/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data --traceabstraction.use.conditional.por.in.concurrent.analysis true --traceabstraction.commutativity.condition.synthesis SUFFICIENT -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerBplInline.xml -s ../benchexec/../../../trunk/examples/settings/default/gemcutter/svcomp-Reach-32bit-GemCutter_Default.epf --rcfgbuilder.only.consider.context.switches.at.boundaries.of.atomic.blocks false -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-2.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-dev-42d8767-m [2025-04-25 09:23:44,565 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-25 09:23:44,616 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../benchexec/../../../trunk/examples/settings/default/gemcutter/svcomp-Reach-32bit-GemCutter_Default.epf [2025-04-25 09:23:44,620 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-25 09:23:44,620 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-25 09:23:44,637 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-25 09:23:44,637 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-25 09:23:44,637 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-25 09:23:44,638 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-25 09:23:44,638 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-25 09:23:44,638 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-25 09:23:44,638 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-25 09:23:44,638 INFO L153 SettingsManager]: * Use SBE=true [2025-04-25 09:23:44,638 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-25 09:23:44,638 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-25 09:23:44,638 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-25 09:23:44,638 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-25 09:23:44,638 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-25 09:23:44,638 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-25 09:23:44,638 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-25 09:23:44,638 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-25 09:23:44,638 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-25 09:23:44,638 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-25 09:23:44,639 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-25 09:23:44,639 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-25 09:23:44,639 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-25 09:23:44,639 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-25 09:23:44,639 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-25 09:23:44,639 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-25 09:23:44,639 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-25 09:23:44,639 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-25 09:23:44,639 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-25 09:23:44,639 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-25 09:23:44,639 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-25 09:23:44,639 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-25 09:23:44,639 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-25 09:23:44,639 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-25 09:23:44,639 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-25 09:23:44,639 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-25 09:23:44,639 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-04-25 09:23:44,639 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-25 09:23:44,640 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-25 09:23:44,640 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-04-25 09:23:44,640 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-25 09:23:44,640 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-04-25 09:23:44,640 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-04-25 09:23:44,640 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-04-25 09:23:44,640 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use conditional POR in concurrent analysis -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> SUFFICIENT Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Only consider context switches at boundaries of atomic blocks -> false [2025-04-25 09:23:44,839 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-25 09:23:44,844 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-25 09:23:44,847 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-25 09:23:44,848 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-04-25 09:23:44,849 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-04-25 09:23:44,851 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-2.wvr.bpl [2025-04-25 09:23:44,852 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-2.wvr.bpl' [2025-04-25 09:23:44,868 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-25 09:23:44,869 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-04-25 09:23:44,869 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-25 09:23:44,869 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-25 09:23:44,869 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-25 09:23:44,877 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.04 09:23:44" (1/1) ... [2025-04-25 09:23:44,896 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.04 09:23:44" (1/1) ... [2025-04-25 09:23:44,901 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-04-25 09:23:44,902 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-25 09:23:44,903 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-25 09:23:44,904 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-25 09:23:44,904 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-25 09:23:44,908 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.04 09:23:44" (1/1) ... [2025-04-25 09:23:44,908 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.04 09:23:44" (1/1) ... [2025-04-25 09:23:44,910 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.04 09:23:44" (1/1) ... [2025-04-25 09:23:44,911 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.04 09:23:44" (1/1) ... [2025-04-25 09:23:44,913 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.04 09:23:44" (1/1) ... [2025-04-25 09:23:44,913 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.04 09:23:44" (1/1) ... [2025-04-25 09:23:44,915 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.04 09:23:44" (1/1) ... [2025-04-25 09:23:44,917 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.04 09:23:44" (1/1) ... [2025-04-25 09:23:44,917 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.04 09:23:44" (1/1) ... [2025-04-25 09:23:44,928 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-25 09:23:44,930 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-25 09:23:44,930 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-25 09:23:44,930 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-25 09:23:44,931 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.04 09:23:44" (1/1) ... [2025-04-25 09:23:44,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-25 09:23:44,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 09:23:44,956 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-25 09:23:44,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-25 09:23:44,973 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-04-25 09:23:44,974 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-25 09:23:44,974 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-25 09:23:44,974 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-04-25 09:23:44,974 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-25 09:23:44,974 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-25 09:23:44,974 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-04-25 09:23:44,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-25 09:23:44,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-25 09:23:44,975 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-25 09:23:45,005 INFO L234 CfgBuilder]: Building ICFG [2025-04-25 09:23:45,006 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-25 09:23:45,065 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-25 09:23:45,065 INFO L283 CfgBuilder]: Performing block encoding [2025-04-25 09:23:45,073 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-25 09:23:45,074 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-25 09:23:45,074 INFO L201 PluginConnector]: Adding new model misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.04 09:23:45 BoogieIcfgContainer [2025-04-25 09:23:45,074 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-25 09:23:45,076 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-25 09:23:45,076 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-25 09:23:45,081 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-25 09:23:45,081 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.04 09:23:44" (1/2) ... [2025-04-25 09:23:45,082 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@280e1bc5 and model type misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.04 09:23:45, skipping insertion in model container [2025-04-25 09:23:45,082 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.04 09:23:45" (2/2) ... [2025-04-25 09:23:45,083 INFO L128 eAbstractionObserver]: Analyzing ICFG misc-2.wvr.bpl [2025-04-25 09:23:45,092 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-25 09:23:45,094 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG misc-2.wvr.bpl that has 3 procedures, 26 locations, 27 edges, 1 initial locations, 2 loop locations, and 1 error locations. [2025-04-25 09:23:45,094 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-25 09:23:45,129 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-04-25 09:23:45,169 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-25 09:23:45,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-25 09:23:45,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 09:23:45,172 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-04-25 09:23:45,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-04-25 09:23:45,212 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-04-25 09:23:45,228 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-04-25 09:23:45,233 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2825f66e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-25 09:23:45,233 INFO L341 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-04-25 09:23:45,267 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-25 09:23:45,267 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 09:23:45,267 INFO L139 ounterexampleChecker]: Examining path program with hash -1898747362, occurence #1 [2025-04-25 09:23:45,267 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-25 09:23:45,267 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 09:23:45,270 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 09:23:45,270 INFO L85 PathProgramCache]: Analyzing trace with hash 322810124, now seen corresponding path program 1 times [2025-04-25 09:23:45,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 09:23:45,276 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951997298] [2025-04-25 09:23:45,276 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-25 09:23:45,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 09:23:45,323 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-04-25 09:23:45,331 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-04-25 09:23:45,331 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 09:23:45,331 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 09:23:45,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 09:23:45,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 09:23:45,384 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951997298] [2025-04-25 09:23:45,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951997298] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-25 09:23:45,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-25 09:23:45,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-25 09:23:45,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037385542] [2025-04-25 09:23:45,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-25 09:23:45,392 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-25 09:23:45,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 09:23:45,411 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-25 09:23:45,411 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-25 09:23:45,412 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 09:23:45,413 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 09:23:45,414 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-25 09:23:45,415 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 09:23:45,445 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 09:23:45,445 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-25 09:23:45,445 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-25 09:23:45,445 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 09:23:45,445 INFO L139 ounterexampleChecker]: Examining path program with hash -84034234, occurence #1 [2025-04-25 09:23:45,445 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-25 09:23:45,445 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 09:23:45,446 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 09:23:45,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1862561863, now seen corresponding path program 1 times [2025-04-25 09:23:45,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 09:23:45,446 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150339001] [2025-04-25 09:23:45,446 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-25 09:23:45,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 09:23:45,454 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-04-25 09:23:45,464 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-04-25 09:23:45,464 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 09:23:45,464 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 09:23:45,537 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 09:23:45,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 09:23:45,538 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150339001] [2025-04-25 09:23:45,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150339001] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-25 09:23:45,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-25 09:23:45,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-25 09:23:45,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376603741] [2025-04-25 09:23:45,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-25 09:23:45,539 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-25 09:23:45,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 09:23:45,539 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-25 09:23:45,539 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-25 09:23:45,539 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 09:23:45,539 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 09:23:45,540 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-25 09:23:45,540 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 09:23:45,540 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 09:23:45,658 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 09:23:45,660 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:23:45,660 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-25 09:23:45,660 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-25 09:23:45,660 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 09:23:45,660 INFO L139 ounterexampleChecker]: Examining path program with hash -1385360909, occurence #1 [2025-04-25 09:23:45,660 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-25 09:23:45,660 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 09:23:45,660 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 09:23:45,660 INFO L85 PathProgramCache]: Analyzing trace with hash 651566676, now seen corresponding path program 1 times [2025-04-25 09:23:45,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 09:23:45,661 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836758914] [2025-04-25 09:23:45,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-25 09:23:45,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 09:23:45,667 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-04-25 09:23:45,673 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-04-25 09:23:45,673 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 09:23:45,673 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 09:23:45,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 09:23:45,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 09:23:45,710 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836758914] [2025-04-25 09:23:45,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836758914] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-25 09:23:45,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-25 09:23:45,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-25 09:23:45,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825056331] [2025-04-25 09:23:45,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-25 09:23:45,710 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-25 09:23:45,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 09:23:45,711 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-25 09:23:45,711 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-25 09:23:45,711 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 09:23:45,711 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 09:23:45,711 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-25 09:23:45,711 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 09:23:45,711 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:23:45,711 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 09:23:45,802 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 09:23:45,802 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:23:45,802 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:23:45,802 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-25 09:23:45,803 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-25 09:23:45,803 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 09:23:45,803 INFO L139 ounterexampleChecker]: Examining path program with hash 285812203, occurence #1 [2025-04-25 09:23:45,803 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-25 09:23:45,803 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 09:23:45,803 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 09:23:45,803 INFO L85 PathProgramCache]: Analyzing trace with hash -738447275, now seen corresponding path program 1 times [2025-04-25 09:23:45,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 09:23:45,803 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568155594] [2025-04-25 09:23:45,803 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-25 09:23:45,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 09:23:45,811 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-04-25 09:23:45,821 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-04-25 09:23:45,821 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 09:23:45,821 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 09:23:45,912 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 09:23:45,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 09:23:45,912 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568155594] [2025-04-25 09:23:45,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568155594] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 09:23:45,912 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [613911206] [2025-04-25 09:23:45,912 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-25 09:23:45,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 09:23:45,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 09:23:45,917 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-25 09:23:45,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-04-25 09:23:45,941 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-04-25 09:23:45,952 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-04-25 09:23:45,952 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 09:23:45,952 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 09:23:45,953 INFO L256 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-04-25 09:23:45,967 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 09:23:46,132 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 09:23:46,132 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-25 09:23:46,197 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 09:23:46,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [613911206] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-25 09:23:46,197 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-25 09:23:46,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 9 [2025-04-25 09:23:46,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280652374] [2025-04-25 09:23:46,198 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-25 09:23:46,198 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-04-25 09:23:46,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 09:23:46,198 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-04-25 09:23:46,198 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2025-04-25 09:23:46,198 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 09:23:46,199 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 09:23:46,199 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 9 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-25 09:23:46,199 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 09:23:46,199 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:23:46,199 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:23:46,199 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 09:23:46,277 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 09:23:46,278 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:23:46,278 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:23:46,278 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 09:23:46,284 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-04-25 09:23:46,478 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 09:23:46,479 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-25 09:23:46,479 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 09:23:46,479 INFO L139 ounterexampleChecker]: Examining path program with hash 1460417692, occurence #1 [2025-04-25 09:23:46,479 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-25 09:23:46,479 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 09:23:46,479 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 09:23:46,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1625343147, now seen corresponding path program 2 times [2025-04-25 09:23:46,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 09:23:46,480 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299777141] [2025-04-25 09:23:46,480 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-25 09:23:46,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 09:23:46,485 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 26 statements into 2 equivalence classes. [2025-04-25 09:23:46,489 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 26 of 26 statements. [2025-04-25 09:23:46,489 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-25 09:23:46,489 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 09:23:46,517 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 09:23:46,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 09:23:46,517 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299777141] [2025-04-25 09:23:46,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299777141] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-25 09:23:46,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-25 09:23:46,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-25 09:23:46,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104940956] [2025-04-25 09:23:46,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-25 09:23:46,518 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-25 09:23:46,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 09:23:46,518 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-25 09:23:46,518 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-25 09:23:46,518 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 09:23:46,518 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 09:23:46,518 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-25 09:23:46,518 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 09:23:46,518 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:23:46,519 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:23:46,519 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 09:23:46,519 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 09:23:46,549 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 09:23:46,549 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:23:46,549 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:23:46,549 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 09:23:46,550 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 09:23:46,550 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-04-25 09:23:46,550 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-25 09:23:46,550 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 09:23:46,550 INFO L139 ounterexampleChecker]: Examining path program with hash -1847973973, occurence #1 [2025-04-25 09:23:46,550 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-25 09:23:46,550 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 09:23:46,550 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 09:23:46,550 INFO L85 PathProgramCache]: Analyzing trace with hash -42525493, now seen corresponding path program 1 times [2025-04-25 09:23:46,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 09:23:46,551 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698736115] [2025-04-25 09:23:46,551 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-25 09:23:46,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 09:23:46,554 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-04-25 09:23:46,557 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-04-25 09:23:46,557 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 09:23:46,557 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 09:23:46,602 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-25 09:23:46,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 09:23:46,602 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698736115] [2025-04-25 09:23:46,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698736115] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 09:23:46,602 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1668732798] [2025-04-25 09:23:46,602 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-25 09:23:46,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 09:23:46,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 09:23:46,604 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-25 09:23:46,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-04-25 09:23:46,623 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-04-25 09:23:46,630 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-04-25 09:23:46,630 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 09:23:46,630 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 09:23:46,630 INFO L256 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-04-25 09:23:46,631 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 09:23:46,661 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-25 09:23:46,662 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-25 09:23:46,763 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 09:23:46,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1668732798] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-25 09:23:46,763 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-25 09:23:46,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 5] total 7 [2025-04-25 09:23:46,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826811614] [2025-04-25 09:23:46,763 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-25 09:23:46,763 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-04-25 09:23:46,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 09:23:46,764 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-04-25 09:23:46,764 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-04-25 09:23:46,764 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 09:23:46,764 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 09:23:46,764 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-25 09:23:46,764 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 09:23:46,764 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:23:46,764 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:23:46,764 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 09:23:46,764 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-25 09:23:46,764 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 09:23:46,837 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 09:23:46,838 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:23:46,838 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:23:46,838 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 09:23:46,838 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 09:23:46,839 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 09:23:46,845 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-04-25 09:23:47,039 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 09:23:47,040 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-25 09:23:47,040 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 09:23:47,040 INFO L139 ounterexampleChecker]: Examining path program with hash 1272387834, occurence #1 [2025-04-25 09:23:47,040 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-25 09:23:47,040 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 09:23:47,041 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 09:23:47,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1532666942, now seen corresponding path program 2 times [2025-04-25 09:23:47,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 09:23:47,041 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003963040] [2025-04-25 09:23:47,041 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-25 09:23:47,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 09:23:47,045 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 31 statements into 2 equivalence classes. [2025-04-25 09:23:47,048 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 31 of 31 statements. [2025-04-25 09:23:47,048 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-25 09:23:47,048 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 09:23:47,077 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 09:23:47,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 09:23:47,077 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003963040] [2025-04-25 09:23:47,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003963040] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-25 09:23:47,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-25 09:23:47,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-25 09:23:47,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916703895] [2025-04-25 09:23:47,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-25 09:23:47,080 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-25 09:23:47,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 09:23:47,080 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-25 09:23:47,081 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-25 09:23:47,081 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 09:23:47,081 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 09:23:47,081 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-25 09:23:47,081 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 09:23:47,081 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:23:47,081 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:23:47,081 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 09:23:47,081 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-25 09:23:47,081 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 09:23:47,081 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 09:23:47,117 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 09:23:47,118 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:23:47,118 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:23:47,118 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 09:23:47,118 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 09:23:47,118 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 09:23:47,118 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 09:23:47,118 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-04-25 09:23:47,118 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-25 09:23:47,118 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 09:23:47,119 INFO L139 ounterexampleChecker]: Examining path program with hash -1772333772, occurence #1 [2025-04-25 09:23:47,119 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-25 09:23:47,119 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 09:23:47,119 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 09:23:47,119 INFO L85 PathProgramCache]: Analyzing trace with hash -135201698, now seen corresponding path program 1 times [2025-04-25 09:23:47,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 09:23:47,119 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516002098] [2025-04-25 09:23:47,119 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-25 09:23:47,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 09:23:47,122 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-04-25 09:23:47,128 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-04-25 09:23:47,128 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 09:23:47,128 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 09:23:47,210 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-25 09:23:47,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 09:23:47,210 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516002098] [2025-04-25 09:23:47,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516002098] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 09:23:47,210 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1815909414] [2025-04-25 09:23:47,210 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-25 09:23:47,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 09:23:47,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 09:23:47,213 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-25 09:23:47,215 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-04-25 09:23:47,231 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-04-25 09:23:47,238 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-04-25 09:23:47,238 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 09:23:47,239 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 09:23:47,239 INFO L256 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-04-25 09:23:47,241 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 09:23:47,288 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-25 09:23:47,288 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-25 09:23:47,320 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-25 09:23:47,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1815909414] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-25 09:23:47,321 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-25 09:23:47,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2025-04-25 09:23:47,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060584231] [2025-04-25 09:23:47,321 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-25 09:23:47,321 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-25 09:23:47,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 09:23:47,321 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-25 09:23:47,321 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-04-25 09:23:47,322 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 09:23:47,322 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 09:23:47,322 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-25 09:23:47,322 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 09:23:47,322 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:23:47,322 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:23:47,322 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 09:23:47,322 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-25 09:23:47,322 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 09:23:47,322 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-25 09:23:47,322 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 09:23:47,364 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 09:23:47,365 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:23:47,365 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:23:47,365 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 09:23:47,365 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 09:23:47,365 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-25 09:23:47,365 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 09:23:47,366 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-25 09:23:47,372 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-04-25 09:23:47,566 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 09:23:47,566 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-25 09:23:47,567 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 09:23:47,567 INFO L139 ounterexampleChecker]: Examining path program with hash 42379356, occurence #1 [2025-04-25 09:23:47,567 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-25 09:23:47,567 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 09:23:47,567 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 09:23:47,567 INFO L85 PathProgramCache]: Analyzing trace with hash 160786485, now seen corresponding path program 2 times [2025-04-25 09:23:47,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 09:23:47,567 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178188358] [2025-04-25 09:23:47,567 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-25 09:23:47,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 09:23:47,570 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 36 statements into 2 equivalence classes. [2025-04-25 09:23:47,573 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 36 of 36 statements. [2025-04-25 09:23:47,574 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-25 09:23:47,574 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 09:23:47,628 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-04-25 09:23:47,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 09:23:47,628 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178188358] [2025-04-25 09:23:47,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178188358] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-25 09:23:47,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-25 09:23:47,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-25 09:23:47,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588642807] [2025-04-25 09:23:47,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-25 09:23:47,629 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-25 09:23:47,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 09:23:47,629 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-25 09:23:47,629 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-04-25 09:23:47,629 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 09:23:47,629 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 09:23:47,629 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-25 09:23:47,629 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 09:23:47,629 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:23:47,630 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:23:47,630 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 09:23:47,630 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-25 09:23:47,630 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-25 09:23:47,630 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-25 09:23:47,630 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-25 09:23:47,630 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 09:23:47,680 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 09:23:47,680 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:23:47,680 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:23:47,680 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 09:23:47,680 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 09:23:47,680 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-25 09:23:47,680 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 09:23:47,681 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-25 09:23:47,681 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-25 09:23:47,682 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-04-25 09:23:47,682 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-25 09:23:47,682 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 09:23:47,682 INFO L139 ounterexampleChecker]: Examining path program with hash -1772333772, occurence #2 [2025-04-25 09:23:47,682 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-25 09:23:47,682 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 38 [2025-04-25 09:23:47,683 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 09:23:47,683 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 39 [2025-04-25 09:23:47,683 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-25 09:23:47,683 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-25 09:23:47,683 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 09:23:47,683 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 09:23:47,683 INFO L85 PathProgramCache]: Analyzing trace with hash 1720646951, now seen corresponding path program 3 times [2025-04-25 09:23:47,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 09:23:47,683 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312227985] [2025-04-25 09:23:47,683 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-25 09:23:47,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 09:23:47,690 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 41 statements into 4 equivalence classes. [2025-04-25 09:23:47,694 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) and asserted 41 of 41 statements. [2025-04-25 09:23:47,695 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2025-04-25 09:23:47,695 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 09:23:47,782 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 09:23:47,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 09:23:47,783 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312227985] [2025-04-25 09:23:47,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312227985] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 09:23:47,783 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [413712485] [2025-04-25 09:23:47,783 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-25 09:23:47,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 09:23:47,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 09:23:47,786 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-25 09:23:47,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-04-25 09:23:47,812 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 41 statements into 4 equivalence classes. [2025-04-25 09:23:47,821 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) and asserted 41 of 41 statements. [2025-04-25 09:23:47,822 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2025-04-25 09:23:47,822 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 09:23:47,822 INFO L256 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-04-25 09:23:47,823 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 09:23:47,926 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 09:23:47,927 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-25 09:23:48,001 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-25 09:23:48,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [413712485] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-25 09:23:48,001 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-25 09:23:48,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 5] total 13 [2025-04-25 09:23:48,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190291860] [2025-04-25 09:23:48,001 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-25 09:23:48,001 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-04-25 09:23:48,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 09:23:48,002 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-04-25 09:23:48,002 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2025-04-25 09:23:48,002 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 09:23:48,002 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 09:23:48,002 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.0) internal successors, (98), 13 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-25 09:23:48,002 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 09:23:48,002 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:23:48,002 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:23:48,002 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 09:23:48,002 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-25 09:23:48,002 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-25 09:23:48,003 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-25 09:23:48,003 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-25 09:23:48,003 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-25 09:23:48,003 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 09:23:48,201 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 09:23:48,201 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:23:48,201 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:23:48,201 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 09:23:48,201 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 09:23:48,201 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-25 09:23:48,201 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 09:23:48,201 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-25 09:23:48,201 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-25 09:23:48,201 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-04-25 09:23:48,207 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-04-25 09:23:48,406 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2025-04-25 09:23:48,406 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-25 09:23:48,406 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 09:23:48,406 INFO L139 ounterexampleChecker]: Examining path program with hash -1772333772, occurence #3 [2025-04-25 09:23:48,406 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-25 09:23:48,406 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 28 [2025-04-25 09:23:48,406 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 09:23:48,407 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 29 [2025-04-25 09:23:48,407 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-25 09:23:48,407 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-25 09:23:48,407 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 09:23:48,407 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 09:23:48,407 INFO L85 PathProgramCache]: Analyzing trace with hash -294038434, now seen corresponding path program 4 times [2025-04-25 09:23:48,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 09:23:48,407 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159709294] [2025-04-25 09:23:48,407 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-25 09:23:48,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 09:23:48,410 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 31 statements into 2 equivalence classes. [2025-04-25 09:23:48,412 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-04-25 09:23:48,412 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-04-25 09:23:48,412 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 09:23:48,447 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-25 09:23:48,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 09:23:48,448 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159709294] [2025-04-25 09:23:48,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159709294] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 09:23:48,448 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275482440] [2025-04-25 09:23:48,448 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-25 09:23:48,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 09:23:48,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 09:23:48,449 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-25 09:23:48,451 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-04-25 09:23:48,467 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 31 statements into 2 equivalence classes. [2025-04-25 09:23:48,473 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-04-25 09:23:48,473 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-04-25 09:23:48,474 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 09:23:48,474 INFO L256 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-04-25 09:23:48,475 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 09:23:48,501 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-25 09:23:48,501 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-25 09:23:48,530 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-25 09:23:48,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1275482440] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-25 09:23:48,530 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-25 09:23:48,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2025-04-25 09:23:48,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558138323] [2025-04-25 09:23:48,530 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-25 09:23:48,530 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-25 09:23:48,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 09:23:48,531 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-25 09:23:48,532 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-04-25 09:23:48,532 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 09:23:48,532 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 09:23:48,532 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-25 09:23:48,532 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 09:23:48,532 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:23:48,532 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:23:48,532 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 09:23:48,532 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-25 09:23:48,532 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-25 09:23:48,532 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-25 09:23:48,532 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-25 09:23:48,532 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-25 09:23:48,532 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-04-25 09:23:48,532 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 09:23:48,591 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 09:23:48,592 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:23:48,592 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:23:48,592 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 09:23:48,592 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 09:23:48,592 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-25 09:23:48,592 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 09:23:48,592 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-25 09:23:48,592 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-25 09:23:48,592 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-04-25 09:23:48,592 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-25 09:23:48,598 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-04-25 09:23:48,797 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 09:23:48,797 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-25 09:23:48,797 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 09:23:48,797 INFO L139 ounterexampleChecker]: Examining path program with hash -1772333772, occurence #4 [2025-04-25 09:23:48,797 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-25 09:23:48,797 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 28 [2025-04-25 09:23:48,797 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 09:23:48,797 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 29 [2025-04-25 09:23:48,797 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-25 09:23:48,797 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-25 09:23:48,797 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 09:23:48,798 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 09:23:48,798 INFO L85 PathProgramCache]: Analyzing trace with hash 14656606, now seen corresponding path program 5 times [2025-04-25 09:23:48,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 09:23:48,798 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591583159] [2025-04-25 09:23:48,798 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-25 09:23:48,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 09:23:48,801 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 31 statements into 3 equivalence classes. [2025-04-25 09:23:48,803 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) and asserted 31 of 31 statements. [2025-04-25 09:23:48,803 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2025-04-25 09:23:48,803 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 09:23:48,841 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-25 09:23:48,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 09:23:48,841 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591583159] [2025-04-25 09:23:48,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591583159] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 09:23:48,841 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1971064128] [2025-04-25 09:23:48,841 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-25 09:23:48,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 09:23:48,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 09:23:48,843 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-25 09:23:48,845 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-04-25 09:23:48,861 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 31 statements into 3 equivalence classes. [2025-04-25 09:23:48,867 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) and asserted 31 of 31 statements. [2025-04-25 09:23:48,867 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2025-04-25 09:23:48,867 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 09:23:48,868 INFO L256 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-04-25 09:23:48,868 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 09:23:48,894 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-25 09:23:48,894 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-25 09:23:48,920 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-25 09:23:48,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1971064128] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-25 09:23:48,920 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-25 09:23:48,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2025-04-25 09:23:48,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123410964] [2025-04-25 09:23:48,920 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-25 09:23:48,920 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-25 09:23:48,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 09:23:48,921 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-25 09:23:48,921 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-04-25 09:23:48,921 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 09:23:48,921 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 09:23:48,921 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-25 09:23:48,921 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 09:23:48,921 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:23:48,921 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:23:48,921 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 09:23:48,921 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-25 09:23:48,921 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-25 09:23:48,921 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-25 09:23:48,921 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-25 09:23:48,921 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-25 09:23:48,921 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-04-25 09:23:48,921 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-25 09:23:48,921 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 09:23:48,979 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 09:23:48,979 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:23:48,979 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:23:48,979 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 09:23:48,979 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 09:23:48,979 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-25 09:23:48,979 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 09:23:48,979 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-25 09:23:48,979 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-25 09:23:48,979 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-04-25 09:23:48,979 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-25 09:23:48,979 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-25 09:23:48,985 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-04-25 09:23:49,184 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2025-04-25 09:23:49,184 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-25 09:23:49,184 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-25 09:23:49,184 INFO L139 ounterexampleChecker]: Examining path program with hash -1772333772, occurence #5 [2025-04-25 09:23:49,184 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-25 09:23:49,184 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 28 [2025-04-25 09:23:49,184 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-25 09:23:49,184 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 29 [2025-04-25 09:23:49,184 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-25 09:23:49,184 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-25 09:23:49,184 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-25 09:23:49,185 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 09:23:49,185 INFO L85 PathProgramCache]: Analyzing trace with hash -144180130, now seen corresponding path program 6 times [2025-04-25 09:23:49,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 09:23:49,185 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789741366] [2025-04-25 09:23:49,185 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-04-25 09:23:49,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 09:23:49,190 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 31 statements into 3 equivalence classes. [2025-04-25 09:23:49,193 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) and asserted 31 of 31 statements. [2025-04-25 09:23:49,193 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2025-04-25 09:23:49,193 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 09:23:49,242 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-25 09:23:49,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 09:23:49,242 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789741366] [2025-04-25 09:23:49,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789741366] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-25 09:23:49,242 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [407200885] [2025-04-25 09:23:49,242 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-04-25 09:23:49,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 09:23:49,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 09:23:49,244 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-25 09:23:49,245 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-04-25 09:23:49,260 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 31 statements into 3 equivalence classes. [2025-04-25 09:23:49,265 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) and asserted 31 of 31 statements. [2025-04-25 09:23:49,265 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2025-04-25 09:23:49,265 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 09:23:49,265 INFO L256 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-04-25 09:23:49,266 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-25 09:23:49,299 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-25 09:23:49,299 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-25 09:23:49,326 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-25 09:23:49,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [407200885] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-25 09:23:49,327 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-25 09:23:49,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2025-04-25 09:23:49,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663887520] [2025-04-25 09:23:49,327 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-25 09:23:49,327 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-25 09:23:49,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 09:23:49,327 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-25 09:23:49,328 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-04-25 09:23:49,328 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 09:23:49,328 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 09:23:49,328 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-25 09:23:49,328 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 09:23:49,328 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:23:49,328 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:23:49,328 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-25 09:23:49,328 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-25 09:23:49,328 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-25 09:23:49,328 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-25 09:23:49,328 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-25 09:23:49,328 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-25 09:23:49,328 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-04-25 09:23:49,328 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-25 09:23:49,328 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-25 09:23:49,328 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 09:23:49,393 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 09:23:49,393 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:23:49,393 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 09:23:49,393 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-25 09:23:49,393 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 09:23:49,393 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-25 09:23:49,393 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-25 09:23:49,393 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-25 09:23:49,393 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-25 09:23:49,393 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-04-25 09:23:49,393 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-25 09:23:49,394 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-25 09:23:49,394 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-25 09:23:49,396 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2025-04-25 09:23:49,396 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2025-04-25 09:23:49,396 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2025-04-25 09:23:49,401 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-04-25 09:23:49,596 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-25 09:23:49,600 INFO L422 BasicCegarLoop]: Path program histogram: [6, 2, 2, 1, 1, 1] [2025-04-25 09:23:49,602 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-25 09:23:49,602 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-25 09:23:49,610 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2025-04-25 09:23:49,611 INFO L201 PluginConnector]: Adding new model misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.04 09:23:49 BasicIcfg [2025-04-25 09:23:49,611 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-25 09:23:49,612 INFO L158 Benchmark]: Toolchain (without parser) took 4742.90ms. Allocated memory was 167.8MB in the beginning and 142.6MB in the end (delta: -25.2MB). Free memory was 101.1MB in the beginning and 85.7MB in the end (delta: 15.4MB). There was no memory consumed. Max. memory is 16.0GB. [2025-04-25 09:23:49,612 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.27ms. Allocated memory is still 167.8MB. Free memory is still 102.0MB. There was no memory consumed. Max. memory is 16.0GB. [2025-04-25 09:23:49,612 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.99ms. Allocated memory is still 167.8MB. Free memory was 101.1MB in the beginning and 99.1MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.0GB. [2025-04-25 09:23:49,612 INFO L158 Benchmark]: Boogie Preprocessor took 24.73ms. Allocated memory is still 167.8MB. Free memory was 99.1MB in the beginning and 98.1MB in the end (delta: 964.7kB). There was no memory consumed. Max. memory is 16.0GB. [2025-04-25 09:23:49,612 INFO L158 Benchmark]: RCFGBuilder took 144.13ms. Allocated memory is still 167.8MB. Free memory was 98.1MB in the beginning and 88.8MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.0GB. [2025-04-25 09:23:49,613 INFO L158 Benchmark]: TraceAbstraction took 4534.98ms. Allocated memory was 167.8MB in the beginning and 142.6MB in the end (delta: -25.2MB). Free memory was 87.8MB in the beginning and 85.7MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.0GB. [2025-04-25 09:23:49,613 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 0.27ms. Allocated memory is still 167.8MB. Free memory is still 102.0MB. There was no memory consumed. Max. memory is 16.0GB. * Boogie Procedure Inliner took 32.99ms. Allocated memory is still 167.8MB. Free memory was 101.1MB in the beginning and 99.1MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.0GB. * Boogie Preprocessor took 24.73ms. Allocated memory is still 167.8MB. Free memory was 99.1MB in the beginning and 98.1MB in the end (delta: 964.7kB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 144.13ms. Allocated memory is still 167.8MB. Free memory was 98.1MB in the beginning and 88.8MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.0GB. * TraceAbstraction took 4534.98ms. Allocated memory was 167.8MB in the beginning and 142.6MB in the end (delta: -25.2MB). Free memory was 87.8MB in the beginning and 85.7MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2970, independent: 1967, independent conditional: 1582, independent unconditional: 385, dependent: 1003, dependent conditional: 1003, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1967, independent: 1967, independent conditional: 1582, independent unconditional: 385, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1967, independent: 1967, independent conditional: 1582, independent unconditional: 385, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1967, independent: 1967, independent conditional: 1582, independent unconditional: 385, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1967, independent: 1967, independent conditional: 0, independent unconditional: 1967, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1967, independent: 1967, independent conditional: 0, independent unconditional: 1967, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 332, independent: 332, independent conditional: 0, independent unconditional: 332, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 332, independent: 323, independent conditional: 0, independent unconditional: 323, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 9, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 9, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 20, independent: 20, independent conditional: 0, independent unconditional: 20, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 1967, independent: 1635, independent conditional: 0, independent unconditional: 1635, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 332, unknown conditional: 0, unknown unconditional: 332] , Statistics on independence cache: Total cache size (in pairs): 332, Positive cache size: 332, Positive conditional cache size: 0, Positive unconditional cache size: 332, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 1582, Maximal queried relation: 0, Independence queries for same thread: 1003, Persistent sets #1 benchmarks: Persistent set computation time: 0.0s, Number of persistent set computation: 40, Number of trivial persistent sets: 25, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 385, independent: 385, independent conditional: 0, independent unconditional: 385, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2970, independent: 1967, independent conditional: 1582, independent unconditional: 385, dependent: 1003, dependent conditional: 1003, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1967, independent: 1967, independent conditional: 1582, independent unconditional: 385, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1967, independent: 1967, independent conditional: 1582, independent unconditional: 385, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1967, independent: 1967, independent conditional: 1582, independent unconditional: 385, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1967, independent: 1967, independent conditional: 0, independent unconditional: 1967, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1967, independent: 1967, independent conditional: 0, independent unconditional: 1967, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 332, independent: 332, independent conditional: 0, independent unconditional: 332, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 332, independent: 323, independent conditional: 0, independent unconditional: 323, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 9, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 9, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 20, independent: 20, independent conditional: 0, independent unconditional: 20, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 1967, independent: 1635, independent conditional: 0, independent unconditional: 1635, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 332, unknown conditional: 0, unknown unconditional: 332] , Statistics on independence cache: Total cache size (in pairs): 332, Positive cache size: 332, Positive conditional cache size: 0, Positive unconditional cache size: 332, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 1582, Maximal queried relation: 0, Independence queries for same thread: 1003 - PositiveResult [Line: 59]: 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, 44 locations, 51 edges, 3 error locations. Started 1 CEGAR loops. OverallTime: 4.4s, OverallIterations: 13, TraceHistogramMax: 0, PathProgramHistogramMax: 6, EmptinessCheckTime: 1.0s, 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: 81, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 560 NumberOfCodeBlocks, 560 NumberOfCodeBlocksAsserted, 37 NumberOfCheckSat, 745 ConstructedInterpolants, 0 QuantifiedInterpolants, 2768 SizeOfPredicates, 11 NumberOfNonLiveVariables, 371 ConjunctsInSsa, 68 ConjunctsInUnsatCore, 27 InterpolantComputations, 6 PerfectInterpolantSequences, 44/254 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: SuccessfulCommutativityProofs: 0, ConComChecker Statistics: CheckTime [ms]: 0, ConditionCalculationTime [ms]: 0, ConditionCalculations: 4, QuantifiedConditions: 0, TraceChecks: 0, UnknownTraceChecks: 0, UnsatisfiedConditions: 0, ImperfectProofs: 0 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-04-25 09:23:49,626 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...