/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 GLOBAL_READ_WRITE -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/two-queue.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.orders-32214ab [2023-05-19 19:08:20,899 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2023-05-19 19:08:20,963 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2023-05-19 19:08:20,983 INFO L113 SettingsManager]: Loading preferences was successful [2023-05-19 19:08:20,983 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-05-19 19:08:20,983 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-05-19 19:08:20,983 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-05-19 19:08:20,984 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-05-19 19:08:20,984 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-05-19 19:08:20,985 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-05-19 19:08:20,985 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-05-19 19:08:20,985 INFO L138 SettingsManager]: * Use SBE=true [2023-05-19 19:08:20,985 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-05-19 19:08:20,986 INFO L138 SettingsManager]: * sizeof long=4 [2023-05-19 19:08:20,986 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-05-19 19:08:20,986 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-05-19 19:08:20,986 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-05-19 19:08:20,986 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-05-19 19:08:20,986 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-05-19 19:08:20,986 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-05-19 19:08:20,987 INFO L138 SettingsManager]: * sizeof long double=12 [2023-05-19 19:08:20,987 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-05-19 19:08:20,987 INFO L138 SettingsManager]: * Use constant arrays=true [2023-05-19 19:08:20,987 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-05-19 19:08:20,987 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-05-19 19:08:20,987 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-05-19 19:08:20,988 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-05-19 19:08:20,988 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-05-19 19:08:20,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-19 19:08:20,988 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-05-19 19:08:20,988 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-05-19 19:08:20,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-05-19 19:08:20,989 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-05-19 19:08:20,989 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-05-19 19:08:20,989 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-05-19 19:08:20,989 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-05-19 19:08:20,989 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-05-19 19:08:20,990 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-05-19 19:08:20,990 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-05-19 19:08:20,990 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_THREAD_INSTANCE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Maximal amount of steps the threads are allowed to take successively -> 1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Enable heuristic with loops as step type -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Considered threads and their maximal amount of steps -> X Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Defines what statements are considered a step in POR -> GLOBAL_READ_WRITE [2023-05-19 19:08:21,218 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-05-19 19:08:21,233 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-05-19 19:08:21,235 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-05-19 19:08:21,236 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-05-19 19:08:21,239 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2023-05-19 19:08:21,240 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/two-queue.wvr.bpl [2023-05-19 19:08:21,240 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/two-queue.wvr.bpl' [2023-05-19 19:08:21,265 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-05-19 19:08:21,266 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-05-19 19:08:21,267 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-05-19 19:08:21,267 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-05-19 19:08:21,267 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-05-19 19:08:21,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 07:08:21" (1/1) ... [2023-05-19 19:08:21,284 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 07:08:21" (1/1) ... [2023-05-19 19:08:21,290 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-05-19 19:08:21,291 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-05-19 19:08:21,293 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-05-19 19:08:21,293 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-05-19 19:08:21,293 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-05-19 19:08:21,300 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 07:08:21" (1/1) ... [2023-05-19 19:08:21,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 07:08:21" (1/1) ... [2023-05-19 19:08:21,301 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 07:08:21" (1/1) ... [2023-05-19 19:08:21,304 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 07:08:21" (1/1) ... [2023-05-19 19:08:21,307 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 07:08:21" (1/1) ... [2023-05-19 19:08:21,311 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 07:08:21" (1/1) ... [2023-05-19 19:08:21,312 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 07:08:21" (1/1) ... [2023-05-19 19:08:21,313 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 07:08:21" (1/1) ... [2023-05-19 19:08:21,314 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-05-19 19:08:21,317 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-05-19 19:08:21,317 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-05-19 19:08:21,317 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-05-19 19:08:21,318 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 07:08:21" (1/1) ... [2023-05-19 19:08:21,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-19 19:08:21,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 19:08:21,344 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 19:08:21,356 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 19:08:21,375 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-05-19 19:08:21,375 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-05-19 19:08:21,375 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-05-19 19:08:21,375 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-05-19 19:08:21,375 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-05-19 19:08:21,375 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-05-19 19:08:21,375 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-05-19 19:08:21,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-05-19 19:08:21,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-05-19 19:08:21,376 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 19:08:21,415 INFO L235 CfgBuilder]: Building ICFG [2023-05-19 19:08:21,417 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-05-19 19:08:21,521 INFO L276 CfgBuilder]: Performing block encoding [2023-05-19 19:08:21,558 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-05-19 19:08:21,558 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2023-05-19 19:08:21,560 INFO L202 PluginConnector]: Adding new model two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.05 07:08:21 BoogieIcfgContainer [2023-05-19 19:08:21,560 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-05-19 19:08:21,562 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-05-19 19:08:21,562 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-05-19 19:08:21,587 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-05-19 19:08:21,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.05 07:08:21" (1/2) ... [2023-05-19 19:08:21,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c23c3b7 and model type two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.05 07:08:21, skipping insertion in model container [2023-05-19 19:08:21,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.05 07:08:21" (2/2) ... [2023-05-19 19:08:21,589 INFO L112 eAbstractionObserver]: Analyzing ICFG two-queue.wvr.bpl [2023-05-19 19:08:21,596 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-05-19 19:08:21,620 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-05-19 19:08:21,620 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-05-19 19:08:21,620 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-05-19 19:08:21,662 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-05-19 19:08:21,701 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-19 19:08:21,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-19 19:08:21,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 19:08:21,703 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 19:08:21,704 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 19:08:21,733 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-19 19:08:21,747 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-05-19 19:08:21,753 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;@3b7a96bf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-19 19:08:21,753 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-05-19 19:08:21,867 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 19:08:21,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 19:08:21,872 INFO L85 PathProgramCache]: Analyzing trace with hash -592361880, now seen corresponding path program 1 times [2023-05-19 19:08:21,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 19:08:21,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071142933] [2023-05-19 19:08:21,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 19:08:21,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 19:08:21,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 19:08:22,135 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 19:08:22,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 19:08:22,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071142933] [2023-05-19 19:08:22,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071142933] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-19 19:08:22,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019481955] [2023-05-19 19:08:22,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 19:08:22,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 19:08:22,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 19:08:22,139 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 19:08:22,156 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 19:08:22,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 19:08:22,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 4 conjunts are in the unsatisfiable core [2023-05-19 19:08:22,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-19 19:08:22,310 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-05-19 19:08:22,311 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-05-19 19:08:22,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2019481955] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-19 19:08:22,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-05-19 19:08:22,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 4 [2023-05-19 19:08:22,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316832869] [2023-05-19 19:08:22,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-19 19:08:22,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-05-19 19:08:22,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 19:08:22,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-05-19 19:08:22,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-05-19 19:08:22,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 19:08:22,337 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 19:08:22,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 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 19:08:22,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 19:08:22,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-19 19:08:22,387 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 19:08:22,568 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 19:08:22,569 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 19:08:22,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 19:08:22,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1774299189, now seen corresponding path program 2 times [2023-05-19 19:08:22,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 19:08:22,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143862589] [2023-05-19 19:08:22,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 19:08:22,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 19:08:22,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 19:08:23,007 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 19:08:23,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 19:08:23,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143862589] [2023-05-19 19:08:23,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143862589] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-19 19:08:23,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1637304526] [2023-05-19 19:08:23,010 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-05-19 19:08:23,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 19:08:23,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 19:08:23,013 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 19:08:23,049 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 19:08:23,061 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-05-19 19:08:23,061 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-19 19:08:23,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 18 conjunts are in the unsatisfiable core [2023-05-19 19:08:23,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-19 19:08:23,213 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 20 treesize of output 14 [2023-05-19 19:08:23,247 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 19:08:23,349 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 19:08:23,349 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-19 19:08:23,624 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-19 19:08:23,625 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 38 treesize of output 40 [2023-05-19 19:08:23,683 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-19 19:08:23,684 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 45 treesize of output 43 [2023-05-19 19:08:23,825 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 19:08:23,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1637304526] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-19 19:08:23,827 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-19 19:08:23,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 19 [2023-05-19 19:08:23,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100213413] [2023-05-19 19:08:23,829 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-19 19:08:23,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-05-19 19:08:23,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 19:08:23,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-05-19 19:08:23,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=310, Unknown=0, NotChecked=0, Total=380 [2023-05-19 19:08:23,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 19:08:23,835 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 19:08:23,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 1.8) internal successors, (36), 19 states have internal predecessors, (36), 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 19:08:23,835 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-19 19:08:23,835 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 19:08:24,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-19 19:08:24,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-05-19 19:08:24,225 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 19:08:24,417 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 19:08:24,417 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 19:08:24,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 19:08:24,418 INFO L85 PathProgramCache]: Analyzing trace with hash -459963699, now seen corresponding path program 3 times [2023-05-19 19:08:24,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 19:08:24,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636416118] [2023-05-19 19:08:24,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 19:08:24,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 19:08:24,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 19:08:25,145 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 19:08:25,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 19:08:25,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636416118] [2023-05-19 19:08:25,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636416118] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-19 19:08:25,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1300603539] [2023-05-19 19:08:25,149 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-05-19 19:08:25,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 19:08:25,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 19:08:25,155 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 19:08:25,182 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 19:08:25,195 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-05-19 19:08:25,196 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-19 19:08:25,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 31 conjunts are in the unsatisfiable core [2023-05-19 19:08:25,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-19 19:08:25,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 19:08:25,722 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 19:08:25,723 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 27 [2023-05-19 19:08:25,771 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-19 19:08:25,771 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 31 treesize of output 17 [2023-05-19 19:08:25,915 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 19:08:25,915 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-19 19:08:26,786 INFO L356 Elim1Store]: treesize reduction 8, result has 90.1 percent of original size [2023-05-19 19:08:26,787 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 82 treesize of output 142 [2023-05-19 19:08:29,274 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-19 19:08:29,275 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 83 treesize of output 83 [2023-05-19 19:08:29,497 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 19:08:29,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1300603539] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-19 19:08:29,497 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-19 19:08:29,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 43 [2023-05-19 19:08:29,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547619626] [2023-05-19 19:08:29,498 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-19 19:08:29,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2023-05-19 19:08:29,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 19:08:29,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2023-05-19 19:08:29,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=1682, Unknown=0, NotChecked=0, Total=1892 [2023-05-19 19:08:29,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 19:08:29,500 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 19:08:29,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 1.5227272727272727) internal successors, (67), 43 states have internal predecessors, (67), 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 19:08:29,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-19 19:08:29,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-05-19 19:08:29,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 19:08:30,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-19 19:08:30,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-05-19 19:08:30,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-05-19 19:08:30,906 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 19:08:31,101 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 19:08:31,101 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 19:08:31,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 19:08:31,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1174422569, now seen corresponding path program 4 times [2023-05-19 19:08:31,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 19:08:31,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739991072] [2023-05-19 19:08:31,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 19:08:31,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 19:08:31,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 19:08:31,204 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 26 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-05-19 19:08:31,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 19:08:31,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739991072] [2023-05-19 19:08:31,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739991072] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-19 19:08:31,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1537751396] [2023-05-19 19:08:31,205 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-05-19 19:08:31,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 19:08:31,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 19:08:31,210 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 19:08:31,218 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 19:08:31,252 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-05-19 19:08:31,252 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-19 19:08:31,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 8 conjunts are in the unsatisfiable core [2023-05-19 19:08:31,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-19 19:08:31,287 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-05-19 19:08:31,288 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-05-19 19:08:31,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1537751396] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-19 19:08:31,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-05-19 19:08:31,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 4 [2023-05-19 19:08:31,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801479844] [2023-05-19 19:08:31,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-19 19:08:31,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-05-19 19:08:31,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 19:08:31,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-05-19 19:08:31,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-05-19 19:08:31,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 19:08:31,290 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 19:08:31,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 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 19:08:31,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-19 19:08:31,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-05-19 19:08:31,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2023-05-19 19:08:31,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 19:08:31,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-19 19:08:31,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-05-19 19:08:31,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-05-19 19:08:31,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-19 19:08:31,346 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 19:08:31,543 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 19:08:31,543 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 19:08:31,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 19:08:31,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1536667406, now seen corresponding path program 5 times [2023-05-19 19:08:31,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 19:08:31,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004494584] [2023-05-19 19:08:31,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 19:08:31,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 19:08:31,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 19:08:31,641 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 22 proven. 23 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-05-19 19:08:31,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 19:08:31,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004494584] [2023-05-19 19:08:31,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004494584] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-19 19:08:31,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1527634612] [2023-05-19 19:08:31,642 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-05-19 19:08:31,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 19:08:31,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 19:08:31,643 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 19:08:31,667 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 19:08:31,687 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2023-05-19 19:08:31,687 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-19 19:08:31,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 10 conjunts are in the unsatisfiable core [2023-05-19 19:08:31,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-19 19:08:31,737 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 22 proven. 15 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-05-19 19:08:31,737 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-19 19:08:31,806 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 22 proven. 15 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-05-19 19:08:31,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1527634612] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-19 19:08:31,807 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-19 19:08:31,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 5 [2023-05-19 19:08:31,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958314214] [2023-05-19 19:08:31,807 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-19 19:08:31,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-05-19 19:08:31,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 19:08:31,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-05-19 19:08:31,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-05-19 19:08:31,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 19:08:31,809 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 19:08:31,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 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 19:08:31,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-19 19:08:31,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-05-19 19:08:31,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2023-05-19 19:08:31,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-19 19:08:31,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 19:08:31,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-19 19:08:31,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-05-19 19:08:31,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-05-19 19:08:31,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-19 19:08:31,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-19 19:08:31,862 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-05-19 19:08:32,049 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 19:08:32,049 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 19:08:32,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 19:08:32,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1436272811, now seen corresponding path program 6 times [2023-05-19 19:08:32,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 19:08:32,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942861297] [2023-05-19 19:08:32,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 19:08:32,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 19:08:32,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 19:08:32,560 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-05-19 19:08:32,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 19:08:32,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942861297] [2023-05-19 19:08:32,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942861297] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-19 19:08:32,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [162676881] [2023-05-19 19:08:32,561 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-05-19 19:08:32,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 19:08:32,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 19:08:32,569 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 19:08:32,579 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 19:08:32,611 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2023-05-19 19:08:32,612 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-19 19:08:32,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 34 conjunts are in the unsatisfiable core [2023-05-19 19:08:32,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-19 19:08:32,863 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 19:08:32,863 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 9 [2023-05-19 19:08:32,871 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 13 treesize of output 9 [2023-05-19 19:08:32,958 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-05-19 19:08:32,959 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-19 19:08:33,200 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-19 19:08:33,200 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 34 treesize of output 36 [2023-05-19 19:08:33,354 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-19 19:08:33,354 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 28 treesize of output 28 [2023-05-19 19:08:33,674 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-05-19 19:08:33,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [162676881] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-19 19:08:33,674 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-19 19:08:33,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 38 [2023-05-19 19:08:33,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639525457] [2023-05-19 19:08:33,675 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-19 19:08:33,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2023-05-19 19:08:33,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 19:08:33,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2023-05-19 19:08:33,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=1308, Unknown=0, NotChecked=0, Total=1482 [2023-05-19 19:08:33,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 19:08:33,676 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 19:08:33,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 1.9487179487179487) internal successors, (76), 38 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-19 19:08:33,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-19 19:08:33,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-05-19 19:08:33,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2023-05-19 19:08:33,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-19 19:08:33,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-19 19:08:33,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 19:08:34,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-19 19:08:34,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-05-19 19:08:34,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-05-19 19:08:34,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-19 19:08:34,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-19 19:08:34,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-05-19 19:08:34,548 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-05-19 19:08:34,747 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 19:08:34,748 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 19:08:34,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 19:08:34,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1673332687, now seen corresponding path program 7 times [2023-05-19 19:08:34,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 19:08:34,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427333492] [2023-05-19 19:08:34,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 19:08:34,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 19:08:34,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 19:08:35,206 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 7 proven. 44 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-05-19 19:08:35,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 19:08:35,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427333492] [2023-05-19 19:08:35,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427333492] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-19 19:08:35,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [727568819] [2023-05-19 19:08:35,206 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-05-19 19:08:35,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 19:08:35,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 19:08:35,208 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 19:08:35,209 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 19:08:35,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 19:08:35,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 39 conjunts are in the unsatisfiable core [2023-05-19 19:08:35,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-19 19:08:35,429 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 13 treesize of output 9 [2023-05-19 19:08:35,435 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 13 treesize of output 9 [2023-05-19 19:08:35,511 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-05-19 19:08:35,511 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-19 19:08:35,731 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-19 19:08:35,731 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 34 treesize of output 36 [2023-05-19 19:08:35,847 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-19 19:08:35,847 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 28 treesize of output 28 [2023-05-19 19:08:36,011 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-05-19 19:08:36,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [727568819] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-19 19:08:36,012 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-19 19:08:36,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 16, 16] total 31 [2023-05-19 19:08:36,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257818059] [2023-05-19 19:08:36,012 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-19 19:08:36,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-05-19 19:08:36,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 19:08:36,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-05-19 19:08:36,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=887, Unknown=0, NotChecked=0, Total=992 [2023-05-19 19:08:36,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 19:08:36,013 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 19:08:36,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 1.75) internal successors, (56), 31 states have internal predecessors, (56), 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 19:08:36,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-19 19:08:36,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-05-19 19:08:36,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2023-05-19 19:08:36,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-19 19:08:36,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-19 19:08:36,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2023-05-19 19:08:36,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 19:08:36,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-19 19:08:36,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-05-19 19:08:36,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-05-19 19:08:36,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-19 19:08:36,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-19 19:08:36,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-05-19 19:08:36,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-05-19 19:08:36,921 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2023-05-19 19:08:36,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-05-19 19:08:36,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-05-19 19:08:36,938 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 19:08:37,133 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 19:08:37,137 INFO L444 BasicCegarLoop]: Path program histogram: [7] [2023-05-19 19:08:37,140 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-05-19 19:08:37,140 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-05-19 19:08:37,143 INFO L202 PluginConnector]: Adding new model two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.05 07:08:37 BasicIcfg [2023-05-19 19:08:37,143 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-05-19 19:08:37,143 INFO L158 Benchmark]: Toolchain (without parser) took 15877.11ms. Allocated memory was 190.8MB in the beginning and 229.6MB in the end (delta: 38.8MB). Free memory was 148.0MB in the beginning and 133.2MB in the end (delta: 14.8MB). Peak memory consumption was 54.1MB. Max. memory is 8.0GB. [2023-05-19 19:08:37,143 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.13ms. Allocated memory is still 190.8MB. Free memory is still 149.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-05-19 19:08:37,144 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.93ms. Allocated memory is still 190.8MB. Free memory was 147.8MB in the beginning and 146.4MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-05-19 19:08:37,144 INFO L158 Benchmark]: Boogie Preprocessor took 21.27ms. Allocated memory is still 190.8MB. Free memory was 146.2MB in the beginning and 145.2MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-05-19 19:08:37,144 INFO L158 Benchmark]: RCFGBuilder took 243.29ms. Allocated memory is still 190.8MB. Free memory was 145.2MB in the beginning and 134.9MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-05-19 19:08:37,144 INFO L158 Benchmark]: TraceAbstraction took 15580.35ms. Allocated memory was 190.8MB in the beginning and 229.6MB in the end (delta: 38.8MB). Free memory was 133.7MB in the beginning and 133.2MB in the end (delta: 496.0kB). Peak memory consumption was 39.5MB. Max. memory is 8.0GB. [2023-05-19 19:08:37,146 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 0.13ms. Allocated memory is still 190.8MB. Free memory is still 149.0MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 24.93ms. Allocated memory is still 190.8MB. Free memory was 147.8MB in the beginning and 146.4MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 21.27ms. Allocated memory is still 190.8MB. Free memory was 146.2MB in the beginning and 145.2MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 243.29ms. Allocated memory is still 190.8MB. Free memory was 145.2MB in the beginning and 134.9MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 15580.35ms. Allocated memory was 190.8MB in the beginning and 229.6MB in the end (delta: 38.8MB). Free memory was 133.7MB in the beginning and 133.2MB in the end (delta: 496.0kB). Peak memory consumption was 39.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 949, independent: 644, independent conditional: 404, independent unconditional: 240, dependent: 305, dependent conditional: 303, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 653, independent: 644, independent conditional: 404, independent unconditional: 240, dependent: 9, dependent conditional: 7, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 653, independent: 644, independent conditional: 404, independent unconditional: 240, dependent: 9, dependent conditional: 7, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 677, independent: 644, independent conditional: 5, independent unconditional: 639, dependent: 33, dependent conditional: 19, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 677, independent: 644, independent conditional: 5, independent unconditional: 639, dependent: 33, dependent conditional: 14, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 677, independent: 644, independent conditional: 5, independent unconditional: 639, dependent: 33, dependent conditional: 14, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 201, independent: 190, independent conditional: 5, independent unconditional: 185, dependent: 11, dependent conditional: 9, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 201, independent: 182, independent conditional: 0, independent unconditional: 182, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 19, independent: 8, independent conditional: 5, independent unconditional: 3, dependent: 11, dependent conditional: 9, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 19, independent: 8, independent conditional: 5, independent unconditional: 3, dependent: 11, dependent conditional: 9, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 88, independent: 54, independent conditional: 15, independent unconditional: 39, dependent: 34, dependent conditional: 18, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 677, independent: 454, independent conditional: 0, independent unconditional: 454, dependent: 22, dependent conditional: 5, dependent unconditional: 17, unknown: 201, unknown conditional: 14, unknown unconditional: 187] , Statistics on independence cache: Total cache size (in pairs): 201, Positive cache size: 190, Positive conditional cache size: 5, Positive unconditional cache size: 185, Negative cache size: 11, Negative conditional cache size: 9, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 5, Maximal queried relation: 5, Independence queries for same thread: 296 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.1s, Number of persistent set computation: 55, Number of trivial persistent sets: 28, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 242, independent: 240, independent conditional: 0, independent unconditional: 240, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 949, independent: 644, independent conditional: 404, independent unconditional: 240, dependent: 305, dependent conditional: 303, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 653, independent: 644, independent conditional: 404, independent unconditional: 240, dependent: 9, dependent conditional: 7, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 653, independent: 644, independent conditional: 404, independent unconditional: 240, dependent: 9, dependent conditional: 7, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 677, independent: 644, independent conditional: 5, independent unconditional: 639, dependent: 33, dependent conditional: 19, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 677, independent: 644, independent conditional: 5, independent unconditional: 639, dependent: 33, dependent conditional: 14, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 677, independent: 644, independent conditional: 5, independent unconditional: 639, dependent: 33, dependent conditional: 14, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 201, independent: 190, independent conditional: 5, independent unconditional: 185, dependent: 11, dependent conditional: 9, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 201, independent: 182, independent conditional: 0, independent unconditional: 182, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 19, independent: 8, independent conditional: 5, independent unconditional: 3, dependent: 11, dependent conditional: 9, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 19, independent: 8, independent conditional: 5, independent unconditional: 3, dependent: 11, dependent conditional: 9, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 88, independent: 54, independent conditional: 15, independent unconditional: 39, dependent: 34, dependent conditional: 18, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 677, independent: 454, independent conditional: 0, independent unconditional: 454, dependent: 22, dependent conditional: 5, dependent unconditional: 17, unknown: 201, unknown conditional: 14, unknown unconditional: 187] , Statistics on independence cache: Total cache size (in pairs): 201, Positive cache size: 190, Positive conditional cache size: 5, Positive unconditional cache size: 185, Negative cache size: 11, Negative conditional cache size: 9, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 5, Maximal queried relation: 5, Independence queries for same thread: 296 - PositiveResult [Line: 62]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 36 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 15.4s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 7, EmptinessCheckTime: 3.7s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 110, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 9.5s InterpolantComputationTime, 490 NumberOfCodeBlocks, 490 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 650 ConstructedInterpolants, 10 QuantifiedInterpolants, 6098 SizeOfPredicates, 48 NumberOfNonLiveVariables, 700 ConjunctsInSsa, 144 ConjunctsInUnsatCore, 19 InterpolantComputations, 2 PerfectInterpolantSequences, 380/723 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-05-19 19:08:37,180 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2023-05-19 19:08:37,385 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...