BoogieIcfgContainer [2025-01-22 22:38:33,831 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-22 22:38:33,833 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-22 22:38:33,833 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-22 22:38:33,836 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-22 22:38:33,836 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 10:38:33" (1/2) ... [2025-01-22 22:38:33,837 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a92c09e and model type counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.01 10:38:33, skipping insertion in model container [2025-01-22 22:38:33,837 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.01 10:38:33" (2/2) ... [2025-01-22 22:38:33,842 INFO L128 eAbstractionObserver]: Analyzing ICFG counter-fun.wvr.bpl [2025-01-22 22:38:33,851 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-22 22:38:33,853 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG counter-fun.wvr.bpl that has 3 procedures, 15 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2025-01-22 22:38:33,853 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-22 22:38:33,882 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-01-22 22:38:33,909 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-22 22:38:33,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-01-22 22:38:33,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 22:38:33,914 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-01-22 22:38:33,919 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-01-22 22:38:33,961 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-01-22 22:38:33,971 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-01-22 22:38:33,976 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@327978ad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-22 22:38:33,976 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-01-22 22:38:34,102 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-22 22:38:34,102 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-22 22:38:34,102 INFO L139 ounterexampleChecker]: Examining path program with hash -1302150382, occurence #1 [2025-01-22 22:38:34,102 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-22 22:38:34,102 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-22 22:38:34,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 22:38:34,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1330744387, now seen corresponding path program 1 times [2025-01-22 22:38:34,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 22:38:34,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094447967] [2025-01-22 22:38:34,135 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-22 22:38:34,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 22:38:34,171 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-01-22 22:38:34,189 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-01-22 22:38:34,189 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-22 22:38:34,189 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 22:38:34,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 22:38:34,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 22:38:34,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094447967] [2025-01-22 22:38:34,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094447967] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-22 22:38:34,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-22 22:38:34,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-22 22:38:34,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586004946] [2025-01-22 22:38:34,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-22 22:38:34,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-22 22:38:34,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 22:38:34,310 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-22 22:38:34,310 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-22 22:38:34,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 22:38:34,312 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 22:38:34,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-22 22:38:34,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 22:38:34,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-22 22:38:34,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-22 22:38:34,379 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-22 22:38:34,379 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-22 22:38:34,379 INFO L139 ounterexampleChecker]: Examining path program with hash 1964155569, occurence #1 [2025-01-22 22:38:34,379 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-22 22:38:34,379 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-22 22:38:34,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 22:38:34,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1776376927, now seen corresponding path program 1 times [2025-01-22 22:38:34,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 22:38:34,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819916222] [2025-01-22 22:38:34,380 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-22 22:38:34,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 22:38:34,384 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-01-22 22:38:34,392 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-01-22 22:38:34,392 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-22 22:38:34,392 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 22:38:34,511 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-22 22:38:34,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 22:38:34,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819916222] [2025-01-22 22:38:34,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819916222] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 22:38:34,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [169670654] [2025-01-22 22:38:34,511 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-22 22:38:34,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 22:38:34,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 22:38:34,516 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-22 22:38:34,525 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-22 22:38:34,547 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-01-22 22:38:34,554 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-01-22 22:38:34,554 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-22 22:38:34,554 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 22:38:34,555 INFO L256 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-22 22:38:34,558 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 22:38:34,674 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 22:38:34,675 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-22 22:38:34,776 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 22:38:34,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [169670654] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-22 22:38:34,776 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-22 22:38:34,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 5] total 12 [2025-01-22 22:38:34,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767877226] [2025-01-22 22:38:34,777 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-22 22:38:34,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-01-22 22:38:34,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 22:38:34,778 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-01-22 22:38:34,778 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2025-01-22 22:38:34,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 22:38:34,778 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 22:38:34,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 12 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-22 22:38:34,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-22 22:38:34,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 22:38:35,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-22 22:38:35,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-22 22:38:35,242 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-01-22 22:38:35,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 22:38:35,436 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-22 22:38:35,436 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-22 22:38:35,436 INFO L139 ounterexampleChecker]: Examining path program with hash -1049548992, occurence #1 [2025-01-22 22:38:35,436 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-22 22:38:35,436 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-22 22:38:35,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 22:38:35,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1427175941, now seen corresponding path program 2 times [2025-01-22 22:38:35,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 22:38:35,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060650341] [2025-01-22 22:38:35,437 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-22 22:38:35,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 22:38:35,445 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 27 statements into 2 equivalence classes. [2025-01-22 22:38:35,454 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 27 of 27 statements. [2025-01-22 22:38:35,454 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-22 22:38:35,454 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 22:38:35,632 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-01-22 22:38:35,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 22:38:35,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060650341] [2025-01-22 22:38:35,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060650341] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-22 22:38:35,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-22 22:38:35,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-22 22:38:35,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235672777] [2025-01-22 22:38:35,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-22 22:38:35,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-22 22:38:35,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 22:38:35,633 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-22 22:38:35,633 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-01-22 22:38:35,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 22:38:35,634 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 22:38:35,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 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) [2025-01-22 22:38:35,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-22 22:38:35,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-01-22 22:38:35,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 22:38:35,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-22 22:38:35,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-22 22:38:35,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-22 22:38:35,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-22 22:38:35,698 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-22 22:38:35,698 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-22 22:38:35,698 INFO L139 ounterexampleChecker]: Examining path program with hash 1212055886, occurence #1 [2025-01-22 22:38:35,698 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-22 22:38:35,698 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-22 22:38:35,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 22:38:35,698 INFO L85 PathProgramCache]: Analyzing trace with hash -1167308195, now seen corresponding path program 3 times [2025-01-22 22:38:35,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 22:38:35,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767618913] [2025-01-22 22:38:35,699 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-22 22:38:35,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 22:38:35,706 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 33 statements into 5 equivalence classes. [2025-01-22 22:38:35,715 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) and asserted 33 of 33 statements. [2025-01-22 22:38:35,716 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2025-01-22 22:38:35,716 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 22:38:35,868 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-01-22 22:38:35,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 22:38:35,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767618913] [2025-01-22 22:38:35,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767618913] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 22:38:35,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1414114002] [2025-01-22 22:38:35,869 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-22 22:38:35,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 22:38:35,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 22:38:35,873 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-22 22:38:35,874 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-22 22:38:35,897 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 33 statements into 5 equivalence classes. [2025-01-22 22:38:35,910 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) and asserted 33 of 33 statements. [2025-01-22 22:38:35,911 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2025-01-22 22:38:35,911 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 22:38:35,911 INFO L256 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-01-22 22:38:35,912 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 22:38:36,207 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 5 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 22:38:36,207 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-22 22:38:36,485 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 5 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 22:38:36,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1414114002] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-22 22:38:36,485 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-22 22:38:36,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 14, 14] total 31 [2025-01-22 22:38:36,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174415481] [2025-01-22 22:38:36,485 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-22 22:38:36,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2025-01-22 22:38:36,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 22:38:36,486 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2025-01-22 22:38:36,488 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=296, Invalid=696, Unknown=0, NotChecked=0, Total=992 [2025-01-22 22:38:36,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 22:38:36,488 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 22:38:36,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 2.375) internal successors, (76), 31 states have internal predecessors, (76), 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) [2025-01-22 22:38:36,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-22 22:38:36,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-01-22 22:38:36,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-22 22:38:36,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 22:38:37,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-22 22:38:37,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-22 22:38:37,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-22 22:38:37,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2025-01-22 22:38:37,146 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-22 22:38:37,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 22:38:37,341 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-22 22:38:37,341 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-22 22:38:37,341 INFO L139 ounterexampleChecker]: Examining path program with hash 1485015623, occurence #1 [2025-01-22 22:38:37,341 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-22 22:38:37,341 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-22 22:38:37,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 22:38:37,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1716332345, now seen corresponding path program 4 times [2025-01-22 22:38:37,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 22:38:37,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468727731] [2025-01-22 22:38:37,343 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-22 22:38:37,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 22:38:37,351 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 39 statements into 2 equivalence classes. [2025-01-22 22:38:37,355 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-01-22 22:38:37,355 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-01-22 22:38:37,355 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 22:38:37,489 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 13 proven. 13 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2025-01-22 22:38:37,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 22:38:37,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468727731] [2025-01-22 22:38:37,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468727731] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 22:38:37,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [756359840] [2025-01-22 22:38:37,489 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-22 22:38:37,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 22:38:37,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 22:38:37,491 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-22 22:38:37,493 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-22 22:38:37,509 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 39 statements into 2 equivalence classes. [2025-01-22 22:38:37,520 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-01-22 22:38:37,520 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-01-22 22:38:37,520 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 22:38:37,521 INFO L256 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 19 conjuncts are in the unsatisfiable core [2025-01-22 22:38:37,522 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 22:38:37,793 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 1 proven. 97 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 22:38:37,793 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-22 22:38:38,195 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 1 proven. 97 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 22:38:38,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [756359840] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-22 22:38:38,195 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-22 22:38:38,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 17, 17] total 37 [2025-01-22 22:38:38,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662421146] [2025-01-22 22:38:38,195 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-22 22:38:38,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2025-01-22 22:38:38,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 22:38:38,196 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2025-01-22 22:38:38,197 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=309, Invalid=1097, Unknown=0, NotChecked=0, Total=1406 [2025-01-22 22:38:38,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 22:38:38,197 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 22:38:38,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 2.263157894736842) internal successors, (86), 37 states have internal predecessors, (86), 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) [2025-01-22 22:38:38,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-22 22:38:38,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-01-22 22:38:38,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-22 22:38:38,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2025-01-22 22:38:38,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 22:38:40,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-22 22:38:40,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-22 22:38:40,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-22 22:38:40,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2025-01-22 22:38:40,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2025-01-22 22:38:40,081 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-01-22 22:38:40,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 22:38:40,276 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-22 22:38:40,277 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-22 22:38:40,277 INFO L139 ounterexampleChecker]: Examining path program with hash 325738303, occurence #1 [2025-01-22 22:38:40,277 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-22 22:38:40,277 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-22 22:38:40,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 22:38:40,277 INFO L85 PathProgramCache]: Analyzing trace with hash -735729611, now seen corresponding path program 5 times [2025-01-22 22:38:40,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 22:38:40,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501814371] [2025-01-22 22:38:40,277 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-22 22:38:40,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 22:38:40,281 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 51 statements into 9 equivalence classes. [2025-01-22 22:38:40,291 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) and asserted 51 of 51 statements. [2025-01-22 22:38:40,291 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2025-01-22 22:38:40,291 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 22:38:40,425 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 1 proven. 39 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2025-01-22 22:38:40,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 22:38:40,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501814371] [2025-01-22 22:38:40,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501814371] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 22:38:40,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1660346732] [2025-01-22 22:38:40,426 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-22 22:38:40,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 22:38:40,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 22:38:40,428 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-22 22:38:40,430 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-01-22 22:38:40,449 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 51 statements into 9 equivalence classes. [2025-01-22 22:38:40,467 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) and asserted 51 of 51 statements. [2025-01-22 22:38:40,468 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2025-01-22 22:38:40,468 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 22:38:40,468 INFO L256 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 25 conjuncts are in the unsatisfiable core [2025-01-22 22:38:40,473 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 22:38:40,918 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 5 proven. 152 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 22:38:40,918 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-22 22:38:41,261 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 5 proven. 152 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 22:38:41,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1660346732] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-22 22:38:41,261 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-22 22:38:41,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 23, 23] total 49 [2025-01-22 22:38:41,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790127032] [2025-01-22 22:38:41,261 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-22 22:38:41,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2025-01-22 22:38:41,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 22:38:41,262 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2025-01-22 22:38:41,263 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=738, Invalid=1712, Unknown=0, NotChecked=0, Total=2450 [2025-01-22 22:38:41,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 22:38:41,263 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 22:38:41,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 2.2) internal successors, (110), 49 states have internal predecessors, (110), 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) [2025-01-22 22:38:41,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-22 22:38:41,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-01-22 22:38:41,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-22 22:38:41,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2025-01-22 22:38:41,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2025-01-22 22:38:41,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 22:38:42,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-22 22:38:42,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-22 22:38:42,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-22 22:38:42,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2025-01-22 22:38:42,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2025-01-22 22:38:42,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2025-01-22 22:38:42,354 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-01-22 22:38:42,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 22:38:42,552 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-22 22:38:42,552 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-22 22:38:42,552 INFO L139 ounterexampleChecker]: Examining path program with hash -548346795, occurence #1 [2025-01-22 22:38:42,552 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-22 22:38:42,552 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-22 22:38:42,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 22:38:42,552 INFO L85 PathProgramCache]: Analyzing trace with hash -44359239, now seen corresponding path program 6 times [2025-01-22 22:38:42,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 22:38:42,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730794794] [2025-01-22 22:38:42,553 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-22 22:38:42,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 22:38:42,559 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 61 statements into 13 equivalence classes. [2025-01-22 22:38:42,570 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) and asserted 61 of 61 statements. [2025-01-22 22:38:42,570 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2025-01-22 22:38:42,570 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 22:38:42,991 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 32 proven. 84 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2025-01-22 22:38:42,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 22:38:42,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730794794] [2025-01-22 22:38:42,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730794794] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 22:38:42,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [83747424] [2025-01-22 22:38:42,992 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-22 22:38:42,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 22:38:42,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 22:38:42,993 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-22 22:38:42,999 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-01-22 22:38:43,021 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 61 statements into 13 equivalence classes. [2025-01-22 22:38:43,057 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) and asserted 61 of 61 statements. [2025-01-22 22:38:43,058 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2025-01-22 22:38:43,058 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 22:38:43,064 INFO L256 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 93 conjuncts are in the unsatisfiable core [2025-01-22 22:38:43,067 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 22:38:43,272 INFO L349 Elim1Store]: treesize reduction 13, result has 48.0 percent of original size [2025-01-22 22:38:43,272 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 55 treesize of output 44 [2025-01-22 22:38:43,324 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 31 proven. 68 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2025-01-22 22:38:43,324 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-22 22:38:43,710 INFO L349 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2025-01-22 22:38:43,710 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 50 [2025-01-22 22:38:43,716 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-22 22:38:43,716 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 28 [2025-01-22 22:38:43,721 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 70 proven. 97 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2025-01-22 22:38:43,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [83747424] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-22 22:38:43,721 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-22 22:38:43,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 10] total 18 [2025-01-22 22:38:43,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327492538] [2025-01-22 22:38:43,721 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-22 22:38:43,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-01-22 22:38:43,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 22:38:43,722 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-01-22 22:38:43,722 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2025-01-22 22:38:43,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 22:38:43,722 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 22:38:43,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.789473684210526) internal successors, (53), 18 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-22 22:38:43,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-22 22:38:43,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-01-22 22:38:43,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-22 22:38:43,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2025-01-22 22:38:43,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2025-01-22 22:38:43,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2025-01-22 22:38:43,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 22:38:43,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-22 22:38:43,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-22 22:38:43,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-22 22:38:43,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2025-01-22 22:38:43,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2025-01-22 22:38:43,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2025-01-22 22:38:43,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-22 22:38:43,929 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-01-22 22:38:44,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 22:38:44,127 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-22 22:38:44,127 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-22 22:38:44,127 INFO L139 ounterexampleChecker]: Examining path program with hash 183396370, occurence #1 [2025-01-22 22:38:44,127 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-22 22:38:44,127 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-22 22:38:44,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 22:38:44,127 INFO L85 PathProgramCache]: Analyzing trace with hash 2102676473, now seen corresponding path program 7 times [2025-01-22 22:38:44,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 22:38:44,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168511560] [2025-01-22 22:38:44,127 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-01-22 22:38:44,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 22:38:44,131 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-01-22 22:38:44,137 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-01-22 22:38:44,137 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-22 22:38:44,137 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 22:38:44,488 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 124 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2025-01-22 22:38:44,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 22:38:44,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168511560] [2025-01-22 22:38:44,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168511560] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 22:38:44,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1744019653] [2025-01-22 22:38:44,488 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-01-22 22:38:44,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 22:38:44,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 22:38:44,493 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-22 22:38:44,494 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-01-22 22:38:44,517 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-01-22 22:38:44,553 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-01-22 22:38:44,553 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-22 22:38:44,553 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 22:38:44,557 INFO L256 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 101 conjuncts are in the unsatisfiable core [2025-01-22 22:38:44,559 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 22:38:44,827 INFO L349 Elim1Store]: treesize reduction 45, result has 44.4 percent of original size [2025-01-22 22:38:44,827 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 101 treesize of output 84 [2025-01-22 22:38:46,504 INFO L349 Elim1Store]: treesize reduction 96, result has 88.6 percent of original size [2025-01-22 22:38:46,504 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 15 select indices, 15 select index equivalence classes, 0 disjoint index pairs (out of 105 index pairs), introduced 26 new quantified variables, introduced 105 case distinctions, treesize of input 85 treesize of output 806 [2025-01-22 22:40:14,274 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 20 proven. 88 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2025-01-22 22:40:14,274 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-22 22:40:15,022 INFO L349 Elim1Store]: treesize reduction 180, result has 20.0 percent of original size [2025-01-22 22:40:15,022 INFO L378 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 15 new quantified variables, introduced 28 case distinctions, treesize of input 184 treesize of output 120 [2025-01-22 22:40:15,040 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-22 22:40:15,040 INFO L378 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 7 new quantified variables, introduced 6 case distinctions, treesize of input 120 treesize of output 100 [2025-01-22 22:40:15,057 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 74 proven. 150 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2025-01-22 22:40:15,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1744019653] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-22 22:40:15,058 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-22 22:40:15,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 12, 19] total 31 [2025-01-22 22:40:15,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991425228] [2025-01-22 22:40:15,058 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-22 22:40:15,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2025-01-22 22:40:15,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 22:40:15,059 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2025-01-22 22:40:15,059 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=865, Unknown=0, NotChecked=0, Total=992 [2025-01-22 22:40:15,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 22:40:15,059 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 22:40:15,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 2.5625) internal successors, (82), 31 states have internal predecessors, (82), 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) [2025-01-22 22:40:15,059 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-22 22:40:15,059 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-01-22 22:40:15,059 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-22 22:40:15,059 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2025-01-22 22:40:15,059 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2025-01-22 22:40:15,059 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2025-01-22 22:40:15,059 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-22 22:40:15,059 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 22:40:15,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-22 22:40:15,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-22 22:40:15,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-22 22:40:15,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2025-01-22 22:40:15,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2025-01-22 22:40:15,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2025-01-22 22:40:15,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-22 22:40:15,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-22 22:40:15,434 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-01-22 22:40:15,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 22:40:15,632 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-22 22:40:15,632 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-22 22:40:15,632 INFO L139 ounterexampleChecker]: Examining path program with hash 183396370, occurence #2 [2025-01-22 22:40:15,632 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-22 22:40:15,633 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 47 [2025-01-22 22:40:15,633 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-22 22:40:15,633 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 49 [2025-01-22 22:40:15,633 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-22 22:40:15,633 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 51 [2025-01-22 22:40:15,633 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-22 22:40:15,633 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 53 [2025-01-22 22:40:15,633 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-22 22:40:15,633 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 55 [2025-01-22 22:40:15,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 22:40:15,645 INFO L85 PathProgramCache]: Analyzing trace with hash 850715978, now seen corresponding path program 1 times [2025-01-22 22:40:15,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-22 22:40:15,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901530272] [2025-01-22 22:40:15,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-22 22:40:15,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 22:40:15,648 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 56 statements into 1 equivalence classes. [2025-01-22 22:40:15,652 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 56 of 56 statements. [2025-01-22 22:40:15,652 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-22 22:40:15,652 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 22:40:15,697 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2025-01-22 22:40:15,697 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2025-01-22 22:40:15,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901530272] [2025-01-22 22:40:15,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901530272] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-22 22:40:15,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-22 22:40:15,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-22 22:40:15,698 INFO L172 ounterexampleChecker]: Successfully proved commutativity at non-minimality point 55. Constructing proof automaton... [2025-01-22 22:40:15,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-22 22:40:15,699 INFO L311 artialOrderCegarLoop]: Commutativity proof succeeded, skipping feasibility check. [2025-01-22 22:40:15,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-22 22:40:15,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SMTINTERPOL [2025-01-22 22:40:15,699 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-22 22:40:15,700 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-22 22:40:15,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 22:40:15,700 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 22:40:15,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-22 22:40:15,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-22 22:40:15,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-01-22 22:40:15,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-22 22:40:15,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2025-01-22 22:40:15,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2025-01-22 22:40:15,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2025-01-22 22:40:15,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-22 22:40:15,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-22 22:40:15,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 22:40:17,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-22 22:40:17,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-22 22:40:17,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-22 22:40:17,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2025-01-22 22:40:17,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2025-01-22 22:40:17,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2025-01-22 22:40:17,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-22 22:40:17,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-22 22:40:17,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-22 22:40:17,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-01-22 22:40:17,225 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-22 22:40:17,225 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-22 22:40:17,225 INFO L139 ounterexampleChecker]: Examining path program with hash 1590246915, occurence #1 [2025-01-22 22:40:17,225 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-22 22:40:17,225 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-22 22:40:17,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 22:40:17,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1691847455, now seen corresponding path program 8 times [2025-01-22 22:40:17,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 22:40:17,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143735333] [2025-01-22 22:40:17,226 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-22 22:40:17,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 22:40:17,231 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 95 statements into 2 equivalence classes. [2025-01-22 22:40:17,241 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 95 of 95 statements. [2025-01-22 22:40:17,241 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-22 22:40:17,241 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 22:40:17,577 INFO L134 CoverageAnalysis]: Checked inductivity of 766 backedges. 4 proven. 400 refuted. 0 times theorem prover too weak. 362 trivial. 0 not checked. [2025-01-22 22:40:17,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 22:40:17,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143735333] [2025-01-22 22:40:17,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143735333] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 22:40:17,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1648021811] [2025-01-22 22:40:17,577 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-22 22:40:17,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 22:40:17,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 22:40:17,579 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-22 22:40:17,580 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-01-22 22:40:17,602 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 95 statements into 2 equivalence classes. [2025-01-22 22:40:17,626 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 95 of 95 statements. [2025-01-22 22:40:17,626 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-22 22:40:17,626 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 22:40:17,627 INFO L256 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 47 conjuncts are in the unsatisfiable core [2025-01-22 22:40:17,629 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 22:40:18,582 INFO L134 CoverageAnalysis]: Checked inductivity of 766 backedges. 4 proven. 762 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 22:40:18,582 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-22 22:40:19,959 INFO L134 CoverageAnalysis]: Checked inductivity of 766 backedges. 4 proven. 762 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 22:40:19,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1648021811] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-22 22:40:19,960 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-22 22:40:19,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 45, 45] total 93 [2025-01-22 22:40:19,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704699901] [2025-01-22 22:40:19,961 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-22 22:40:19,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2025-01-22 22:40:19,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 22:40:19,962 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2025-01-22 22:40:19,965 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1660, Invalid=7082, Unknown=0, NotChecked=0, Total=8742 [2025-01-22 22:40:19,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 22:40:19,965 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 22:40:19,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 94 states, 94 states have (on average 2.106382978723404) internal successors, (198), 93 states have internal predecessors, (198), 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) [2025-01-22 22:40:19,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-22 22:40:19,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-01-22 22:40:19,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-22 22:40:19,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2025-01-22 22:40:19,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2025-01-22 22:40:19,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 103 states. [2025-01-22 22:40:19,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-22 22:40:19,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-22 22:40:19,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-22 22:40:19,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 22:40:23,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-22 22:40:23,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-22 22:40:23,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-22 22:40:23,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2025-01-22 22:40:23,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2025-01-22 22:40:23,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2025-01-22 22:40:23,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-22 22:40:23,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-22 22:40:23,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-22 22:40:23,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2025-01-22 22:40:23,559 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-01-22 22:40:23,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 22:40:23,757 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-22 22:40:23,757 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-22 22:40:23,757 INFO L139 ounterexampleChecker]: Examining path program with hash 1590246915, occurence #2 [2025-01-22 22:40:23,758 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-22 22:40:23,758 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 93 [2025-01-22 22:40:23,758 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-22 22:40:23,758 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 95 [2025-01-22 22:40:23,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 22:40:23,768 INFO L85 PathProgramCache]: Analyzing trace with hash 227011305, now seen corresponding path program 1 times [2025-01-22 22:40:23,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-01-22 22:40:23,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58433023] [2025-01-22 22:40:23,768 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-22 22:40:23,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 22:40:23,771 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 96 statements into 1 equivalence classes. [2025-01-22 22:40:23,782 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 96 of 96 statements. [2025-01-22 22:40:23,782 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-22 22:40:23,782 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 22:40:23,819 INFO L134 CoverageAnalysis]: Checked inductivity of 969 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 968 trivial. 0 not checked. [2025-01-22 22:40:23,819 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2025-01-22 22:40:23,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58433023] [2025-01-22 22:40:23,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58433023] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-22 22:40:23,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-22 22:40:23,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-22 22:40:23,820 INFO L172 ounterexampleChecker]: Successfully proved commutativity at non-minimality point 95. Constructing proof automaton... [2025-01-22 22:40:23,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-22 22:40:23,820 INFO L311 artialOrderCegarLoop]: Commutativity proof succeeded, skipping feasibility check. [2025-01-22 22:40:23,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-22 22:40:23,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SMTINTERPOL [2025-01-22 22:40:23,821 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-22 22:40:23,821 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-22 22:40:23,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 22:40:23,821 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 22:40:23,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-22 22:40:23,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-22 22:40:23,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-01-22 22:40:23,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-22 22:40:23,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2025-01-22 22:40:23,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2025-01-22 22:40:23,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 103 states. [2025-01-22 22:40:23,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-22 22:40:23,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-22 22:40:23,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-22 22:40:23,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 106 states. [2025-01-22 22:40:23,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 22:40:53,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-22 22:40:53,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-01-22 22:40:53,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-22 22:40:53,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2025-01-22 22:40:53,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2025-01-22 22:40:53,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 205 states. [2025-01-22 22:40:53,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-22 22:40:53,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-22 22:40:53,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-22 22:40:53,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 558 states. [2025-01-22 22:40:53,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-22 22:40:53,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-01-22 22:40:53,520 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-22 22:40:53,520 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-22 22:40:53,520 INFO L139 ounterexampleChecker]: Examining path program with hash -913678812, occurence #1 [2025-01-22 22:40:53,520 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-22 22:40:53,520 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-22 22:40:53,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 22:40:53,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1277051735, now seen corresponding path program 9 times [2025-01-22 22:40:53,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 22:40:53,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97400107] [2025-01-22 22:40:53,520 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-22 22:40:53,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 22:40:53,522 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 41 statements into 8 equivalence classes. [2025-01-22 22:40:53,526 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) and asserted 41 of 41 statements. [2025-01-22 22:40:53,526 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2025-01-22 22:40:53,526 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 22:40:53,622 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 1 proven. 80 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2025-01-22 22:40:53,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 22:40:53,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97400107] [2025-01-22 22:40:53,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97400107] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 22:40:53,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [13022624] [2025-01-22 22:40:53,622 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-22 22:40:53,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 22:40:53,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 22:40:53,627 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-22 22:40:53,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-01-22 22:40:53,648 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 41 statements into 8 equivalence classes. [2025-01-22 22:40:53,664 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) and asserted 41 of 41 statements. [2025-01-22 22:40:53,664 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2025-01-22 22:40:53,664 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 22:40:53,665 INFO L256 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 67 conjuncts are in the unsatisfiable core [2025-01-22 22:40:53,666 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 22:40:53,746 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2025-01-22 22:40:53,746 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-22 22:40:53,861 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2025-01-22 22:40:53,861 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 22 [2025-01-22 22:40:53,862 INFO L378 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 12 treesize of output 8 [2025-01-22 22:40:53,865 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 7 proven. 15 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2025-01-22 22:40:53,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [13022624] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-22 22:40:53,866 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-22 22:40:53,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 10 [2025-01-22 22:40:53,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778960988] [2025-01-22 22:40:53,866 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-22 22:40:53,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-01-22 22:40:53,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 22:40:53,866 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-01-22 22:40:53,866 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2025-01-22 22:40:53,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 22:40:53,866 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 22:40:53,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 10 states have internal predecessors, (37), 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) [2025-01-22 22:40:53,866 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-01-22 22:40:53,866 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2025-01-22 22:40:53,867 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-22 22:40:53,867 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2025-01-22 22:40:53,867 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 109 states. [2025-01-22 22:40:53,867 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 205 states. [2025-01-22 22:40:53,867 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-22 22:40:53,867 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-22 22:40:53,867 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-22 22:40:53,867 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 558 states. [2025-01-22 22:40:53,867 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-22 22:40:53,867 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 22:40:54,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-22 22:40:54,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-01-22 22:40:54,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-22 22:40:54,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2025-01-22 22:40:54,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2025-01-22 22:40:54,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 206 states. [2025-01-22 22:40:54,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-22 22:40:54,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-22 22:40:54,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-22 22:40:54,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 559 states. [2025-01-22 22:40:54,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-22 22:40:54,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-22 22:40:54,570 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2025-01-22 22:40:54,570 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2025-01-22 22:40:54,571 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2025-01-22 22:40:54,576 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-01-22 22:40:54,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 22:40:54,780 INFO L422 BasicCegarLoop]: Path program histogram: [9, 1] [2025-01-22 22:40:54,783 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-01-22 22:40:54,783 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-22 22:40:54,794 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2025-01-22 22:40:54,794 INFO L201 PluginConnector]: Adding new model counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.01 10:40:54 BasicIcfg [2025-01-22 22:40:54,794 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-22 22:40:54,796 INFO L158 Benchmark]: Toolchain (without parser) took 141182.86ms. Allocated memory was 117.4MB in the beginning and 2.1GB in the end (delta: 2.0GB). Free memory was 81.1MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 851.1MB. Max. memory is 16.0GB. [2025-01-22 22:40:54,796 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.13ms. Allocated memory is still 117.4MB. Free memory is still 82.1MB. There was no memory consumed. Max. memory is 16.0GB. [2025-01-22 22:40:54,797 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.92ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 79.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.0GB. [2025-01-22 22:40:54,797 INFO L158 Benchmark]: Boogie Preprocessor took 10.32ms. Allocated memory is still 117.4MB. Free memory was 79.8MB in the beginning and 79.1MB in the end (delta: 674.0kB). There was no memory consumed. Max. memory is 16.0GB. [2025-01-22 22:40:54,797 INFO L158 Benchmark]: RCFGBuilder took 187.98ms. Allocated memory is still 117.4MB. Free memory was 79.1MB in the beginning and 69.3MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.0GB. [2025-01-22 22:40:54,797 INFO L158 Benchmark]: TraceAbstraction took 140961.99ms. Allocated memory was 117.4MB in the beginning and 2.1GB in the end (delta: 2.0GB). Free memory was 68.7MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 842.7MB. Max. memory is 16.0GB. [2025-01-22 22:40:54,798 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 0.13ms. Allocated memory is still 117.4MB. Free memory is still 82.1MB. There was no memory consumed. Max. memory is 16.0GB. * Boogie Procedure Inliner took 18.92ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 79.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.0GB. * Boogie Preprocessor took 10.32ms. Allocated memory is still 117.4MB. Free memory was 79.8MB in the beginning and 79.1MB in the end (delta: 674.0kB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 187.98ms. Allocated memory is still 117.4MB. Free memory was 79.1MB in the beginning and 69.3MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.0GB. * TraceAbstraction took 140961.99ms. Allocated memory was 117.4MB in the beginning and 2.1GB in the end (delta: 2.0GB). Free memory was 68.7MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 842.7MB. 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: 6139, independent: 4614, independent conditional: 4520, independent unconditional: 94, dependent: 1525, dependent conditional: 1523, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4637, independent: 4614, independent conditional: 4520, independent unconditional: 94, dependent: 23, dependent conditional: 21, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 4637, independent: 4614, independent conditional: 4520, independent unconditional: 94, dependent: 23, dependent conditional: 21, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5899, independent: 4614, independent conditional: 4520, independent unconditional: 94, dependent: 1285, dependent conditional: 1283, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 5899, independent: 4614, independent conditional: 686, independent unconditional: 3928, dependent: 1285, dependent conditional: 575, dependent unconditional: 710, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 5899, independent: 4614, independent conditional: 686, independent unconditional: 3928, dependent: 1285, dependent conditional: 575, dependent unconditional: 710, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 345, independent: 94, independent conditional: 11, independent unconditional: 83, dependent: 251, dependent conditional: 249, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 345, independent: 82, independent conditional: 0, independent unconditional: 82, dependent: 263, dependent conditional: 0, dependent unconditional: 263, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 263, independent: 12, independent conditional: 11, independent unconditional: 1, dependent: 251, dependent conditional: 249, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 263, independent: 12, independent conditional: 11, independent unconditional: 1, dependent: 251, dependent conditional: 249, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2252, independent: 117, independent conditional: 92, independent unconditional: 25, dependent: 2135, dependent conditional: 2068, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 2, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 5899, independent: 4520, independent conditional: 675, independent unconditional: 3845, dependent: 1034, dependent conditional: 326, dependent unconditional: 708, unknown: 345, unknown conditional: 260, unknown unconditional: 85] , Statistics on independence cache: Total cache size (in pairs): 347, Positive cache size: 96, Positive conditional cache size: 13, Positive unconditional cache size: 83, Negative cache size: 251, Negative conditional cache size: 249, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 4542, Maximal queried relation: 10, Independence queries for same thread: 1502, Persistent sets #1 benchmarks: Persistent set computation time: 0.1s, Number of persistent set computation: 25, Number of trivial persistent sets: 21, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 96, independent: 94, independent conditional: 0, independent unconditional: 94, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 6139, independent: 4614, independent conditional: 4520, independent unconditional: 94, dependent: 1525, dependent conditional: 1523, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4637, independent: 4614, independent conditional: 4520, independent unconditional: 94, dependent: 23, dependent conditional: 21, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 4637, independent: 4614, independent conditional: 4520, independent unconditional: 94, dependent: 23, dependent conditional: 21, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5899, independent: 4614, independent conditional: 4520, independent unconditional: 94, dependent: 1285, dependent conditional: 1283, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 5899, independent: 4614, independent conditional: 686, independent unconditional: 3928, dependent: 1285, dependent conditional: 575, dependent unconditional: 710, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 5899, independent: 4614, independent conditional: 686, independent unconditional: 3928, dependent: 1285, dependent conditional: 575, dependent unconditional: 710, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 345, independent: 94, independent conditional: 11, independent unconditional: 83, dependent: 251, dependent conditional: 249, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 345, independent: 82, independent conditional: 0, independent unconditional: 82, dependent: 263, dependent conditional: 0, dependent unconditional: 263, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 263, independent: 12, independent conditional: 11, independent unconditional: 1, dependent: 251, dependent conditional: 249, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 263, independent: 12, independent conditional: 11, independent unconditional: 1, dependent: 251, dependent conditional: 249, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2252, independent: 117, independent conditional: 92, independent unconditional: 25, dependent: 2135, dependent conditional: 2068, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 2, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 5899, independent: 4520, independent conditional: 675, independent unconditional: 3845, dependent: 1034, dependent conditional: 326, dependent unconditional: 708, unknown: 345, unknown conditional: 260, unknown unconditional: 85] , Statistics on independence cache: Total cache size (in pairs): 347, Positive cache size: 96, Positive conditional cache size: 13, Positive unconditional cache size: 83, Negative cache size: 251, Negative conditional cache size: 249, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 4542, Maximal queried relation: 10, Independence queries for same thread: 1502 - PositiveResult [Line: 53]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 23 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 140.8s, OverallIterations: 12, TraceHistogramMax: 0, PathProgramHistogramMax: 9, EmptinessCheckTime: 40.4s, 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: 1022, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 98.0s InterpolantComputationTime, 846 NumberOfCodeBlocks, 846 NumberOfCodeBlocksAsserted, 83 NumberOfCheckSat, 1224 ConstructedInterpolants, 10 QuantifiedInterpolants, 17322 SizeOfPredicates, 32 NumberOfNonLiveVariables, 1370 ConjunctsInSsa, 375 ConjunctsInUnsatCore, 26 InterpolantComputations, 2 PerfectInterpolantSequences, 2088/5377 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]: 127, ConditionCalculationTime [ms]: 20, ConditionCalculations: 7, 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! [2025-01-22 22:40:55,008 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2025-01-22 22:40:55,056 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request...