/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data --traceabstraction.use.conditional.por.in.concurrent.analysis true --traceabstraction.commutativity.condition.synthesis NECESSARY_AND_SUFFICIENT -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerBplInline.xml -s ../benchexec/../../../trunk/examples/settings/default/gemcutter/svcomp-Reach-32bit-GemCutter_Default.epf --rcfgbuilder.only.consider.context.switches.at.boundaries.of.atomic.blocks false -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/nzb-file-symm.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-dev-a343466-m [2025-01-30 00:30:37,191 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-30 00:30:37,242 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 [2025-01-30 00:30:37,245 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-30 00:30:37,245 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-30 00:30:37,261 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-30 00:30:37,261 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-30 00:30:37,262 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-30 00:30:37,263 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-30 00:30:37,263 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-30 00:30:37,263 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-30 00:30:37,263 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-30 00:30:37,264 INFO L153 SettingsManager]: * Use SBE=true [2025-01-30 00:30:37,264 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-30 00:30:37,264 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-30 00:30:37,264 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-30 00:30:37,264 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-30 00:30:37,264 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-30 00:30:37,264 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-30 00:30:37,264 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-30 00:30:37,264 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-30 00:30:37,265 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-30 00:30:37,265 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-30 00:30:37,265 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-30 00:30:37,265 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-30 00:30:37,265 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-30 00:30:37,265 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-30 00:30:37,265 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-30 00:30:37,265 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-30 00:30:37,265 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-30 00:30:37,265 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-30 00:30:37,265 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-30 00:30:37,265 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-30 00:30:37,265 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-30 00:30:37,265 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-01-30 00:30:37,266 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-30 00:30:37,266 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-30 00:30:37,266 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-01-30 00:30:37,266 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-30 00:30:37,266 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-30 00:30:37,266 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-01-30 00:30:37,266 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-01-30 00:30:37,266 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-01-30 00:30:37,266 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use conditional POR in concurrent analysis -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> NECESSARY_AND_SUFFICIENT Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Only consider context switches at boundaries of atomic blocks -> false [2025-01-30 00:30:37,472 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-30 00:30:37,477 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-30 00:30:37,479 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-30 00:30:37,479 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-01-30 00:30:37,481 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-01-30 00:30:37,481 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/nzb-file-symm.wvr.bpl [2025-01-30 00:30:37,481 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/nzb-file-symm.wvr.bpl' [2025-01-30 00:30:37,503 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-30 00:30:37,505 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-01-30 00:30:37,505 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-30 00:30:37,505 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-30 00:30:37,505 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-30 00:30:37,512 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.01 12:30:37" (1/1) ... [2025-01-30 00:30:37,517 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.01 12:30:37" (1/1) ... [2025-01-30 00:30:37,522 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-01-30 00:30:37,523 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-30 00:30:37,524 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-30 00:30:37,524 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-30 00:30:37,524 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-30 00:30:37,528 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.01 12:30:37" (1/1) ... [2025-01-30 00:30:37,528 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.01 12:30:37" (1/1) ... [2025-01-30 00:30:37,531 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.01 12:30:37" (1/1) ... [2025-01-30 00:30:37,531 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.01 12:30:37" (1/1) ... [2025-01-30 00:30:37,533 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.01 12:30:37" (1/1) ... [2025-01-30 00:30:37,533 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.01 12:30:37" (1/1) ... [2025-01-30 00:30:37,535 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.01 12:30:37" (1/1) ... [2025-01-30 00:30:37,535 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.01 12:30:37" (1/1) ... [2025-01-30 00:30:37,536 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.01 12:30:37" (1/1) ... [2025-01-30 00:30:37,536 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-30 00:30:37,537 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-30 00:30:37,537 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-30 00:30:37,537 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-30 00:30:37,538 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.01 12:30:37" (1/1) ... [2025-01-30 00:30:37,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-30 00:30:37,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-30 00:30:37,563 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) [2025-01-30 00:30:37,567 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 [2025-01-30 00:30:37,588 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-01-30 00:30:37,589 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-01-30 00:30:37,589 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-01-30 00:30:37,589 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-01-30 00:30:37,589 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-01-30 00:30:37,589 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-01-30 00:30:37,589 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-01-30 00:30:37,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-30 00:30:37,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-30 00:30:37,590 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-30 00:30:37,629 INFO L234 CfgBuilder]: Building ICFG [2025-01-30 00:30:37,630 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-30 00:30:37,740 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-30 00:30:37,741 INFO L283 CfgBuilder]: Performing block encoding [2025-01-30 00:30:37,797 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-30 00:30:37,797 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2025-01-30 00:30:37,797 INFO L201 PluginConnector]: Adding new model nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 12:30:37 BoogieIcfgContainer [2025-01-30 00:30:37,798 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-30 00:30:37,800 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-30 00:30:37,800 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-30 00:30:37,803 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-30 00:30:37,803 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.01 12:30:37" (1/2) ... [2025-01-30 00:30:37,804 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15b3e136 and model type nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 12:30:37, skipping insertion in model container [2025-01-30 00:30:37,804 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 12:30:37" (2/2) ... [2025-01-30 00:30:37,805 INFO L128 eAbstractionObserver]: Analyzing ICFG nzb-file-symm.wvr.bpl [2025-01-30 00:30:37,815 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-30 00:30:37,816 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG nzb-file-symm.wvr.bpl that has 3 procedures, 17 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2025-01-30 00:30:37,817 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-30 00:30:37,852 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-01-30 00:30:37,885 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-30 00:30:37,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-01-30 00:30:37,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-30 00:30:37,889 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) [2025-01-30 00:30:37,891 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 [2025-01-30 00:30:37,946 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-01-30 00:30:37,965 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-01-30 00:30:37,973 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;@4c1f6ef1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-30 00:30:37,973 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-01-30 00:30:38,039 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-30 00:30:38,039 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-30 00:30:38,040 INFO L139 ounterexampleChecker]: Examining path program with hash -345179132, occurence #1 [2025-01-30 00:30:38,040 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-30 00:30:38,040 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-30 00:30:38,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-30 00:30:38,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1384160108, now seen corresponding path program 1 times [2025-01-30 00:30:38,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-30 00:30:38,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637665050] [2025-01-30 00:30:38,052 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-30 00:30:38,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-30 00:30:38,100 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-01-30 00:30:38,109 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-01-30 00:30:38,110 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-30 00:30:38,110 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-30 00:30:38,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-30 00:30:38,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-30 00:30:38,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637665050] [2025-01-30 00:30:38,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637665050] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-30 00:30:38,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-30 00:30:38,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-30 00:30:38,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900181665] [2025-01-30 00:30:38,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-30 00:30:38,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-30 00:30:38,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-30 00:30:38,226 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-30 00:30:38,226 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-30 00:30:38,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-30 00:30:38,228 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-30 00:30:38,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2025-01-30 00:30:38,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-30 00:30:38,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-30 00:30:38,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-30 00:30:38,273 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-30 00:30:38,273 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-30 00:30:38,273 INFO L139 ounterexampleChecker]: Examining path program with hash -537276429, occurence #1 [2025-01-30 00:30:38,273 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-30 00:30:38,273 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-30 00:30:38,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-30 00:30:38,274 INFO L85 PathProgramCache]: Analyzing trace with hash -1123593761, now seen corresponding path program 1 times [2025-01-30 00:30:38,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-30 00:30:38,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169724046] [2025-01-30 00:30:38,274 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-30 00:30:38,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-30 00:30:38,280 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-01-30 00:30:38,287 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-01-30 00:30:38,287 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-30 00:30:38,287 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-30 00:30:38,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-30 00:30:38,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-30 00:30:38,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169724046] [2025-01-30 00:30:38,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169724046] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-30 00:30:38,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-30 00:30:38,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-30 00:30:38,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795574082] [2025-01-30 00:30:38,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-30 00:30:38,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-30 00:30:38,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-30 00:30:38,355 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-30 00:30:38,355 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-30 00:30:38,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-30 00:30:38,355 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-30 00:30:38,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2025-01-30 00:30:38,355 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-30 00:30:38,355 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-30 00:30:38,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-30 00:30:38,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-30 00:30:38,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-30 00:30:38,390 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-30 00:30:38,390 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-30 00:30:38,390 INFO L139 ounterexampleChecker]: Examining path program with hash -1373840477, occurence #1 [2025-01-30 00:30:38,390 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-30 00:30:38,390 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-30 00:30:38,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-30 00:30:38,390 INFO L85 PathProgramCache]: Analyzing trace with hash 460793977, now seen corresponding path program 1 times [2025-01-30 00:30:38,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-30 00:30:38,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370233637] [2025-01-30 00:30:38,391 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-30 00:30:38,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-30 00:30:38,397 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-01-30 00:30:38,434 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-01-30 00:30:38,434 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-30 00:30:38,434 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-30 00:30:39,203 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-30 00:30:39,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-30 00:30:39,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370233637] [2025-01-30 00:30:39,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370233637] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-30 00:30:39,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [423877418] [2025-01-30 00:30:39,204 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-30 00:30:39,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-30 00:30:39,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-30 00:30:39,208 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) [2025-01-30 00:30:39,209 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 [2025-01-30 00:30:39,237 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-01-30 00:30:39,247 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-01-30 00:30:39,248 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-30 00:30:39,248 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-30 00:30:39,249 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 25 conjuncts are in the unsatisfiable core [2025-01-30 00:30:39,254 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-30 00:30:39,818 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 315 treesize of output 269 [2025-01-30 00:30:39,832 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 273 treesize of output 229 [2025-01-30 00:30:40,185 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-30 00:30:40,185 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-30 00:30:41,358 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-30 00:30:41,358 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 307 treesize of output 281 [2025-01-30 00:30:41,373 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-30 00:30:41,374 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 277 treesize of output 255 [2025-01-30 00:30:42,445 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-30 00:30:42,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [423877418] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-30 00:30:42,446 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-30 00:30:42,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2025-01-30 00:30:42,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502419927] [2025-01-30 00:30:42,446 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-30 00:30:42,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-01-30 00:30:42,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-30 00:30:42,447 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-01-30 00:30:42,447 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2025-01-30 00:30:42,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-30 00:30:42,447 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-30 00:30:42,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 17 states have internal predecessors, (33), 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) [2025-01-30 00:30:42,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-30 00:30:42,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-30 00:30:42,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-30 00:30:42,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-30 00:30:42,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-30 00:30:42,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-30 00:30:42,884 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-30 00:30:43,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-30 00:30:43,079 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-30 00:30:43,079 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-30 00:30:43,079 INFO L139 ounterexampleChecker]: Examining path program with hash -537276429, occurence #2 [2025-01-30 00:30:43,079 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-30 00:30:43,080 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-30 00:30:43,080 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-30 00:30:43,080 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2025-01-30 00:30:43,080 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-30 00:30:43,080 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 11 [2025-01-30 00:30:43,080 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-30 00:30:43,080 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-30 00:30:43,080 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-30 00:30:43,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-30 00:30:43,081 INFO L85 PathProgramCache]: Analyzing trace with hash 235408026, now seen corresponding path program 2 times [2025-01-30 00:30:43,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-30 00:30:43,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178229411] [2025-01-30 00:30:43,081 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-30 00:30:43,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-30 00:30:43,088 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 15 statements into 2 equivalence classes. [2025-01-30 00:30:43,101 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 15 of 15 statements. [2025-01-30 00:30:43,101 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-30 00:30:43,101 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-30 00:30:43,235 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-30 00:30:43,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-30 00:30:43,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178229411] [2025-01-30 00:30:43,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178229411] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-30 00:30:43,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [181957904] [2025-01-30 00:30:43,235 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-30 00:30:43,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-30 00:30:43,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-30 00:30:43,238 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) [2025-01-30 00:30:43,240 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 [2025-01-30 00:30:43,264 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 15 statements into 2 equivalence classes. [2025-01-30 00:30:43,271 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 15 of 15 statements. [2025-01-30 00:30:43,271 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-30 00:30:43,271 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-30 00:30:43,272 INFO L256 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-01-30 00:30:43,274 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-30 00:30:43,314 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 40 [2025-01-30 00:30:43,317 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 34 [2025-01-30 00:30:43,341 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-30 00:30:43,342 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-30 00:30:43,422 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-30 00:30:43,422 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 22 [2025-01-30 00:30:43,427 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-30 00:30:43,428 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2025-01-30 00:30:43,444 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-30 00:30:43,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [181957904] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-30 00:30:43,444 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-30 00:30:43,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2025-01-30 00:30:43,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119704541] [2025-01-30 00:30:43,445 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-30 00:30:43,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-01-30 00:30:43,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-30 00:30:43,445 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-01-30 00:30:43,445 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2025-01-30 00:30:43,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-30 00:30:43,445 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-30 00:30:43,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 13 states have internal predecessors, (23), 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) [2025-01-30 00:30:43,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-30 00:30:43,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-30 00:30:43,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-30 00:30:43,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-30 00:30:43,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-30 00:30:43,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-30 00:30:43,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-30 00:30:43,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-30 00:30:43,557 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-30 00:30:43,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-30 00:30:43,754 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-30 00:30:43,754 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-30 00:30:43,754 INFO L139 ounterexampleChecker]: Examining path program with hash -1373840477, occurence #2 [2025-01-30 00:30:43,754 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-30 00:30:43,754 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-30 00:30:43,754 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-30 00:30:43,754 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2025-01-30 00:30:43,754 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-30 00:30:43,754 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2025-01-30 00:30:43,754 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-30 00:30:43,754 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-30 00:30:43,754 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-30 00:30:43,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-30 00:30:43,755 INFO L85 PathProgramCache]: Analyzing trace with hash -359823586, now seen corresponding path program 3 times [2025-01-30 00:30:43,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-30 00:30:43,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958804580] [2025-01-30 00:30:43,755 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-30 00:30:43,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-30 00:30:43,762 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 16 statements into 3 equivalence classes. [2025-01-30 00:30:43,771 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 16 of 16 statements. [2025-01-30 00:30:43,771 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-01-30 00:30:43,771 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-30 00:30:44,161 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-30 00:30:44,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-30 00:30:44,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958804580] [2025-01-30 00:30:44,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958804580] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-30 00:30:44,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [76209815] [2025-01-30 00:30:44,161 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-30 00:30:44,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-30 00:30:44,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-30 00:30:44,163 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) [2025-01-30 00:30:44,165 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 [2025-01-30 00:30:44,186 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 16 statements into 3 equivalence classes. [2025-01-30 00:30:44,195 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 16 of 16 statements. [2025-01-30 00:30:44,195 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-01-30 00:30:44,195 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-30 00:30:44,195 INFO L256 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 28 conjuncts are in the unsatisfiable core [2025-01-30 00:30:44,196 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-30 00:30:44,412 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 248 treesize of output 214 [2025-01-30 00:30:44,416 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 201 treesize of output 175 [2025-01-30 00:30:44,608 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-30 00:30:44,608 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-30 00:30:45,287 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-30 00:30:45,287 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 405 treesize of output 367 [2025-01-30 00:30:45,301 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-30 00:30:45,301 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 363 treesize of output 321 [2025-01-30 00:30:45,588 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-30 00:30:45,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [76209815] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-30 00:30:45,589 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-30 00:30:45,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 21 [2025-01-30 00:30:45,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407675589] [2025-01-30 00:30:45,589 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-30 00:30:45,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-01-30 00:30:45,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-30 00:30:45,589 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-01-30 00:30:45,590 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=357, Unknown=0, NotChecked=0, Total=420 [2025-01-30 00:30:45,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-30 00:30:45,590 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-30 00:30:45,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 1.7619047619047619) internal successors, (37), 21 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-30 00:30:45,590 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-30 00:30:45,590 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-30 00:30:45,590 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-30 00:30:45,590 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-01-30 00:30:45,590 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-30 00:30:46,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-30 00:30:46,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-30 00:30:46,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-30 00:30:46,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-30 00:30:46,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-30 00:30:46,120 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-01-30 00:30:46,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-30 00:30:46,316 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-30 00:30:46,316 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-30 00:30:46,316 INFO L139 ounterexampleChecker]: Examining path program with hash -1373840477, occurence #3 [2025-01-30 00:30:46,316 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-30 00:30:46,316 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-30 00:30:46,316 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-30 00:30:46,316 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2025-01-30 00:30:46,316 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-30 00:30:46,316 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 11 [2025-01-30 00:30:46,316 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-30 00:30:46,316 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2025-01-30 00:30:46,316 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-30 00:30:46,317 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-30 00:30:46,317 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-30 00:30:46,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-30 00:30:46,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1757005726, now seen corresponding path program 4 times [2025-01-30 00:30:46,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-30 00:30:46,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877474884] [2025-01-30 00:30:46,317 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-30 00:30:46,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-30 00:30:46,322 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 17 statements into 2 equivalence classes. [2025-01-30 00:30:46,331 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 17 of 17 statements. [2025-01-30 00:30:46,331 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-30 00:30:46,331 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-30 00:30:46,504 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-30 00:30:46,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-30 00:30:46,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877474884] [2025-01-30 00:30:46,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877474884] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-30 00:30:46,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1550325233] [2025-01-30 00:30:46,505 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-30 00:30:46,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-30 00:30:46,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-30 00:30:46,506 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-30 00:30:46,508 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-01-30 00:30:46,529 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 17 statements into 2 equivalence classes. [2025-01-30 00:30:46,538 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 17 of 17 statements. [2025-01-30 00:30:46,538 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-30 00:30:46,538 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-30 00:30:46,538 INFO L256 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-01-30 00:30:46,539 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-30 00:30:46,620 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 34 [2025-01-30 00:30:46,622 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 30 [2025-01-30 00:30:46,649 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-30 00:30:46,649 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-30 00:30:46,702 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-30 00:30:46,703 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 40 [2025-01-30 00:30:46,711 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-30 00:30:46,711 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 36 [2025-01-30 00:30:46,776 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-30 00:30:46,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1550325233] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-30 00:30:46,776 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-30 00:30:46,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2025-01-30 00:30:46,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103494738] [2025-01-30 00:30:46,777 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-30 00:30:46,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-01-30 00:30:46,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-30 00:30:46,777 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-01-30 00:30:46,777 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2025-01-30 00:30:46,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-30 00:30:46,777 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-30 00:30:46,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 19 states have internal predecessors, (29), 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) [2025-01-30 00:30:46,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-30 00:30:46,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-30 00:30:46,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-30 00:30:46,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-01-30 00:30:46,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-01-30 00:30:46,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-30 00:30:47,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-30 00:30:47,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-30 00:30:47,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-30 00:30:47,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-30 00:30:47,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-01-30 00:30:47,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2025-01-30 00:30:47,138 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-01-30 00:30:47,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-30 00:30:47,337 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-30 00:30:47,337 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-30 00:30:47,337 INFO L139 ounterexampleChecker]: Examining path program with hash -537276429, occurence #3 [2025-01-30 00:30:47,337 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-30 00:30:47,337 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-30 00:30:47,337 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-30 00:30:47,337 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2025-01-30 00:30:47,337 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-30 00:30:47,337 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2025-01-30 00:30:47,337 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-30 00:30:47,337 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-30 00:30:47,337 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-30 00:30:47,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-30 00:30:47,338 INFO L85 PathProgramCache]: Analyzing trace with hash 566067349, now seen corresponding path program 5 times [2025-01-30 00:30:47,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-30 00:30:47,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381077185] [2025-01-30 00:30:47,338 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-30 00:30:47,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-30 00:30:47,342 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 17 statements into 3 equivalence classes. [2025-01-30 00:30:47,348 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) and asserted 17 of 17 statements. [2025-01-30 00:30:47,348 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2025-01-30 00:30:47,348 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-30 00:30:47,476 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-30 00:30:47,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-30 00:30:47,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381077185] [2025-01-30 00:30:47,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381077185] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-30 00:30:47,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1670067842] [2025-01-30 00:30:47,477 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-30 00:30:47,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-30 00:30:47,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-30 00:30:47,479 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-30 00:30:47,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-01-30 00:30:47,506 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 17 statements into 3 equivalence classes. [2025-01-30 00:30:47,515 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) and asserted 17 of 17 statements. [2025-01-30 00:30:47,515 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2025-01-30 00:30:47,515 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-30 00:30:47,516 INFO L256 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-01-30 00:30:47,520 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-30 00:30:47,578 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 40 [2025-01-30 00:30:47,580 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 34 [2025-01-30 00:30:47,611 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-30 00:30:47,611 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-30 00:30:47,697 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-30 00:30:47,697 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2025-01-30 00:30:47,703 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-30 00:30:47,703 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 18 [2025-01-30 00:30:47,743 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-30 00:30:47,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1670067842] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-30 00:30:47,744 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-30 00:30:47,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2025-01-30 00:30:47,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540608945] [2025-01-30 00:30:47,744 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-30 00:30:47,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2025-01-30 00:30:47,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-30 00:30:47,744 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2025-01-30 00:30:47,745 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2025-01-30 00:30:47,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-30 00:30:47,745 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-30 00:30:47,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 1.5) internal successors, (30), 20 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) [2025-01-30 00:30:47,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-30 00:30:47,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-30 00:30:47,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-30 00:30:47,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-01-30 00:30:47,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2025-01-30 00:30:47,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2025-01-30 00:30:47,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-30 00:30:48,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-30 00:30:48,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-30 00:30:48,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-30 00:30:48,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-30 00:30:48,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-30 00:30:48,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2025-01-30 00:30:48,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2025-01-30 00:30:48,190 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-01-30 00:30:48,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-30 00:30:48,385 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-30 00:30:48,385 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-30 00:30:48,385 INFO L139 ounterexampleChecker]: Examining path program with hash -1373840477, occurence #4 [2025-01-30 00:30:48,385 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-30 00:30:48,385 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-30 00:30:48,385 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-30 00:30:48,385 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2025-01-30 00:30:48,385 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-30 00:30:48,385 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2025-01-30 00:30:48,385 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-30 00:30:48,385 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-30 00:30:48,385 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-30 00:30:48,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-30 00:30:48,386 INFO L85 PathProgramCache]: Analyzing trace with hash 537879437, now seen corresponding path program 6 times [2025-01-30 00:30:48,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-30 00:30:48,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573668996] [2025-01-30 00:30:48,386 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-30 00:30:48,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-30 00:30:48,392 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 22 statements into 6 equivalence classes. [2025-01-30 00:30:48,420 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) and asserted 22 of 22 statements. [2025-01-30 00:30:48,420 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2025-01-30 00:30:48,420 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-30 00:30:49,003 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-30 00:30:49,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-30 00:30:49,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573668996] [2025-01-30 00:30:49,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573668996] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-30 00:30:49,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1020070218] [2025-01-30 00:30:49,003 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-30 00:30:49,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-30 00:30:49,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-30 00:30:49,007 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-30 00:30:49,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-01-30 00:30:49,033 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 22 statements into 6 equivalence classes. [2025-01-30 00:30:49,050 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) and asserted 22 of 22 statements. [2025-01-30 00:30:49,050 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2025-01-30 00:30:49,050 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-30 00:30:49,051 INFO L256 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 37 conjuncts are in the unsatisfiable core [2025-01-30 00:30:49,054 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-30 00:30:49,222 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 224 treesize of output 192 [2025-01-30 00:30:49,225 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 196 treesize of output 168 [2025-01-30 00:30:49,441 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-30 00:30:49,441 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-30 00:30:49,985 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-30 00:30:49,985 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 289 treesize of output 265 [2025-01-30 00:30:49,993 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-30 00:30:49,993 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 261 treesize of output 241 [2025-01-30 00:30:50,314 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-30 00:30:50,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1020070218] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-30 00:30:50,314 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-30 00:30:50,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 34 [2025-01-30 00:30:50,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439241007] [2025-01-30 00:30:50,314 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-30 00:30:50,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2025-01-30 00:30:50,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-30 00:30:50,315 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2025-01-30 00:30:50,315 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=1003, Unknown=0, NotChecked=0, Total=1122 [2025-01-30 00:30:50,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-30 00:30:50,315 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-30 00:30:50,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 1.4705882352941178) internal successors, (50), 34 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-30 00:30:50,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-30 00:30:50,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-30 00:30:50,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-30 00:30:50,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-01-30 00:30:50,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-01-30 00:30:50,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2025-01-30 00:30:50,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2025-01-30 00:30:50,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-30 00:30:51,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-30 00:30:51,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-30 00:30:51,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-30 00:30:51,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-30 00:30:51,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-30 00:30:51,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2025-01-30 00:30:51,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2025-01-30 00:30:51,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-01-30 00:30:51,593 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-01-30 00:30:51,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-30 00:30:51,787 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-30 00:30:51,787 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-30 00:30:51,787 INFO L139 ounterexampleChecker]: Examining path program with hash -1373840477, occurence #5 [2025-01-30 00:30:51,787 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-30 00:30:51,787 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-30 00:30:51,787 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-30 00:30:51,787 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2025-01-30 00:30:51,787 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-30 00:30:51,787 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2025-01-30 00:30:51,787 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-30 00:30:51,787 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 21 [2025-01-30 00:30:51,787 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-30 00:30:51,787 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-30 00:30:51,787 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-30 00:30:51,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-30 00:30:51,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1936583731, now seen corresponding path program 7 times [2025-01-30 00:30:51,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-30 00:30:51,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687195518] [2025-01-30 00:30:51,788 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-01-30 00:30:51,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-30 00:30:51,794 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-01-30 00:30:51,797 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-01-30 00:30:51,797 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-30 00:30:51,798 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-30 00:30:51,866 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-30 00:30:51,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-30 00:30:51,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687195518] [2025-01-30 00:30:51,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687195518] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-30 00:30:51,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-30 00:30:51,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-01-30 00:30:51,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741854708] [2025-01-30 00:30:51,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-30 00:30:51,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-30 00:30:51,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-30 00:30:51,867 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-30 00:30:51,867 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2025-01-30 00:30:51,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-30 00:30:51,867 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-30 00:30:51,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 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) [2025-01-30 00:30:51,867 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-30 00:30:51,867 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-30 00:30:51,867 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-30 00:30:51,867 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-01-30 00:30:51,867 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-01-30 00:30:51,867 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2025-01-30 00:30:51,867 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2025-01-30 00:30:51,867 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2025-01-30 00:30:51,867 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-30 00:30:52,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-30 00:30:52,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-30 00:30:52,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-30 00:30:52,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-30 00:30:52,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-30 00:30:52,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2025-01-30 00:30:52,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2025-01-30 00:30:52,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2025-01-30 00:30:52,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-30 00:30:52,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-01-30 00:30:52,125 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-30 00:30:52,126 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-30 00:30:52,126 INFO L139 ounterexampleChecker]: Examining path program with hash -537276429, occurence #4 [2025-01-30 00:30:52,126 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-30 00:30:52,126 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-01-30 00:30:52,126 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-30 00:30:52,126 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2025-01-30 00:30:52,126 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-30 00:30:52,126 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2025-01-30 00:30:52,126 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-30 00:30:52,126 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-30 00:30:52,126 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-30 00:30:52,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-30 00:30:52,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1669910010, now seen corresponding path program 8 times [2025-01-30 00:30:52,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-30 00:30:52,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095089138] [2025-01-30 00:30:52,126 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-30 00:30:52,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-30 00:30:52,131 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 23 statements into 2 equivalence classes. [2025-01-30 00:30:52,136 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 23 of 23 statements. [2025-01-30 00:30:52,136 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-30 00:30:52,136 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-30 00:30:52,182 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-30 00:30:52,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-30 00:30:52,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095089138] [2025-01-30 00:30:52,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095089138] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-30 00:30:52,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-30 00:30:52,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-01-30 00:30:52,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278204039] [2025-01-30 00:30:52,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-30 00:30:52,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-30 00:30:52,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-30 00:30:52,183 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-30 00:30:52,183 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2025-01-30 00:30:52,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-30 00:30:52,183 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-30 00:30:52,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 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) [2025-01-30 00:30:52,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-30 00:30:52,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-30 00:30:52,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-30 00:30:52,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-01-30 00:30:52,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-01-30 00:30:52,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2025-01-30 00:30:52,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2025-01-30 00:30:52,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2025-01-30 00:30:52,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-30 00:30:52,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-30 00:30:52,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-30 00:30:52,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-30 00:30:52,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-30 00:30:52,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-30 00:30:52,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-30 00:30:52,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2025-01-30 00:30:52,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2025-01-30 00:30:52,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2025-01-30 00:30:52,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-30 00:30:52,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-30 00:30:52,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-01-30 00:30:52,256 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-30 00:30:52,256 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-30 00:30:52,256 INFO L139 ounterexampleChecker]: Examining path program with hash -1930449165, occurence #1 [2025-01-30 00:30:52,256 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-30 00:30:52,256 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-30 00:30:52,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-30 00:30:52,256 INFO L85 PathProgramCache]: Analyzing trace with hash -815551919, now seen corresponding path program 1 times [2025-01-30 00:30:52,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-30 00:30:52,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662529580] [2025-01-30 00:30:52,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-30 00:30:52,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-30 00:30:52,258 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-01-30 00:30:52,259 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-01-30 00:30:52,259 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-30 00:30:52,259 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-30 00:30:52,267 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-30 00:30:52,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-30 00:30:52,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662529580] [2025-01-30 00:30:52,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662529580] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-30 00:30:52,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-30 00:30:52,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-30 00:30:52,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560632976] [2025-01-30 00:30:52,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-30 00:30:52,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-30 00:30:52,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-30 00:30:52,268 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-30 00:30:52,268 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-30 00:30:52,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-30 00:30:52,268 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-30 00:30:52,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2025-01-30 00:30:52,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-30 00:30:52,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-30 00:30:52,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-30 00:30:52,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-01-30 00:30:52,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-01-30 00:30:52,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2025-01-30 00:30:52,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2025-01-30 00:30:52,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2025-01-30 00:30:52,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-30 00:30:52,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-30 00:30:52,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-30 00:30:52,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-30 00:30:52,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-30 00:30:52,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-30 00:30:52,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-30 00:30:52,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-30 00:30:52,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2025-01-30 00:30:52,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2025-01-30 00:30:52,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2025-01-30 00:30:52,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-30 00:30:52,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-30 00:30:52,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-30 00:30:52,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-01-30 00:30:52,326 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-30 00:30:52,326 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-30 00:30:52,326 INFO L139 ounterexampleChecker]: Examining path program with hash 1601213920, occurence #1 [2025-01-30 00:30:52,326 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-30 00:30:52,326 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-30 00:30:52,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-30 00:30:52,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1462359873, now seen corresponding path program 1 times [2025-01-30 00:30:52,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-30 00:30:52,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641780733] [2025-01-30 00:30:52,326 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-30 00:30:52,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-30 00:30:52,328 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-01-30 00:30:52,329 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-01-30 00:30:52,329 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-30 00:30:52,329 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-30 00:30:52,339 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-30 00:30:52,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-30 00:30:52,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641780733] [2025-01-30 00:30:52,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641780733] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-30 00:30:52,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-30 00:30:52,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-30 00:30:52,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834972265] [2025-01-30 00:30:52,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-30 00:30:52,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-30 00:30:52,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-30 00:30:52,340 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-30 00:30:52,340 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-30 00:30:52,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-30 00:30:52,340 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-30 00:30:52,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2025-01-30 00:30:52,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-30 00:30:52,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-30 00:30:52,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-30 00:30:52,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-01-30 00:30:52,341 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-01-30 00:30:52,341 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2025-01-30 00:30:52,341 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2025-01-30 00:30:52,341 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2025-01-30 00:30:52,341 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-30 00:30:52,341 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-30 00:30:52,341 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-30 00:30:52,341 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-30 00:30:52,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-30 00:30:52,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-30 00:30:52,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-30 00:30:52,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-30 00:30:52,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-30 00:30:52,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2025-01-30 00:30:52,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2025-01-30 00:30:52,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2025-01-30 00:30:52,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-30 00:30:52,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-30 00:30:52,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-30 00:30:52,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-30 00:30:52,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-01-30 00:30:52,366 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-30 00:30:52,366 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-30 00:30:52,366 INFO L139 ounterexampleChecker]: Examining path program with hash -1866141940, occurence #1 [2025-01-30 00:30:52,366 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-30 00:30:52,366 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-30 00:30:52,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-30 00:30:52,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1190812925, now seen corresponding path program 1 times [2025-01-30 00:30:52,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-30 00:30:52,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261550931] [2025-01-30 00:30:52,367 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-30 00:30:52,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-30 00:30:52,369 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-01-30 00:30:52,370 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-01-30 00:30:52,370 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-30 00:30:52,370 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-30 00:30:52,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-30 00:30:52,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-30 00:30:52,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261550931] [2025-01-30 00:30:52,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261550931] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-30 00:30:52,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-30 00:30:52,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-30 00:30:52,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931547457] [2025-01-30 00:30:52,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-30 00:30:52,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-30 00:30:52,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-30 00:30:52,448 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-30 00:30:52,448 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-30 00:30:52,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-30 00:30:52,448 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-30 00:30:52,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2025-01-30 00:30:52,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-30 00:30:52,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-30 00:30:52,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-01-30 00:30:52,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-01-30 00:30:52,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-01-30 00:30:52,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2025-01-30 00:30:52,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2025-01-30 00:30:52,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2025-01-30 00:30:52,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-30 00:30:52,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-30 00:30:52,449 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-30 00:30:52,449 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-30 00:30:52,449 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-30 00:30:52,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-30 00:30:52,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-30 00:30:52,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-30 00:30:52,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-30 00:30:52,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-30 00:30:52,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2025-01-30 00:30:52,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2025-01-30 00:30:52,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2025-01-30 00:30:52,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-30 00:30:52,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-30 00:30:52,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-30 00:30:52,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-30 00:30:52,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-30 00:30:52,501 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2025-01-30 00:30:52,501 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2025-01-30 00:30:52,501 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2025-01-30 00:30:52,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-01-30 00:30:52,505 INFO L422 BasicCegarLoop]: Path program histogram: [8, 1, 1, 1, 1, 1] [2025-01-30 00:30:52,507 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-01-30 00:30:52,507 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-30 00:30:52,515 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2025-01-30 00:30:52,516 INFO L201 PluginConnector]: Adding new model nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.01 12:30:52 BasicIcfg [2025-01-30 00:30:52,516 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-30 00:30:52,516 INFO L158 Benchmark]: Toolchain (without parser) took 15011.78ms. Allocated memory was 167.8MB in the beginning and 352.3MB in the end (delta: 184.5MB). Free memory was 95.1MB in the beginning and 177.0MB in the end (delta: -81.9MB). Peak memory consumption was 107.6MB. Max. memory is 16.0GB. [2025-01-30 00:30:52,517 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.14ms. Allocated memory is still 167.8MB. Free memory is still 96.0MB. There was no memory consumed. Max. memory is 16.0GB. [2025-01-30 00:30:52,517 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.85ms. Allocated memory is still 167.8MB. Free memory was 95.1MB in the beginning and 93.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.0GB. [2025-01-30 00:30:52,517 INFO L158 Benchmark]: Boogie Preprocessor took 12.65ms. Allocated memory is still 167.8MB. Free memory was 93.2MB in the beginning and 92.5MB in the end (delta: 677.3kB). There was no memory consumed. Max. memory is 16.0GB. [2025-01-30 00:30:52,517 INFO L158 Benchmark]: RCFGBuilder took 260.66ms. Allocated memory is still 167.8MB. Free memory was 92.5MB in the beginning and 77.8MB in the end (delta: 14.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2025-01-30 00:30:52,517 INFO L158 Benchmark]: TraceAbstraction took 14716.10ms. Allocated memory was 167.8MB in the beginning and 352.3MB in the end (delta: 184.5MB). Free memory was 76.9MB in the beginning and 177.0MB in the end (delta: -100.1MB). Peak memory consumption was 90.8MB. Max. memory is 16.0GB. [2025-01-30 00:30:52,518 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 0.14ms. Allocated memory is still 167.8MB. Free memory is still 96.0MB. There was no memory consumed. Max. memory is 16.0GB. * Boogie Procedure Inliner took 17.85ms. Allocated memory is still 167.8MB. Free memory was 95.1MB in the beginning and 93.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.0GB. * Boogie Preprocessor took 12.65ms. Allocated memory is still 167.8MB. Free memory was 93.2MB in the beginning and 92.5MB in the end (delta: 677.3kB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 260.66ms. Allocated memory is still 167.8MB. Free memory was 92.5MB in the beginning and 77.8MB in the end (delta: 14.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 14716.10ms. Allocated memory was 167.8MB in the beginning and 352.3MB in the end (delta: 184.5MB). Free memory was 76.9MB in the beginning and 177.0MB in the end (delta: -100.1MB). Peak memory consumption was 90.8MB. 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: 1073, independent: 772, independent conditional: 627, independent unconditional: 145, dependent: 301, dependent conditional: 301, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 772, independent: 772, independent conditional: 627, independent unconditional: 145, 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: 772, independent: 772, independent conditional: 627, independent unconditional: 145, 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: 772, independent: 772, independent conditional: 627, independent unconditional: 145, 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: 772, independent: 772, independent conditional: 0, independent unconditional: 772, 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: 772, independent: 772, independent conditional: 0, independent unconditional: 772, 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: 148, independent: 148, independent conditional: 0, independent unconditional: 148, 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: 148, independent: 147, independent conditional: 0, independent unconditional: 147, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 1, independent: 1, independent conditional: 0, independent unconditional: 1, 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: 1, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 27, independent: 27, independent conditional: 0, independent unconditional: 27, 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: 772, independent: 624, independent conditional: 0, independent unconditional: 624, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 148, unknown conditional: 0, unknown unconditional: 148] , Statistics on independence cache: Total cache size (in pairs): 148, Positive cache size: 148, Positive conditional cache size: 0, Positive unconditional cache size: 148, 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: 627, Maximal queried relation: 0, Independence queries for same thread: 301, Persistent sets #1 benchmarks: Persistent set computation time: 0.0s, Number of persistent set computation: 32, Number of trivial persistent sets: 23, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 145, independent: 145, independent conditional: 0, independent unconditional: 145, 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: 1073, independent: 772, independent conditional: 627, independent unconditional: 145, dependent: 301, dependent conditional: 301, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 772, independent: 772, independent conditional: 627, independent unconditional: 145, 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: 772, independent: 772, independent conditional: 627, independent unconditional: 145, 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: 772, independent: 772, independent conditional: 627, independent unconditional: 145, 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: 772, independent: 772, independent conditional: 0, independent unconditional: 772, 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: 772, independent: 772, independent conditional: 0, independent unconditional: 772, 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: 148, independent: 148, independent conditional: 0, independent unconditional: 148, 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: 148, independent: 147, independent conditional: 0, independent unconditional: 147, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 1, independent: 1, independent conditional: 0, independent unconditional: 1, 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: 1, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 27, independent: 27, independent conditional: 0, independent unconditional: 27, 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: 772, independent: 624, independent conditional: 0, independent unconditional: 624, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 148, unknown conditional: 0, unknown unconditional: 148] , Statistics on independence cache: Total cache size (in pairs): 148, Positive cache size: 148, Positive conditional cache size: 0, Positive unconditional cache size: 148, 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: 627, Maximal queried relation: 0, Independence queries for same thread: 301 - PositiveResult [Line: 100]: 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, 27 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 14.6s, OverallIterations: 13, TraceHistogramMax: 0, PathProgramHistogramMax: 8, EmptinessCheckTime: 3.7s, 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: 160, 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, 0.2s SatisfiabilityAnalysisTime, 9.0s InterpolantComputationTime, 308 NumberOfCodeBlocks, 308 NumberOfCodeBlocksAsserted, 42 NumberOfCheckSat, 384 ConstructedInterpolants, 0 QuantifiedInterpolants, 4235 SizeOfPredicates, 63 NumberOfNonLiveVariables, 465 ConjunctsInSsa, 137 ConjunctsInUnsatCore, 25 InterpolantComputations, 7 PerfectInterpolantSequences, 63/189 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: 2, 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! [2025-01-30 00:30:52,533 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...