/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 NONE -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerBplInline.xml -s ../benchexec/../../../trunk/examples/settings/default/gemcutter/svcomp-Reach-32bit-GemCutter_Default.epf -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sorted.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-dev-ebd4107-m [2025-01-22 19:40:53,684 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-22 19:40:53,745 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../benchexec/../../../trunk/examples/settings/default/gemcutter/svcomp-Reach-32bit-GemCutter_Default.epf [2025-01-22 19:40:53,748 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-22 19:40:53,748 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-22 19:40:53,775 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-22 19:40:53,776 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-22 19:40:53,776 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-22 19:40:53,776 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-22 19:40:53,776 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-22 19:40:53,776 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-22 19:40:53,776 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-22 19:40:53,776 INFO L153 SettingsManager]: * Use SBE=true [2025-01-22 19:40:53,776 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-22 19:40:53,776 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-22 19:40:53,777 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-22 19:40:53,777 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-22 19:40:53,777 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-22 19:40:53,777 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-22 19:40:53,777 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-22 19:40:53,777 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-22 19:40:53,777 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-22 19:40:53,777 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-22 19:40:53,777 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-22 19:40:53,777 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-22 19:40:53,777 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-22 19:40:53,777 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-22 19:40:53,777 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-22 19:40:53,777 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-22 19:40:53,777 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-22 19:40:53,777 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-22 19:40:53,778 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-22 19:40:53,778 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-22 19:40:53,778 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-22 19:40:53,778 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-01-22 19:40:53,778 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-22 19:40:53,778 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-22 19:40:53,778 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-01-22 19:40:53,778 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-22 19:40:53,778 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-22 19:40:53,778 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-01-22 19:40:53,778 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-01-22 19:40:53,778 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-01-22 19:40:53,778 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 -> NONE [2025-01-22 19:40:54,028 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-22 19:40:54,033 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-22 19:40:54,034 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-22 19:40:54,035 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-01-22 19:40:54,035 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-01-22 19:40:54,036 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sorted.wvr.bpl [2025-01-22 19:40:54,036 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sorted.wvr.bpl' [2025-01-22 19:40:54,056 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-22 19:40:54,057 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-01-22 19:40:54,058 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-22 19:40:54,058 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-22 19:40:54,058 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-22 19:40:54,065 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 07:40:54" (1/1) ... [2025-01-22 19:40:54,069 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 07:40:54" (1/1) ... [2025-01-22 19:40:54,073 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-01-22 19:40:54,074 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-22 19:40:54,075 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-22 19:40:54,075 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-22 19:40:54,075 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-22 19:40:54,079 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 07:40:54" (1/1) ... [2025-01-22 19:40:54,080 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 07:40:54" (1/1) ... [2025-01-22 19:40:54,080 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 07:40:54" (1/1) ... [2025-01-22 19:40:54,081 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 07:40:54" (1/1) ... [2025-01-22 19:40:54,082 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 07:40:54" (1/1) ... [2025-01-22 19:40:54,082 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 07:40:54" (1/1) ... [2025-01-22 19:40:54,086 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 07:40:54" (1/1) ... [2025-01-22 19:40:54,086 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 07:40:54" (1/1) ... [2025-01-22 19:40:54,087 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 07:40:54" (1/1) ... [2025-01-22 19:40:54,087 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-22 19:40:54,089 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-22 19:40:54,090 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-22 19:40:54,090 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-22 19:40:54,090 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 07:40:54" (1/1) ... [2025-01-22 19:40:54,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-22 19:40:54,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 19:40:54,115 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2025-01-22 19:40:54,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2025-01-22 19:40:54,140 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-01-22 19:40:54,140 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-01-22 19:40:54,140 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-01-22 19:40:54,140 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-01-22 19:40:54,140 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-01-22 19:40:54,140 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-01-22 19:40:54,140 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-01-22 19:40:54,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-22 19:40:54,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-22 19:40:54,140 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2025-01-22 19:40:54,140 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-01-22 19:40:54,140 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-01-22 19:40:54,141 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-22 19:40:54,180 INFO L234 CfgBuilder]: Building ICFG [2025-01-22 19:40:54,181 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-22 19:40:54,267 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-22 19:40:54,267 INFO L283 CfgBuilder]: Performing block encoding [2025-01-22 19:40:54,302 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-22 19:40:54,303 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-22 19:40:54,303 INFO L201 PluginConnector]: Adding new model sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.01 07:40:54 BoogieIcfgContainer [2025-01-22 19:40:54,303 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-22 19:40:54,307 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-22 19:40:54,307 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-22 19:40:54,311 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-22 19:40:54,311 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.01 07:40:54" (1/2) ... [2025-01-22 19:40:54,312 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@564be3b9 and model type sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.01 07:40:54, skipping insertion in model container [2025-01-22 19:40:54,312 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.01 07:40:54" (2/2) ... [2025-01-22 19:40:54,313 INFO L128 eAbstractionObserver]: Analyzing ICFG sorted.wvr.bpl [2025-01-22 19:40:54,324 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-22 19:40:54,326 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG sorted.wvr.bpl that has 4 procedures, 20 locations, 1 initial locations, 3 loop locations, and 1 error locations. [2025-01-22 19:40:54,326 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-22 19:40:54,367 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-01-22 19:40:54,404 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-22 19:40:54,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-01-22 19:40:54,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 19:40:54,406 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-01-22 19:40:54,407 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-01-22 19:40:54,461 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-01-22 19:40:54,468 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-01-22 19:40:54,476 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@599f5a9f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-22 19:40:54,476 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-01-22 19:40:54,567 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-22 19:40:54,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 19:40:54,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1244923026, now seen corresponding path program 1 times [2025-01-22 19:40:54,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 19:40:54,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654269063] [2025-01-22 19:40:54,577 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-22 19:40:54,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 19:40:54,617 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-01-22 19:40:54,635 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-01-22 19:40:54,636 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-22 19:40:54,636 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 19:40:54,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 19:40:54,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 19:40:54,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654269063] [2025-01-22 19:40:54,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654269063] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-22 19:40:54,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-22 19:40:54,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-22 19:40:54,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314934926] [2025-01-22 19:40:54,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-22 19:40:54,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-22 19:40:54,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 19:40:54,873 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-22 19:40:54,874 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-01-22 19:40:54,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 19:40:54,875 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 19:40:54,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-22 19:40:54,876 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 19:40:55,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-22 19:40:55,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-22 19:40:55,090 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-22 19:40:55,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 19:40:55,091 INFO L85 PathProgramCache]: Analyzing trace with hash 832747572, now seen corresponding path program 1 times [2025-01-22 19:40:55,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 19:40:55,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104327729] [2025-01-22 19:40:55,091 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-22 19:40:55,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 19:40:55,096 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-01-22 19:40:55,120 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-01-22 19:40:55,120 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-22 19:40:55,120 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 19:40:56,207 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 19:40:56,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 19:40:56,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104327729] [2025-01-22 19:40:56,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104327729] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 19:40:56,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1683582438] [2025-01-22 19:40:56,208 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-22 19:40:56,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 19:40:56,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 19:40:56,211 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-22 19:40:56,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-22 19:40:56,235 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-01-22 19:40:56,243 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-01-22 19:40:56,243 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-22 19:40:56,243 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 19:40:56,245 INFO L256 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 28 conjuncts are in the unsatisfiable core [2025-01-22 19:40:56,248 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 19:40:57,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 19:40:57,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 19:40:57,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 19:40:57,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 19:40:57,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 19:40:57,161 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-22 19:40:57,162 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 3 case distinctions, treesize of input 141 treesize of output 113 [2025-01-22 19:40:57,415 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 19:40:57,415 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-22 19:40:58,338 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 19:40:58,344 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 19:40:58,348 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 19:40:58,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 19:40:58,495 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-22 19:40:58,496 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 3 disjoint index pairs (out of 45 index pairs), introduced 9 new quantified variables, introduced 39 case distinctions, treesize of input 197 treesize of output 345 [2025-01-22 19:41:29,194 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 19:41:29,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1683582438] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-22 19:41:29,195 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-22 19:41:29,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 25 [2025-01-22 19:41:29,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054290915] [2025-01-22 19:41:29,195 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-22 19:41:29,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2025-01-22 19:41:29,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 19:41:29,196 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2025-01-22 19:41:29,197 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=551, Unknown=0, NotChecked=0, Total=650 [2025-01-22 19:41:29,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 19:41:29,197 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 19:41:29,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 2.269230769230769) internal successors, (59), 25 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-22 19:41:29,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-01-22 19:41:29,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 19:41:30,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-22 19:41:30,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-01-22 19:41:30,684 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-22 19:41:30,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 19:41:30,882 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-22 19:41:30,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 19:41:30,882 INFO L85 PathProgramCache]: Analyzing trace with hash 64235326, now seen corresponding path program 2 times [2025-01-22 19:41:30,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 19:41:30,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116657478] [2025-01-22 19:41:30,883 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-22 19:41:30,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 19:41:30,887 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 34 statements into 2 equivalence classes. [2025-01-22 19:41:30,892 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 34 of 34 statements. [2025-01-22 19:41:30,892 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-22 19:41:30,892 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 19:41:31,036 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 19:41:31,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 19:41:31,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116657478] [2025-01-22 19:41:31,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116657478] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 19:41:31,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [408657024] [2025-01-22 19:41:31,036 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-22 19:41:31,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 19:41:31,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 19:41:31,039 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-22 19:41:31,043 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-22 19:41:31,063 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 34 statements into 2 equivalence classes. [2025-01-22 19:41:31,072 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 34 of 34 statements. [2025-01-22 19:41:31,072 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-22 19:41:31,072 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 19:41:31,072 INFO L256 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-01-22 19:41:31,075 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 19:41:31,190 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 19:41:31,190 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-22 19:41:31,329 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 19:41:31,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [408657024] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-22 19:41:31,329 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-22 19:41:31,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 12] total 27 [2025-01-22 19:41:31,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150201973] [2025-01-22 19:41:31,330 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-22 19:41:31,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2025-01-22 19:41:31,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-22 19:41:31,330 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2025-01-22 19:41:31,331 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=578, Unknown=0, NotChecked=0, Total=756 [2025-01-22 19:41:31,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-22 19:41:31,331 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-22 19:41:31,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.9285714285714284) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-22 19:41:31,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-01-22 19:41:31,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-01-22 19:41:31,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-22 19:41:31,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-22 19:41:31,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-01-22 19:41:31,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2025-01-22 19:41:31,812 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-22 19:41:32,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 19:41:32,007 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-01-22 19:41:32,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-22 19:41:32,007 INFO L85 PathProgramCache]: Analyzing trace with hash 907319300, now seen corresponding path program 3 times [2025-01-22 19:41:32,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-22 19:41:32,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798787269] [2025-01-22 19:41:32,007 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-22 19:41:32,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-22 19:41:32,013 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 40 statements into 4 equivalence classes. [2025-01-22 19:41:32,063 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) and asserted 40 of 40 statements. [2025-01-22 19:41:32,063 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2025-01-22 19:41:32,063 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 19:41:34,389 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 19:41:34,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-22 19:41:34,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798787269] [2025-01-22 19:41:34,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798787269] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-22 19:41:34,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [297663470] [2025-01-22 19:41:34,390 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-22 19:41:34,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 19:41:34,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-22 19:41:34,392 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-22 19:41:34,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-22 19:41:34,417 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 40 statements into 4 equivalence classes. [2025-01-22 19:41:34,433 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) and asserted 40 of 40 statements. [2025-01-22 19:41:34,433 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2025-01-22 19:41:34,433 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-22 19:41:34,439 WARN L254 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 53 conjuncts are in the unsatisfiable core [2025-01-22 19:41:34,441 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-22 19:41:37,045 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 290 treesize of output 178 [2025-01-22 19:41:37,199 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-22 19:41:37,199 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-22 19:41:43,834 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 19:41:43,835 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 19:41:43,839 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 19:41:43,840 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 19:41:43,845 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 19:41:43,852 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 19:41:43,854 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 19:41:43,855 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 19:41:43,861 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 19:41:43,862 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 19:41:43,880 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 19:41:43,886 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 19:41:43,888 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-22 19:41:43,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-22 19:41:44,765 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-22 19:41:44,766 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 50 disjoint index pairs (out of 153 index pairs), introduced 17 new quantified variables, introduced 98 case distinctions, treesize of input 709 treesize of output 1143 [2025-01-22 19:50:02,447 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 101 [2025-01-22 19:50:02,447 WARN L249 Executor]: External (MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2025-01-22 19:50:02,448 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2025-01-22 19:50:02,454 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-01-22 19:50:02,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-22 19:50:02,658 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2025-01-22 19:50:02,659 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:277) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:48) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.checkRedundancy(SimplifyDDA2.java:275) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convertForPreprocessedInputTerms(SimplifyDDA2.java:499) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:484) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.simplify(SimplifyDDA2.java:590) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:245) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:318) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify(QuantifierPusher.java:728) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:255) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:283) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:51) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:234) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:416) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:395) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:267) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:325) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:181) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderCegarLoop.isCounterexampleFeasible(PartialOrderCegarLoop.java:320) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:428) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:314) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:238) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:132) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 70 more [2025-01-22 19:50:02,662 INFO L158 Benchmark]: Toolchain (without parser) took 548604.56ms. Allocated memory was 117.4MB in the beginning and 1.6GB in the end (delta: 1.5GB). Free memory was 79.9MB in the beginning and 1.1GB in the end (delta: -988.3MB). Peak memory consumption was 984.4MB. Max. memory is 16.0GB. [2025-01-22 19:50:02,662 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.20ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 80.9MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.0GB. [2025-01-22 19:50:02,662 INFO L158 Benchmark]: Boogie Procedure Inliner took 16.87ms. Allocated memory is still 117.4MB. Free memory was 79.9MB in the beginning and 78.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.0GB. [2025-01-22 19:50:02,668 INFO L158 Benchmark]: Boogie Preprocessor took 12.26ms. Allocated memory is still 117.4MB. Free memory was 78.6MB in the beginning and 77.9MB in the end (delta: 695.7kB). There was no memory consumed. Max. memory is 16.0GB. [2025-01-22 19:50:02,668 INFO L158 Benchmark]: RCFGBuilder took 213.68ms. Allocated memory is still 117.4MB. Free memory was 77.9MB in the beginning and 67.1MB in the end (delta: 10.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2025-01-22 19:50:02,668 INFO L158 Benchmark]: TraceAbstraction took 548354.42ms. Allocated memory was 117.4MB in the beginning and 1.6GB in the end (delta: 1.5GB). Free memory was 66.4MB in the beginning and 1.1GB in the end (delta: -1.0GB). Peak memory consumption was 967.6MB. Max. memory is 16.0GB. [2025-01-22 19:50:02,669 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.20ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 80.9MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.0GB. * Boogie Procedure Inliner took 16.87ms. Allocated memory is still 117.4MB. Free memory was 79.9MB in the beginning and 78.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.0GB. * Boogie Preprocessor took 12.26ms. Allocated memory is still 117.4MB. Free memory was 78.6MB in the beginning and 77.9MB in the end (delta: 695.7kB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 213.68ms. Allocated memory is still 117.4MB. Free memory was 77.9MB in the beginning and 67.1MB in the end (delta: 10.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 548354.42ms. Allocated memory was 117.4MB in the beginning and 1.6GB in the end (delta: 1.5GB). Free memory was 66.4MB in the beginning and 1.1GB in the end (delta: -1.0GB). Peak memory consumption was 967.6MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...