/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_THREAD_INSTANCE --traceabstraction.maximal.amount.of.steps.the.threads.are.allowed.to.take.successively 1 --traceabstraction.enable.heuristic.with.loops.as.step.type false --traceabstraction.considered.threads.and.their.maximal.amount.of.steps X --traceabstraction.defines.what.statements.are.considered.a.step.in.por ALL_READ_WRITE -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-1.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.orders-32214ab [2023-05-19 17:06:20,590 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2023-05-19 17:06:20,693 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2023-05-19 17:06:20,727 INFO L113 SettingsManager]: Loading preferences was successful [2023-05-19 17:06:20,727 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-05-19 17:06:20,728 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-05-19 17:06:20,728 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-05-19 17:06:20,729 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-05-19 17:06:20,729 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-05-19 17:06:20,729 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-05-19 17:06:20,729 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-05-19 17:06:20,730 INFO L138 SettingsManager]: * Use SBE=true [2023-05-19 17:06:20,730 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-05-19 17:06:20,730 INFO L138 SettingsManager]: * sizeof long=4 [2023-05-19 17:06:20,731 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-05-19 17:06:20,731 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-05-19 17:06:20,731 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-05-19 17:06:20,731 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-05-19 17:06:20,731 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-05-19 17:06:20,731 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-05-19 17:06:20,731 INFO L138 SettingsManager]: * sizeof long double=12 [2023-05-19 17:06:20,731 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-05-19 17:06:20,732 INFO L138 SettingsManager]: * Use constant arrays=true [2023-05-19 17:06:20,732 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-05-19 17:06:20,732 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-05-19 17:06:20,732 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-05-19 17:06:20,732 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-05-19 17:06:20,732 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-05-19 17:06:20,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-19 17:06:20,733 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-05-19 17:06:20,733 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-05-19 17:06:20,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-05-19 17:06:20,733 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-05-19 17:06:20,733 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-05-19 17:06:20,733 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-05-19 17:06:20,733 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-05-19 17:06:20,734 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-05-19 17:06:20,734 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-05-19 17:06:20,734 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-05-19 17:06:20,734 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_THREAD_INSTANCE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Maximal amount of steps the threads are allowed to take successively -> 1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Enable heuristic with loops as step type -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Considered threads and their maximal amount of steps -> X Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Defines what statements are considered a step in POR -> ALL_READ_WRITE [2023-05-19 17:06:20,946 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-05-19 17:06:20,975 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-05-19 17:06:20,977 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-05-19 17:06:20,978 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-05-19 17:06:20,979 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2023-05-19 17:06:20,980 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-1.wvr.bpl [2023-05-19 17:06:20,980 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-1.wvr.bpl' [2023-05-19 17:06:21,001 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-05-19 17:06:21,003 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-05-19 17:06:21,004 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-05-19 17:06:21,004 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-05-19 17:06:21,004 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-05-19 17:06:21,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 05:06:21" (1/1) ... [2023-05-19 17:06:21,022 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 05:06:21" (1/1) ... [2023-05-19 17:06:21,026 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-05-19 17:06:21,027 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-05-19 17:06:21,028 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-05-19 17:06:21,028 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-05-19 17:06:21,029 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-05-19 17:06:21,036 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 05:06:21" (1/1) ... [2023-05-19 17:06:21,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 05:06:21" (1/1) ... [2023-05-19 17:06:21,037 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 05:06:21" (1/1) ... [2023-05-19 17:06:21,037 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 05:06:21" (1/1) ... [2023-05-19 17:06:21,039 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 05:06:21" (1/1) ... [2023-05-19 17:06:21,042 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 05:06:21" (1/1) ... [2023-05-19 17:06:21,043 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 05:06:21" (1/1) ... [2023-05-19 17:06:21,044 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 05:06:21" (1/1) ... [2023-05-19 17:06:21,049 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-05-19 17:06:21,050 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-05-19 17:06:21,051 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-05-19 17:06:21,051 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-05-19 17:06:21,052 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 05:06:21" (1/1) ... [2023-05-19 17:06:21,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-19 17:06:21,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 17:06:21,082 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-05-19 17:06:21,103 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-05-19 17:06:21,119 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-05-19 17:06:21,119 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-05-19 17:06:21,120 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-05-19 17:06:21,120 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-05-19 17:06:21,120 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-05-19 17:06:21,121 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-05-19 17:06:21,121 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-05-19 17:06:21,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-05-19 17:06:21,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-05-19 17:06:21,122 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2023-05-19 17:06:21,171 INFO L235 CfgBuilder]: Building ICFG [2023-05-19 17:06:21,173 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-05-19 17:06:21,304 INFO L276 CfgBuilder]: Performing block encoding [2023-05-19 17:06:21,318 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-05-19 17:06:21,318 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2023-05-19 17:06:21,320 INFO L202 PluginConnector]: Adding new model misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.05 05:06:21 BoogieIcfgContainer [2023-05-19 17:06:21,320 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-05-19 17:06:21,322 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-05-19 17:06:21,322 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-05-19 17:06:21,325 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-05-19 17:06:21,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 05:06:21" (1/2) ... [2023-05-19 17:06:21,326 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f03bdd1 and model type misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.05 05:06:21, skipping insertion in model container [2023-05-19 17:06:21,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.05 05:06:21" (2/2) ... [2023-05-19 17:06:21,328 INFO L112 eAbstractionObserver]: Analyzing ICFG misc-1.wvr.bpl [2023-05-19 17:06:21,335 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-05-19 17:06:21,343 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-05-19 17:06:21,343 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-05-19 17:06:21,343 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-05-19 17:06:21,375 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-05-19 17:06:21,427 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-19 17:06:21,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-19 17:06:21,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 17:06:21,432 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-05-19 17:06:21,474 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-05-19 17:06:21,505 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-19 17:06:21,537 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-05-19 17:06:21,549 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@3f293493, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-19 17:06:21,549 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-05-19 17:06:21,689 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-19 17:06:21,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 17:06:21,695 INFO L85 PathProgramCache]: Analyzing trace with hash -780537796, now seen corresponding path program 1 times [2023-05-19 17:06:21,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 17:06:21,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703987772] [2023-05-19 17:06:21,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 17:06:21,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 17:06:21,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 17:06:22,116 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 17:06:22,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 17:06:22,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703987772] [2023-05-19 17:06:22,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703987772] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-19 17:06:22,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1405348714] [2023-05-19 17:06:22,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 17:06:22,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 17:06:22,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 17:06:22,125 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-19 17:06:22,167 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-05-19 17:06:22,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 17:06:22,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 6 conjunts are in the unsatisfiable core [2023-05-19 17:06:22,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-19 17:06:22,258 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 17:06:22,259 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-19 17:06:22,321 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 17:06:22,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1405348714] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-19 17:06:22,322 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-19 17:06:22,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 6 [2023-05-19 17:06:22,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261608903] [2023-05-19 17:06:22,325 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-19 17:06:22,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-05-19 17:06:22,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 17:06:22,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-05-19 17:06:22,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-05-19 17:06:22,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 17:06:22,351 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 17:06:22,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 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) [2023-05-19 17:06:22,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 17:06:22,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-19 17:06:22,473 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-05-19 17:06:22,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-05-19 17:06:22,661 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-19 17:06:22,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 17:06:22,662 INFO L85 PathProgramCache]: Analyzing trace with hash 628478871, now seen corresponding path program 2 times [2023-05-19 17:06:22,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 17:06:22,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469580880] [2023-05-19 17:06:22,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 17:06:22,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 17:06:22,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 17:06:22,941 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 17:06:22,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 17:06:22,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469580880] [2023-05-19 17:06:22,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469580880] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-19 17:06:22,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [189304957] [2023-05-19 17:06:22,942 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-05-19 17:06:22,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 17:06:22,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 17:06:22,943 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-19 17:06:22,946 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-05-19 17:06:22,975 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-05-19 17:06:22,975 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-19 17:06:22,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 21 conjunts are in the unsatisfiable core [2023-05-19 17:06:22,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-19 17:06:23,132 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-05-19 17:06:23,244 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 17:06:23,244 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-19 17:06:23,382 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-19 17:06:23,383 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 18 [2023-05-19 17:06:23,409 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2023-05-19 17:06:23,471 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 17:06:23,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [189304957] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-19 17:06:23,472 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-19 17:06:23,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 14 [2023-05-19 17:06:23,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315212656] [2023-05-19 17:06:23,472 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-19 17:06:23,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-05-19 17:06:23,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 17:06:23,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-05-19 17:06:23,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2023-05-19 17:06:23,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 17:06:23,474 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 17:06:23,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.2) internal successors, (48), 14 states have internal predecessors, (48), 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) [2023-05-19 17:06:23,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-19 17:06:23,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 17:06:23,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-19 17:06:23,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-19 17:06:23,727 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-05-19 17:06:23,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 17:06:23,925 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-19 17:06:23,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 17:06:23,926 INFO L85 PathProgramCache]: Analyzing trace with hash -733803518, now seen corresponding path program 1 times [2023-05-19 17:06:23,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 17:06:23,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349846818] [2023-05-19 17:06:23,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 17:06:23,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 17:06:23,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 17:06:24,600 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 17:06:24,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 17:06:24,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349846818] [2023-05-19 17:06:24,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349846818] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-19 17:06:24,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1986255516] [2023-05-19 17:06:24,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 17:06:24,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 17:06:24,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 17:06:24,607 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-19 17:06:24,639 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-05-19 17:06:24,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 17:06:24,650 WARN L261 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 31 conjunts are in the unsatisfiable core [2023-05-19 17:06:24,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-19 17:06:24,968 INFO L356 Elim1Store]: treesize reduction 34, result has 17.1 percent of original size [2023-05-19 17:06:24,969 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 33 treesize of output 30 [2023-05-19 17:06:25,047 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 17:06:25,048 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-19 17:06:25,313 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-19 17:06:25,313 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 24 treesize of output 49 [2023-05-19 17:06:25,383 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 17:06:25,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:06:25,385 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2023-05-19 17:06:25,455 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 17:06:25,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1986255516] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-19 17:06:25,455 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-19 17:06:25,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11, 11] total 30 [2023-05-19 17:06:25,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167390622] [2023-05-19 17:06:25,456 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-19 17:06:25,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-05-19 17:06:25,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 17:06:25,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-05-19 17:06:25,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=783, Unknown=0, NotChecked=0, Total=930 [2023-05-19 17:06:25,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 17:06:25,459 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 17:06:25,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 2.2580645161290325) internal successors, (70), 30 states have internal predecessors, (70), 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) [2023-05-19 17:06:25,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-19 17:06:25,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-19 17:06:25,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 17:06:26,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-19 17:06:26,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-19 17:06:26,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-05-19 17:06:26,339 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-05-19 17:06:26,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 17:06:26,529 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-19 17:06:26,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 17:06:26,530 INFO L85 PathProgramCache]: Analyzing trace with hash -2088802070, now seen corresponding path program 2 times [2023-05-19 17:06:26,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 17:06:26,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577675363] [2023-05-19 17:06:26,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 17:06:26,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 17:06:26,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 17:06:26,628 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 20 proven. 10 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-05-19 17:06:26,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 17:06:26,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577675363] [2023-05-19 17:06:26,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577675363] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-19 17:06:26,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [844260553] [2023-05-19 17:06:26,629 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-05-19 17:06:26,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 17:06:26,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 17:06:26,630 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-19 17:06:26,658 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-05-19 17:06:26,667 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-05-19 17:06:26,667 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-19 17:06:26,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 10 conjunts are in the unsatisfiable core [2023-05-19 17:06:26,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-19 17:06:26,716 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 20 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-05-19 17:06:26,716 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-19 17:06:26,784 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 20 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-05-19 17:06:26,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [844260553] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-19 17:06:26,785 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-19 17:06:26,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 6 [2023-05-19 17:06:26,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273161168] [2023-05-19 17:06:26,785 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-19 17:06:26,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-05-19 17:06:26,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 17:06:26,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-05-19 17:06:26,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-05-19 17:06:26,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 17:06:26,787 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 17:06:26,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-19 17:06:26,787 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-05-19 17:06:26,787 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-19 17:06:26,787 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2023-05-19 17:06:26,787 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 17:06:26,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-19 17:06:26,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-19 17:06:26,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-05-19 17:06:26,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-05-19 17:06:26,933 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-05-19 17:06:27,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 17:06:27,125 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-19 17:06:27,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 17:06:27,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1891337533, now seen corresponding path program 3 times [2023-05-19 17:06:27,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 17:06:27,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194987227] [2023-05-19 17:06:27,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 17:06:27,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 17:06:27,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 17:06:27,278 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 29 proven. 21 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-05-19 17:06:27,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 17:06:27,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194987227] [2023-05-19 17:06:27,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194987227] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-19 17:06:27,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1469504842] [2023-05-19 17:06:27,280 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-05-19 17:06:27,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 17:06:27,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 17:06:27,281 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-19 17:06:27,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-05-19 17:06:27,328 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2023-05-19 17:06:27,328 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-19 17:06:27,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 12 conjunts are in the unsatisfiable core [2023-05-19 17:06:27,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-19 17:06:27,391 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 30 proven. 12 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-05-19 17:06:27,391 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-19 17:06:27,499 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 30 proven. 12 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-05-19 17:06:27,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1469504842] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-19 17:06:27,500 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-19 17:06:27,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 7 [2023-05-19 17:06:27,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877962030] [2023-05-19 17:06:27,500 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-19 17:06:27,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-05-19 17:06:27,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 17:06:27,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-05-19 17:06:27,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-05-19 17:06:27,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 17:06:27,503 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 17:06:27,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-19 17:06:27,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-05-19 17:06:27,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-19 17:06:27,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2023-05-19 17:06:27,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-05-19 17:06:27,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 17:06:27,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-19 17:06:27,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-19 17:06:27,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-05-19 17:06:27,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-05-19 17:06:27,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-05-19 17:06:27,731 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-05-19 17:06:27,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 17:06:27,925 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-19 17:06:27,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 17:06:27,926 INFO L85 PathProgramCache]: Analyzing trace with hash -2113130620, now seen corresponding path program 4 times [2023-05-19 17:06:27,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 17:06:27,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550173050] [2023-05-19 17:06:27,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 17:06:27,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 17:06:27,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 17:06:30,113 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 32 proven. 200 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-05-19 17:06:30,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 17:06:30,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550173050] [2023-05-19 17:06:30,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550173050] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-19 17:06:30,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1176402328] [2023-05-19 17:06:30,114 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-05-19 17:06:30,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 17:06:30,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 17:06:30,115 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-19 17:06:30,140 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-05-19 17:06:30,164 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-05-19 17:06:30,164 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-19 17:06:30,166 WARN L261 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 91 conjunts are in the unsatisfiable core [2023-05-19 17:06:30,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-19 17:06:32,988 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 25 [2023-05-19 17:06:33,057 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 0 proven. 254 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 17:06:33,058 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-19 17:06:36,578 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-19 17:06:36,578 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 83 treesize of output 648 [2023-05-19 17:06:45,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:06:45,623 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 17:06:45,624 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 17:06:45,624 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 17:06:45,625 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 17:06:45,625 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 17:06:45,626 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 17:06:45,626 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 17:06:45,628 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 17:06:45,628 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 17:06:45,629 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 17:06:45,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:06:45,630 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 17:06:45,630 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 17:06:45,631 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 17:06:45,633 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 17:06:45,633 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 17:06:45,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:06:45,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:06:45,635 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 17:06:45,636 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 17:06:45,636 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 17:06:45,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:06:45,638 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 17:06:45,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:06:45,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:06:45,642 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 16 select indices, 16 select index equivalence classes, 28 disjoint index pairs (out of 120 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 7 [2023-05-19 17:06:45,741 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 0 proven. 254 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 17:06:45,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1176402328] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-19 17:06:45,742 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-19 17:06:45,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 41, 41] total 107 [2023-05-19 17:06:45,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769657275] [2023-05-19 17:06:45,742 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-19 17:06:45,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 108 states [2023-05-19 17:06:45,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 17:06:45,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 108 interpolants. [2023-05-19 17:06:45,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=665, Invalid=10891, Unknown=0, NotChecked=0, Total=11556 [2023-05-19 17:06:45,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 17:06:45,748 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 17:06:45,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 108 states, 108 states have (on average 2.064814814814815) internal successors, (223), 107 states have internal predecessors, (223), 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) [2023-05-19 17:06:45,749 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-05-19 17:06:45,749 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-19 17:06:45,749 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2023-05-19 17:06:45,749 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-05-19 17:06:45,749 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-05-19 17:06:45,749 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 17:07:00,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-19 17:07:00,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-19 17:07:00,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-05-19 17:07:00,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-05-19 17:07:00,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-05-19 17:07:00,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2023-05-19 17:07:00,193 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-05-19 17:07:00,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 17:07:00,379 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-19 17:07:00,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 17:07:00,379 INFO L85 PathProgramCache]: Analyzing trace with hash -612471831, now seen corresponding path program 5 times [2023-05-19 17:07:00,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 17:07:00,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348080814] [2023-05-19 17:07:00,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 17:07:00,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 17:07:00,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 17:07:00,761 INFO L134 CoverageAnalysis]: Checked inductivity of 814 backedges. 476 proven. 175 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2023-05-19 17:07:00,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 17:07:00,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348080814] [2023-05-19 17:07:00,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348080814] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-19 17:07:00,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [503418251] [2023-05-19 17:07:00,762 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-05-19 17:07:00,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 17:07:00,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 17:07:00,763 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-19 17:07:00,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-05-19 17:07:00,831 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 25 check-sat command(s) [2023-05-19 17:07:00,831 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-19 17:07:00,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 31 conjunts are in the unsatisfiable core [2023-05-19 17:07:00,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-19 17:07:00,987 INFO L134 CoverageAnalysis]: Checked inductivity of 814 backedges. 500 proven. 140 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2023-05-19 17:07:00,987 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-19 17:07:01,289 INFO L134 CoverageAnalysis]: Checked inductivity of 814 backedges. 500 proven. 140 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2023-05-19 17:07:01,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [503418251] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-19 17:07:01,289 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-19 17:07:01,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 12 [2023-05-19 17:07:01,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526820950] [2023-05-19 17:07:01,289 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-19 17:07:01,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-05-19 17:07:01,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 17:07:01,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-05-19 17:07:01,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2023-05-19 17:07:01,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 17:07:01,291 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 17:07:01,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.0) internal successors, (91), 12 states have internal predecessors, (91), 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) [2023-05-19 17:07:01,291 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-05-19 17:07:01,291 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-19 17:07:01,291 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2023-05-19 17:07:01,291 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-05-19 17:07:01,291 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-05-19 17:07:01,291 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 130 states. [2023-05-19 17:07:01,291 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 17:07:01,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-19 17:07:01,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-19 17:07:01,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-05-19 17:07:01,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-05-19 17:07:01,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-05-19 17:07:01,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. [2023-05-19 17:07:01,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-05-19 17:07:01,713 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-05-19 17:07:01,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-05-19 17:07:01,894 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-19 17:07:01,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 17:07:01,894 INFO L85 PathProgramCache]: Analyzing trace with hash 465594842, now seen corresponding path program 6 times [2023-05-19 17:07:01,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 17:07:01,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946151240] [2023-05-19 17:07:01,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 17:07:01,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 17:07:01,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 17:07:07,434 INFO L134 CoverageAnalysis]: Checked inductivity of 1379 backedges. 590 proven. 713 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2023-05-19 17:07:07,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 17:07:07,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946151240] [2023-05-19 17:07:07,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946151240] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-19 17:07:07,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1599468903] [2023-05-19 17:07:07,434 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-05-19 17:07:07,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 17:07:07,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 17:07:07,437 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-19 17:07:07,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-05-19 17:07:07,526 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 31 check-sat command(s) [2023-05-19 17:07:07,526 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-19 17:07:07,530 WARN L261 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 195 conjunts are in the unsatisfiable core [2023-05-19 17:07:07,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-19 17:07:20,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:20,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:07:21,047 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-19 17:07:21,047 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 25 select indices, 25 select index equivalence classes, 272 disjoint index pairs (out of 300 index pairs), introduced 25 new quantified variables, introduced 28 case distinctions, treesize of input 129 treesize of output 281 [2023-05-19 17:07:21,768 INFO L134 CoverageAnalysis]: Checked inductivity of 1379 backedges. 0 proven. 1379 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 17:07:21,769 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-19 17:08:55,702 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 17:08:55,703 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 17:08:55,703 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 17:08:55,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:08:55,704 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 17:08:55,705 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 17:08:55,705 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 17:08:55,705 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 17:08:55,706 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 17:08:55,706 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 17:08:55,707 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 17:08:55,707 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 17:08:55,707 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 17:08:55,708 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 17:08:55,708 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 17:08:55,708 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 17:08:55,709 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 17:08:55,709 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 17:08:55,710 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 17:08:55,710 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 17:08:55,710 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 17:08:55,711 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 17:08:55,711 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 17:08:55,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:08:55,712 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 17:08:55,713 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 17:08:55,713 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 17:08:55,714 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 17:08:55,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 17:08:58,338 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-19 17:08:58,339 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 28 select indices, 28 select index equivalence classes, 91 disjoint index pairs (out of 378 index pairs), introduced 25 new quantified variables, introduced 242 case distinctions, treesize of input 141 treesize of output 1546 [2023-05-19 17:09:53,344 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2023-05-19 17:09:53,367 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-05-19 17:09:53,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 17:09:53,565 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Maybe an infinite loop at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:130) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:345) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:188) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:295) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:281) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:399) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:271) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:342) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-05-19 17:09:53,569 INFO L158 Benchmark]: Toolchain (without parser) took 212566.28ms. Allocated memory was 186.6MB in the beginning and 653.3MB in the end (delta: 466.6MB). Free memory was 146.6MB in the beginning and 360.2MB in the end (delta: -213.6MB). Peak memory consumption was 402.4MB. Max. memory is 8.0GB. [2023-05-19 17:09:53,569 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.15ms. Allocated memory is still 186.6MB. Free memory was 147.8MB in the beginning and 147.6MB in the end (delta: 135.3kB). There was no memory consumed. Max. memory is 8.0GB. [2023-05-19 17:09:53,569 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.14ms. Allocated memory is still 186.6MB. Free memory was 146.4MB in the beginning and 144.9MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-05-19 17:09:53,570 INFO L158 Benchmark]: Boogie Preprocessor took 20.74ms. Allocated memory is still 186.6MB. Free memory was 144.9MB in the beginning and 143.9MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-05-19 17:09:53,570 INFO L158 Benchmark]: RCFGBuilder took 269.43ms. Allocated memory is still 186.6MB. Free memory was 143.7MB in the beginning and 134.4MB in the end (delta: 9.3MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-05-19 17:09:53,570 INFO L158 Benchmark]: TraceAbstraction took 212246.31ms. Allocated memory was 186.6MB in the beginning and 653.3MB in the end (delta: 466.6MB). Free memory was 133.3MB in the beginning and 360.2MB in the end (delta: -226.9MB). Peak memory consumption was 388.7MB. Max. memory is 8.0GB. [2023-05-19 17:09:53,572 INFO L339 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 0.15ms. Allocated memory is still 186.6MB. Free memory was 147.8MB in the beginning and 147.6MB in the end (delta: 135.3kB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 24.14ms. Allocated memory is still 186.6MB. Free memory was 146.4MB in the beginning and 144.9MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 20.74ms. Allocated memory is still 186.6MB. Free memory was 144.9MB in the beginning and 143.9MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 269.43ms. Allocated memory is still 186.6MB. Free memory was 143.7MB in the beginning and 134.4MB in the end (delta: 9.3MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 212246.31ms. Allocated memory was 186.6MB in the beginning and 653.3MB in the end (delta: 466.6MB). Free memory was 133.3MB in the beginning and 360.2MB in the end (delta: -226.9MB). Peak memory consumption was 388.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Maybe an infinite loop de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Maybe an infinite loop: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:130) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-05-19 17:09:53,609 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2023-05-19 17:09:54,004 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2023-05-19 17:09:54,027 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request...