/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 '"3,2 1,1 2,2"' --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/parallel/misc-1.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.orders-32214ab [2023-05-19 13:45:18,700 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2023-05-19 13:45:18,783 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2023-05-19 13:45:18,795 INFO L113 SettingsManager]: Loading preferences was successful [2023-05-19 13:45:18,795 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-05-19 13:45:18,795 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-05-19 13:45:18,795 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-05-19 13:45:18,796 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-05-19 13:45:18,796 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-05-19 13:45:18,796 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-05-19 13:45:18,796 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-05-19 13:45:18,796 INFO L138 SettingsManager]: * Use SBE=true [2023-05-19 13:45:18,796 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-05-19 13:45:18,797 INFO L138 SettingsManager]: * sizeof long=4 [2023-05-19 13:45:18,797 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-05-19 13:45:18,797 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-05-19 13:45:18,797 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-05-19 13:45:18,797 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-05-19 13:45:18,797 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-05-19 13:45:18,797 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-05-19 13:45:18,797 INFO L138 SettingsManager]: * sizeof long double=12 [2023-05-19 13:45:18,797 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-05-19 13:45:18,797 INFO L138 SettingsManager]: * Use constant arrays=true [2023-05-19 13:45:18,797 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-05-19 13:45:18,797 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-05-19 13:45:18,798 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-05-19 13:45:18,798 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-05-19 13:45:18,798 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-05-19 13:45:18,798 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-19 13:45:18,798 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-05-19 13:45:18,798 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-05-19 13:45:18,798 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-05-19 13:45:18,798 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-05-19 13:45:18,798 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-05-19 13:45:18,798 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-05-19 13:45:18,798 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-05-19 13:45:18,798 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-05-19 13:45:18,799 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-05-19 13:45:18,799 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-05-19 13:45:18,799 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_THREAD_INSTANCE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Maximal amount of steps the threads are allowed to take successively -> 1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Enable heuristic with loops as step type -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Considered threads and their maximal amount of steps -> 3,2 1,1 2,2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Defines what statements are considered a step in POR -> GLOBAL_READ_WRITE [2023-05-19 13:45:18,976 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-05-19 13:45:18,999 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-05-19 13:45:19,001 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-05-19 13:45:19,002 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-05-19 13:45:19,003 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2023-05-19 13:45:19,003 INFO L432 ainManager$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 13:45:19,003 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 13:45:19,019 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-05-19 13:45:19,020 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-05-19 13:45:19,021 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-05-19 13:45:19,021 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-05-19 13:45:19,021 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-05-19 13:45:19,029 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 01:45:19" (1/1) ... [2023-05-19 13:45:19,034 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 01:45:19" (1/1) ... [2023-05-19 13:45:19,038 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-05-19 13:45:19,039 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-05-19 13:45:19,040 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-05-19 13:45:19,040 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-05-19 13:45:19,040 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-05-19 13:45:19,046 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 01:45:19" (1/1) ... [2023-05-19 13:45:19,046 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 01:45:19" (1/1) ... [2023-05-19 13:45:19,046 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 01:45:19" (1/1) ... [2023-05-19 13:45:19,047 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 01:45:19" (1/1) ... [2023-05-19 13:45:19,048 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 01:45:19" (1/1) ... [2023-05-19 13:45:19,050 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 01:45:19" (1/1) ... [2023-05-19 13:45:19,051 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 01:45:19" (1/1) ... [2023-05-19 13:45:19,051 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 01:45:19" (1/1) ... [2023-05-19 13:45:19,052 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-05-19 13:45:19,052 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-05-19 13:45:19,053 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-05-19 13:45:19,053 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-05-19 13:45:19,055 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 01:45:19" (1/1) ... [2023-05-19 13:45:19,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-19 13:45:19,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 13:45:19,101 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 13:45:19,124 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 13:45:19,148 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-05-19 13:45:19,149 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-05-19 13:45:19,149 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-05-19 13:45:19,149 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-05-19 13:45:19,149 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-05-19 13:45:19,149 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-05-19 13:45:19,149 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-05-19 13:45:19,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-05-19 13:45:19,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-05-19 13:45:19,151 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 13:45:19,186 INFO L235 CfgBuilder]: Building ICFG [2023-05-19 13:45:19,187 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-05-19 13:45:19,306 INFO L276 CfgBuilder]: Performing block encoding [2023-05-19 13:45:19,310 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-05-19 13:45:19,310 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2023-05-19 13:45:19,312 INFO L202 PluginConnector]: Adding new model misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.05 01:45:19 BoogieIcfgContainer [2023-05-19 13:45:19,312 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-05-19 13:45:19,313 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-05-19 13:45:19,313 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-05-19 13:45:19,331 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-05-19 13:45:19,331 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 01:45:19" (1/2) ... [2023-05-19 13:45:19,332 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a5acca and model type misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.05 01:45:19, skipping insertion in model container [2023-05-19 13:45:19,332 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 01:45:19" (2/2) ... [2023-05-19 13:45:19,333 INFO L112 eAbstractionObserver]: Analyzing ICFG misc-1.wvr.bpl [2023-05-19 13:45:19,338 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-05-19 13:45:19,343 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-05-19 13:45:19,343 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-05-19 13:45:19,343 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-05-19 13:45:19,393 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-05-19 13:45:19,436 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-19 13:45:19,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-19 13:45:19,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 13:45:19,440 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 13:45:19,444 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 13:45:19,483 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-19 13:45:19,498 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-05-19 13:45:19,543 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;@88f6fc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-19 13:45:19,544 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-05-19 13:45:19,680 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 13:45:19,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 13:45:19,683 INFO L85 PathProgramCache]: Analyzing trace with hash -360813010, now seen corresponding path program 1 times [2023-05-19 13:45:19,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 13:45:19,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783271010] [2023-05-19 13:45:19,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 13:45:19,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 13:45:19,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 13:45:20,000 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 12 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 13:45:20,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 13:45:20,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783271010] [2023-05-19 13:45:20,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783271010] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-19 13:45:20,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1098650618] [2023-05-19 13:45:20,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 13:45:20,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 13:45:20,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 13:45:20,003 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 13:45:20,009 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 13:45:20,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 13:45:20,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 6 conjunts are in the unsatisfiable core [2023-05-19 13:45:20,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-19 13:45:20,153 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 16 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-05-19 13:45:20,154 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-19 13:45:20,222 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 16 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-05-19 13:45:20,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1098650618] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-19 13:45:20,223 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-19 13:45:20,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 9 [2023-05-19 13:45:20,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066630064] [2023-05-19 13:45:20,225 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-19 13:45:20,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-05-19 13:45:20,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 13:45:20,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-05-19 13:45:20,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-05-19 13:45:20,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 13:45:20,242 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 13:45:20,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 9 states have internal predecessors, (57), 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 13:45:20,243 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 13:45:20,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-05-19 13:45:20,430 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-05-19 13:45:20,631 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 13:45:20,631 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 13:45:20,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 13:45:20,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1133764320, now seen corresponding path program 1 times [2023-05-19 13:45:20,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 13:45:20,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062287231] [2023-05-19 13:45:20,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 13:45:20,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 13:45:20,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 13:45:21,604 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 13:45:21,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 13:45:21,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062287231] [2023-05-19 13:45:21,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062287231] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-19 13:45:21,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [240212197] [2023-05-19 13:45:21,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 13:45:21,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 13:45:21,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 13:45:21,617 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 13:45:21,621 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 13:45:21,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 13:45:21,651 WARN L261 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 43 conjunts are in the unsatisfiable core [2023-05-19 13:45:21,653 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-19 13:45:22,321 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2023-05-19 13:45:22,379 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 13:45:22,379 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-19 13:45:22,948 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-19 13:45:22,948 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 33 treesize of output 98 [2023-05-19 13:45:23,128 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 13:45:23,129 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 13:45:23,129 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 13:45:23,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 13:45:23,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 13:45:23,132 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 7 [2023-05-19 13:45:23,193 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 13:45:23,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [240212197] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-19 13:45:23,195 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-19 13:45:23,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 17, 17] total 49 [2023-05-19 13:45:23,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103008377] [2023-05-19 13:45:23,195 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-19 13:45:23,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-05-19 13:45:23,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 13:45:23,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-05-19 13:45:23,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=2252, Unknown=0, NotChecked=0, Total=2450 [2023-05-19 13:45:23,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 13:45:23,200 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 13:45:23,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 2.12) internal successors, (106), 49 states have internal predecessors, (106), 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 13:45:23,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-05-19 13:45:23,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 13:45:24,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-05-19 13:45:24,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-05-19 13:45:24,654 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 13:45:24,840 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 13:45:24,840 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 13:45:24,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 13:45:24,841 INFO L85 PathProgramCache]: Analyzing trace with hash 329855070, now seen corresponding path program 2 times [2023-05-19 13:45:24,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 13:45:24,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851444040] [2023-05-19 13:45:24,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 13:45:24,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 13:45:24,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 13:45:24,962 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 14 proven. 60 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-05-19 13:45:24,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 13:45:24,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851444040] [2023-05-19 13:45:24,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851444040] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-19 13:45:24,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1713373374] [2023-05-19 13:45:24,967 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-05-19 13:45:24,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 13:45:24,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 13:45:24,987 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 13:45:25,020 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-05-19 13:45:25,020 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-19 13:45:25,021 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 13:45:25,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 12 conjunts are in the unsatisfiable core [2023-05-19 13:45:25,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-19 13:45:25,073 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 28 proven. 44 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-05-19 13:45:25,073 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-19 13:45:25,162 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 28 proven. 44 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-05-19 13:45:25,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1713373374] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-19 13:45:25,163 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-19 13:45:25,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 8 [2023-05-19 13:45:25,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177957500] [2023-05-19 13:45:25,163 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-19 13:45:25,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-05-19 13:45:25,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 13:45:25,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-05-19 13:45:25,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-05-19 13:45:25,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 13:45:25,165 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 13:45:25,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 8 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 13:45:25,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-05-19 13:45:25,166 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2023-05-19 13:45:25,166 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 13:45:25,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-05-19 13:45:25,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-05-19 13:45:25,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-05-19 13:45:25,309 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 13:45:25,506 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 13:45:25,506 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 13:45:25,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 13:45:25,507 INFO L85 PathProgramCache]: Analyzing trace with hash 909371002, now seen corresponding path program 3 times [2023-05-19 13:45:25,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 13:45:25,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236441106] [2023-05-19 13:45:25,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 13:45:25,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 13:45:25,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 13:45:26,717 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 4 proven. 94 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-05-19 13:45:26,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 13:45:26,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236441106] [2023-05-19 13:45:26,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236441106] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-19 13:45:26,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1486672088] [2023-05-19 13:45:26,719 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-05-19 13:45:26,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 13:45:26,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 13:45:26,729 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 13:45:26,730 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 13:45:26,763 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-05-19 13:45:26,764 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-19 13:45:26,764 WARN L261 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 66 conjunts are in the unsatisfiable core [2023-05-19 13:45:26,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-19 13:45:28,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 13:45:28,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 13:45:28,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 13:45:28,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 13:45:28,243 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 33 [2023-05-19 13:45:28,361 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 13:45:28,361 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-19 13:45:29,843 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 13:45:29,843 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 13:45:29,844 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 13:45:29,845 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 13:45:29,850 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 13:45:29,851 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 13:45:29,853 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 13:45:29,855 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 13:45:29,855 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 13:45:29,856 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 13:45:29,911 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-19 13:45:29,911 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 15 case distinctions, treesize of input 53 treesize of output 158 [2023-05-19 13:45:30,013 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 13:45:30,013 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 13:45:30,014 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 13:45:30,014 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 13:45:30,014 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 13:45:30,015 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 13:45:30,015 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 13:45:30,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 13:45:30,017 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 13:45:30,017 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 13:45:30,017 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 13:45:30,018 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 13:45:30,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 13:45:30,019 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 13:45:30,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 13:45:30,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 13:45:30,022 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 10 disjoint index pairs (out of 45 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 7 [2023-05-19 13:45:30,114 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 13:45:30,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1486672088] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-19 13:45:30,114 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-19 13:45:30,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 30, 30] total 77 [2023-05-19 13:45:30,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363266358] [2023-05-19 13:45:30,114 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-19 13:45:30,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 78 states [2023-05-19 13:45:30,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 13:45:30,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2023-05-19 13:45:30,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=593, Invalid=5413, Unknown=0, NotChecked=0, Total=6006 [2023-05-19 13:45:30,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 13:45:30,121 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 13:45:30,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 78 states, 78 states have (on average 1.8846153846153846) internal successors, (147), 77 states have internal predecessors, (147), 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 13:45:30,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-05-19 13:45:30,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2023-05-19 13:45:30,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-05-19 13:45:30,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 13:45:36,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-05-19 13:45:36,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-05-19 13:45:36,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-05-19 13:45:36,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2023-05-19 13:45:36,973 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 13:45:37,159 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 13:45:37,159 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 13:45:37,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 13:45:37,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1537469154, now seen corresponding path program 4 times [2023-05-19 13:45:37,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 13:45:37,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689357208] [2023-05-19 13:45:37,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 13:45:37,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 13:45:37,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 13:45:37,377 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 105 proven. 183 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-05-19 13:45:37,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 13:45:37,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689357208] [2023-05-19 13:45:37,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689357208] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-19 13:45:37,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [148513673] [2023-05-19 13:45:37,380 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-05-19 13:45:37,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 13:45:37,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 13:45:37,396 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 13:45:37,399 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 13:45:37,434 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-05-19 13:45:37,434 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-19 13:45:37,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 20 conjunts are in the unsatisfiable core [2023-05-19 13:45:37,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-19 13:45:37,497 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 139 proven. 147 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-05-19 13:45:37,497 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-19 13:45:37,602 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 139 proven. 147 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-05-19 13:45:37,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [148513673] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-19 13:45:37,602 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-19 13:45:37,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 12 [2023-05-19 13:45:37,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648160174] [2023-05-19 13:45:37,602 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-19 13:45:37,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-05-19 13:45:37,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 13:45:37,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-05-19 13:45:37,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2023-05-19 13:45:37,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 13:45:37,603 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 13:45:37,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 12 states have internal predecessors, (84), 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 13:45:37,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-05-19 13:45:37,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2023-05-19 13:45:37,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-05-19 13:45:37,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2023-05-19 13:45:37,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 13:45:37,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-05-19 13:45:37,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-05-19 13:45:37,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-05-19 13:45:37,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2023-05-19 13:45:37,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-05-19 13:45:37,779 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 13:45:37,947 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 13:45:37,947 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 13:45:37,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 13:45:37,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1655572038, now seen corresponding path program 5 times [2023-05-19 13:45:37,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 13:45:37,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517374179] [2023-05-19 13:45:37,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 13:45:37,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 13:45:37,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 13:45:40,112 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 71 proven. 265 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-05-19 13:45:40,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 13:45:40,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517374179] [2023-05-19 13:45:40,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517374179] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-19 13:45:40,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1063773873] [2023-05-19 13:45:40,112 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-05-19 13:45:40,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 13:45:40,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 13:45:40,113 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 13:45:40,144 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 13:45:40,162 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2023-05-19 13:45:40,163 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-19 13:45:40,164 WARN L261 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 103 conjunts are in the unsatisfiable core [2023-05-19 13:45:40,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-19 13:45:43,240 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 27 [2023-05-19 13:45:43,308 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 342 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 13:45:43,308 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-19 13:45:48,072 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-19 13:45:48,073 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 0 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 153 case distinctions, treesize of input 93 treesize of output 818 [2023-05-19 13:46:06,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 13:46:06,421 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 13:46:06,421 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 13:46:06,421 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 13:46:06,422 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 13:46:06,422 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 13:46:06,422 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 13:46:06,423 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 13:46:06,423 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 13:46:06,423 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 13:46:06,424 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 13:46:06,424 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 13:46:06,424 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 13:46:06,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 13:46:06,425 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 13:46:06,425 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 13:46:06,426 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 13:46:06,426 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 13:46:06,426 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 13:46:06,426 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 13:46:06,427 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 13:46:06,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 13:46:06,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 13:46:06,428 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 13:46:06,428 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 13:46:06,429 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 13:46:06,429 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 13:46:06,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 13:46:06,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 13:46:06,430 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-19 13:46:06,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 13:46:06,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-19 13:46:06,432 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 36 disjoint index pairs (out of 153 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 7 [2023-05-19 13:46:06,541 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 342 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 13:46:06,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1063773873] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-19 13:46:06,542 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-19 13:46:06,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 47, 47] total 133 [2023-05-19 13:46:06,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008242762] [2023-05-19 13:46:06,542 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-19 13:46:06,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 134 states [2023-05-19 13:46:06,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 13:46:06,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 134 interpolants. [2023-05-19 13:46:06,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=778, Invalid=17044, Unknown=0, NotChecked=0, Total=17822 [2023-05-19 13:46:06,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 13:46:06,546 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 13:46:06,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 134 states, 134 states have (on average 1.962686567164179) internal successors, (263), 133 states have internal predecessors, (263), 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 13:46:06,546 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-05-19 13:46:06,546 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2023-05-19 13:46:06,546 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-05-19 13:46:06,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2023-05-19 13:46:06,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-05-19 13:46:06,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 13:46:24,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-05-19 13:46:24,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-05-19 13:46:24,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-05-19 13:46:24,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2023-05-19 13:46:24,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-05-19 13:46:24,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2023-05-19 13:46:24,605 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 13:46:24,789 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 13:46:24,790 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 13:46:24,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 13:46:24,790 INFO L85 PathProgramCache]: Analyzing trace with hash -960534050, now seen corresponding path program 6 times [2023-05-19 13:46:24,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 13:46:24,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675751827] [2023-05-19 13:46:24,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 13:46:24,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 13:46:24,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 13:46:25,036 INFO L134 CoverageAnalysis]: Checked inductivity of 667 backedges. 280 proven. 366 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-05-19 13:46:25,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 13:46:25,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675751827] [2023-05-19 13:46:25,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675751827] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-19 13:46:25,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [400236678] [2023-05-19 13:46:25,037 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-05-19 13:46:25,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 13:46:25,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 13:46:25,049 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 13:46:25,127 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 13:46:25,173 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2023-05-19 13:46:25,173 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-19 13:46:25,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 28 conjunts are in the unsatisfiable core [2023-05-19 13:46:25,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-19 13:46:25,322 INFO L134 CoverageAnalysis]: Checked inductivity of 667 backedges. 334 proven. 310 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-05-19 13:46:25,323 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-19 13:46:25,544 INFO L134 CoverageAnalysis]: Checked inductivity of 667 backedges. 334 proven. 310 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-05-19 13:46:25,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [400236678] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-19 13:46:25,544 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-19 13:46:25,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 15] total 16 [2023-05-19 13:46:25,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888656341] [2023-05-19 13:46:25,544 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-19 13:46:25,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-05-19 13:46:25,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-19 13:46:25,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-05-19 13:46:25,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2023-05-19 13:46:25,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-19 13:46:25,545 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-19 13:46:25,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 6.588235294117647) internal successors, (112), 16 states have internal predecessors, (112), 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 13:46:25,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-05-19 13:46:25,546 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2023-05-19 13:46:25,546 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-05-19 13:46:25,546 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2023-05-19 13:46:25,546 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-05-19 13:46:25,546 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 105 states. [2023-05-19 13:46:25,546 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-19 13:46:25,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-05-19 13:46:25,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-05-19 13:46:25,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-05-19 13:46:25,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2023-05-19 13:46:25,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-05-19 13:46:25,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2023-05-19 13:46:25,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-05-19 13:46:25,819 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 13:46:26,005 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 13:46:26,006 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 13:46:26,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-19 13:46:26,006 INFO L85 PathProgramCache]: Analyzing trace with hash 528850170, now seen corresponding path program 7 times [2023-05-19 13:46:26,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-19 13:46:26,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292997340] [2023-05-19 13:46:26,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-19 13:46:26,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-19 13:46:26,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 13:46:29,785 INFO L134 CoverageAnalysis]: Checked inductivity of 728 backedges. 114 proven. 605 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-05-19 13:46:29,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-19 13:46:29,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292997340] [2023-05-19 13:46:29,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292997340] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-19 13:46:29,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1871907566] [2023-05-19 13:46:29,785 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-05-19 13:46:29,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-19 13:46:29,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-19 13:46:29,787 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 13:46:29,788 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 13:46:29,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-19 13:46:29,829 WARN L261 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 143 conjunts are in the unsatisfiable core [2023-05-19 13:46:29,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-19 13:46:36,372 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 13 select indices, 13 select index equivalence classes, 78 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 35 [2023-05-19 13:46:36,478 INFO L134 CoverageAnalysis]: Checked inductivity of 728 backedges. 0 proven. 728 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-19 13:46:36,478 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-19 13:46:49,618 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-19 13:46:49,619 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 26 select indices, 26 select index equivalence classes, 0 disjoint index pairs (out of 325 index pairs), introduced 26 new quantified variables, introduced 325 case distinctions, treesize of input 133 treesize of output 1698 [2023-05-19 13:47:46,934 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2023-05-19 13:47:46,951 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 13:47:47,149 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 13:47:47,161 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 13:47:47,163 INFO L158 Benchmark]: Toolchain (without parser) took 148142.30ms. Allocated memory was 181.4MB in the beginning and 1.1GB in the end (delta: 928.0MB). Free memory was 140.7MB in the beginning and 423.0MB in the end (delta: -282.4MB). Peak memory consumption was 683.6MB. Max. memory is 8.0GB. [2023-05-19 13:47:47,163 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.11ms. Allocated memory is still 181.4MB. Free memory is still 141.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-05-19 13:47:47,164 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.33ms. Allocated memory is still 181.4MB. Free memory was 140.7MB in the beginning and 139.1MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-05-19 13:47:47,164 INFO L158 Benchmark]: Boogie Preprocessor took 11.96ms. Allocated memory is still 181.4MB. Free memory was 139.1MB in the beginning and 138.0MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-05-19 13:47:47,164 INFO L158 Benchmark]: RCFGBuilder took 259.30ms. Allocated memory is still 181.4MB. Free memory was 138.0MB in the beginning and 128.6MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-05-19 13:47:47,165 INFO L158 Benchmark]: TraceAbstraction took 147848.90ms. Allocated memory was 181.4MB in the beginning and 1.1GB in the end (delta: 928.0MB). Free memory was 127.4MB in the beginning and 423.0MB in the end (delta: -295.6MB). Peak memory consumption was 671.0MB. Max. memory is 8.0GB. [2023-05-19 13:47:47,165 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 0.11ms. Allocated memory is still 181.4MB. Free memory is still 141.9MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 18.33ms. Allocated memory is still 181.4MB. Free memory was 140.7MB in the beginning and 139.1MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 11.96ms. Allocated memory is still 181.4MB. Free memory was 139.1MB in the beginning and 138.0MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 259.30ms. Allocated memory is still 181.4MB. Free memory was 138.0MB in the beginning and 128.6MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 147848.90ms. Allocated memory was 181.4MB in the beginning and 1.1GB in the end (delta: 928.0MB). Free memory was 127.4MB in the beginning and 423.0MB in the end (delta: -295.6MB). Peak memory consumption was 671.0MB. 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 13:47:47,193 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 13:47:47,427 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 0 Received shutdown request...