/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_THREAD_INSTANCE --traceabstraction.maximal.amount.of.steps.the.threads.are.allowed.to.take.successively 1 --traceabstraction.enable.heuristic.with.loops.as.step.type false --traceabstraction.considered.threads.and.their.maximal.amount.of.steps X --traceabstraction.defines.what.statements.are.considered.a.step.in.por ALL_READ_WRITE -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-4.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.orders-218013a [2023-05-03 20:58:41,633 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2023-05-03 20:58:41,680 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2023-05-03 20:58:41,694 INFO L113 SettingsManager]: Loading preferences was successful [2023-05-03 20:58:41,694 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-05-03 20:58:41,694 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-05-03 20:58:41,695 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-05-03 20:58:41,695 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-05-03 20:58:41,695 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-05-03 20:58:41,695 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-05-03 20:58:41,696 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-05-03 20:58:41,696 INFO L138 SettingsManager]: * Use SBE=true [2023-05-03 20:58:41,696 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-05-03 20:58:41,696 INFO L138 SettingsManager]: * sizeof long=4 [2023-05-03 20:58:41,696 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-05-03 20:58:41,696 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-05-03 20:58:41,696 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-05-03 20:58:41,696 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-05-03 20:58:41,696 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-05-03 20:58:41,697 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-05-03 20:58:41,697 INFO L138 SettingsManager]: * sizeof long double=12 [2023-05-03 20:58:41,697 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-05-03 20:58:41,697 INFO L138 SettingsManager]: * Use constant arrays=true [2023-05-03 20:58:41,697 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-05-03 20:58:41,697 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-05-03 20:58:41,697 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-05-03 20:58:41,697 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-05-03 20:58:41,697 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-05-03 20:58:41,697 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-03 20:58:41,697 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-05-03 20:58:41,697 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-05-03 20:58:41,698 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-05-03 20:58:41,698 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-05-03 20:58:41,698 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-05-03 20:58:41,698 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-05-03 20:58:41,698 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-05-03 20:58:41,698 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-05-03 20:58:41,698 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-05-03 20:58:41,698 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-05-03 20:58:41,698 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_THREAD_INSTANCE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Maximal amount of steps the threads are allowed to take successively -> 1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Enable heuristic with loops as step type -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Considered threads and their maximal amount of steps -> X Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Defines what statements are considered a step in POR -> ALL_READ_WRITE [2023-05-03 20:58:41,893 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-05-03 20:58:41,914 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-05-03 20:58:41,916 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-05-03 20:58:41,917 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-05-03 20:58:41,918 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2023-05-03 20:58:41,919 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-4.wvr.bpl [2023-05-03 20:58:41,919 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-4.wvr.bpl' [2023-05-03 20:58:41,945 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-05-03 20:58:41,946 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-05-03 20:58:41,947 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-05-03 20:58:41,947 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-05-03 20:58:41,947 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-05-03 20:58:41,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 08:58:41" (1/1) ... [2023-05-03 20:58:41,961 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 08:58:41" (1/1) ... [2023-05-03 20:58:41,966 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-05-03 20:58:41,967 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-05-03 20:58:41,968 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-05-03 20:58:41,968 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-05-03 20:58:41,968 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-05-03 20:58:41,974 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 08:58:41" (1/1) ... [2023-05-03 20:58:41,974 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 08:58:41" (1/1) ... [2023-05-03 20:58:41,975 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 08:58:41" (1/1) ... [2023-05-03 20:58:41,976 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 08:58:41" (1/1) ... [2023-05-03 20:58:41,979 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 08:58:41" (1/1) ... [2023-05-03 20:58:41,982 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 08:58:41" (1/1) ... [2023-05-03 20:58:41,982 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 08:58:41" (1/1) ... [2023-05-03 20:58:41,983 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 08:58:41" (1/1) ... [2023-05-03 20:58:41,984 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-05-03 20:58:41,985 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-05-03 20:58:41,985 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-05-03 20:58:41,985 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-05-03 20:58:41,986 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 08:58:41" (1/1) ... [2023-05-03 20:58:41,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-03 20:58:41,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-03 20:58:42,006 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) [2023-05-03 20:58:42,025 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 [2023-05-03 20:58:42,036 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-05-03 20:58:42,037 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-05-03 20:58:42,037 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-05-03 20:58:42,037 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-05-03 20:58:42,037 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-05-03 20:58:42,037 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-05-03 20:58:42,037 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-05-03 20:58:42,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-05-03 20:58:42,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-05-03 20:58:42,038 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2023-05-03 20:58:42,073 INFO L235 CfgBuilder]: Building ICFG [2023-05-03 20:58:42,075 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-05-03 20:58:42,153 INFO L276 CfgBuilder]: Performing block encoding [2023-05-03 20:58:42,184 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-05-03 20:58:42,185 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-05-03 20:58:42,185 WARN L330 CfgBuilder]: Unexpected successor node of atomic block begin: thread1EXIT is neither atomic block end nor error location. [2023-05-03 20:58:42,185 WARN L330 CfgBuilder]: Unexpected successor node of atomic block begin: thread2EXIT is neither atomic block end nor error location. [2023-05-03 20:58:42,187 INFO L202 PluginConnector]: Adding new model unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 08:58:42 BoogieIcfgContainer [2023-05-03 20:58:42,187 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-05-03 20:58:42,189 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-05-03 20:58:42,189 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-05-03 20:58:42,197 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-05-03 20:58:42,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 08:58:41" (1/2) ... [2023-05-03 20:58:42,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@354394a7 and model type unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.05 08:58:42, skipping insertion in model container [2023-05-03 20:58:42,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 08:58:42" (2/2) ... [2023-05-03 20:58:42,223 INFO L112 eAbstractionObserver]: Analyzing ICFG unroll-4.wvr.bpl [2023-05-03 20:58:42,230 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-05-03 20:58:42,236 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-05-03 20:58:42,236 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-05-03 20:58:42,237 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-05-03 20:58:42,282 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-05-03 20:58:42,321 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-03 20:58:42,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-03 20:58:42,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-03 20:58:42,338 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) [2023-05-03 20:58:42,339 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 [2023-05-03 20:58:42,396 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-03 20:58:42,407 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-05-03 20:58:42,430 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;@1830f5cc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-03 20:58:42,431 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-05-03 20:58:42,527 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-03 20:58:42,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-03 20:58:42,531 INFO L85 PathProgramCache]: Analyzing trace with hash 842249075, now seen corresponding path program 1 times [2023-05-03 20:58:42,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-03 20:58:42,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305343741] [2023-05-03 20:58:42,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-03 20:58:42,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-03 20:58:42,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-03 20:58:42,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-03 20:58:42,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-03 20:58:42,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305343741] [2023-05-03 20:58:42,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305343741] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-03 20:58:42,697 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-03 20:58:42,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-05-03 20:58:42,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426912192] [2023-05-03 20:58:42,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-03 20:58:42,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-03 20:58:42,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-03 20:58:42,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-03 20:58:42,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-05-03 20:58:42,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-03 20:58:42,762 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-03 20:58:42,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 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) [2023-05-03 20:58:42,763 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-03 20:58:42,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-03 20:58:42,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-05-03 20:58:42,783 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-03 20:58:42,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-03 20:58:42,783 INFO L85 PathProgramCache]: Analyzing trace with hash 340649728, now seen corresponding path program 1 times [2023-05-03 20:58:42,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-03 20:58:42,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017380177] [2023-05-03 20:58:42,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-03 20:58:42,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-03 20:58:42,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-03 20:58:42,829 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-03 20:58:42,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-03 20:58:42,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017380177] [2023-05-03 20:58:42,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017380177] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-03 20:58:42,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-03 20:58:42,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-05-03 20:58:42,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938107815] [2023-05-03 20:58:42,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-03 20:58:42,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-05-03 20:58:42,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-03 20:58:42,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-05-03 20:58:42,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-05-03 20:58:42,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-03 20:58:42,833 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-03 20:58:42,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-03 20:58:42,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-03 20:58:42,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-03 20:58:42,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-03 20:58:42,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-03 20:58:42,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-05-03 20:58:42,876 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-03 20:58:42,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-03 20:58:42,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1853682080, now seen corresponding path program 1 times [2023-05-03 20:58:42,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-03 20:58:42,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913642604] [2023-05-03 20:58:42,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-03 20:58:42,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-03 20:58:42,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-03 20:58:42,924 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-03 20:58:42,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-03 20:58:42,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913642604] [2023-05-03 20:58:42,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913642604] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-03 20:58:42,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [702773283] [2023-05-03 20:58:42,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-03 20:58:42,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-03 20:58:42,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-03 20:58:42,927 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) [2023-05-03 20:58:42,949 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-05-03 20:58:42,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-03 20:58:42,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 3 conjunts are in the unsatisfiable core [2023-05-03 20:58:42,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-03 20:58:43,007 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-03 20:58:43,007 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-03 20:58:43,035 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-03 20:58:43,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [702773283] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-03 20:58:43,035 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-03 20:58:43,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-05-03 20:58:43,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605243149] [2023-05-03 20:58:43,036 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-03 20:58:43,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-05-03 20:58:43,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-03 20:58:43,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-05-03 20:58:43,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-05-03 20:58:43,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-03 20:58:43,037 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-03 20:58:43,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 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) [2023-05-03 20:58:43,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-03 20:58:43,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-03 20:58:43,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-03 20:58:43,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-03 20:58:43,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-03 20:58:43,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-03 20:58:43,088 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-05-03 20:58:43,286 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,SelfDestructingSolverStorable2 [2023-05-03 20:58:43,286 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-03 20:58:43,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-03 20:58:43,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1658007441, now seen corresponding path program 1 times [2023-05-03 20:58:43,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-03 20:58:43,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959623185] [2023-05-03 20:58:43,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-03 20:58:43,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-03 20:58:43,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-03 20:58:43,371 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-03 20:58:43,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-03 20:58:43,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959623185] [2023-05-03 20:58:43,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959623185] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-03 20:58:43,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1602886221] [2023-05-03 20:58:43,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-03 20:58:43,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-03 20:58:43,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-03 20:58:43,375 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) [2023-05-03 20:58:43,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-05-03 20:58:43,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-03 20:58:43,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 5 conjunts are in the unsatisfiable core [2023-05-03 20:58:43,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-03 20:58:43,418 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-03 20:58:43,418 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-03 20:58:43,437 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-03 20:58:43,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1602886221] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-03 20:58:43,438 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-03 20:58:43,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-05-03 20:58:43,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318733120] [2023-05-03 20:58:43,438 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-03 20:58:43,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-05-03 20:58:43,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-03 20:58:43,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-05-03 20:58:43,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-05-03 20:58:43,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-03 20:58:43,439 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-03 20:58:43,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 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) [2023-05-03 20:58:43,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-03 20:58:43,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-03 20:58:43,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-03 20:58:43,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-03 20:58:43,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-03 20:58:43,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-03 20:58:43,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-03 20:58:43,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-03 20:58:43,519 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-05-03 20:58:43,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-03 20:58:43,715 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-03 20:58:43,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-03 20:58:43,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1844186816, now seen corresponding path program 2 times [2023-05-03 20:58:43,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-03 20:58:43,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419248610] [2023-05-03 20:58:43,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-03 20:58:43,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-03 20:58:43,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-03 20:58:43,834 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-03 20:58:43,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-03 20:58:43,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419248610] [2023-05-03 20:58:43,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419248610] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-03 20:58:43,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1529519173] [2023-05-03 20:58:43,835 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-05-03 20:58:43,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-03 20:58:43,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-03 20:58:43,862 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) [2023-05-03 20:58:43,897 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-05-03 20:58:43,898 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-03 20:58:43,898 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-05-03 20:58:43,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 17 conjunts are in the unsatisfiable core [2023-05-03 20:58:43,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-03 20:58:44,045 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-03 20:58:44,046 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 7 new quantified variables, introduced 6 case distinctions, treesize of input 23 treesize of output 64 [2023-05-03 20:58:44,088 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-03 20:58:44,089 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-03 20:58:44,319 INFO L356 Elim1Store]: treesize reduction 20, result has 91.1 percent of original size [2023-05-03 20:58:44,319 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 14 new quantified variables, introduced 28 case distinctions, treesize of input 19 treesize of output 232 [2023-05-03 20:58:45,156 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-03 20:58:45,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1529519173] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-03 20:58:45,157 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-03 20:58:45,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 6] total 13 [2023-05-03 20:58:45,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674839124] [2023-05-03 20:58:45,157 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-03 20:58:45,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-05-03 20:58:45,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-03 20:58:45,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-05-03 20:58:45,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2023-05-03 20:58:45,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-03 20:58:45,159 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-03 20:58:45,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 13 states have internal predecessors, (27), 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) [2023-05-03 20:58:45,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-03 20:58:45,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-03 20:58:45,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-03 20:58:45,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-03 20:58:45,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-03 20:58:45,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-03 20:58:45,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-03 20:58:45,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-03 20:58:45,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-03 20:58:45,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-05-03 20:58:45,261 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-05-03 20:58:45,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-03 20:58:45,461 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-03 20:58:45,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-03 20:58:45,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1447263165, now seen corresponding path program 3 times [2023-05-03 20:58:45,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-03 20:58:45,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285231712] [2023-05-03 20:58:45,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-03 20:58:45,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-03 20:58:45,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-03 20:58:45,598 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 13 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-03 20:58:45,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-03 20:58:45,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285231712] [2023-05-03 20:58:45,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285231712] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-03 20:58:45,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1689278877] [2023-05-03 20:58:45,598 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-05-03 20:58:45,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-03 20:58:45,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-03 20:58:45,600 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) [2023-05-03 20:58:45,626 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-05-03 20:58:45,629 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-05-03 20:58:45,629 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-03 20:58:45,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 10 conjunts are in the unsatisfiable core [2023-05-03 20:58:45,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-03 20:58:45,653 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 14 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-03 20:58:45,653 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-03 20:58:45,734 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 14 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-03 20:58:45,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1689278877] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-03 20:58:45,734 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-03 20:58:45,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 18 [2023-05-03 20:58:45,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850232418] [2023-05-03 20:58:45,735 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-03 20:58:45,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-05-03 20:58:45,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-03 20:58:45,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-05-03 20:58:45,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2023-05-03 20:58:45,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-03 20:58:45,736 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-03 20:58:45,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 1.631578947368421) internal successors, (31), 18 states have internal predecessors, (31), 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) [2023-05-03 20:58:45,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-03 20:58:45,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-03 20:58:45,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-03 20:58:45,737 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-03 20:58:45,737 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-05-03 20:58:45,737 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-03 20:58:45,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-03 20:58:45,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-03 20:58:45,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-03 20:58:45,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-03 20:58:45,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-05-03 20:58:45,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-05-03 20:58:45,909 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-05-03 20:58:46,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-03 20:58:46,109 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-03 20:58:46,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-03 20:58:46,109 INFO L85 PathProgramCache]: Analyzing trace with hash 474447107, now seen corresponding path program 4 times [2023-05-03 20:58:46,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-03 20:58:46,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500390576] [2023-05-03 20:58:46,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-03 20:58:46,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-03 20:58:46,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-03 20:58:46,169 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-03 20:58:46,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-03 20:58:46,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500390576] [2023-05-03 20:58:46,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500390576] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-03 20:58:46,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1424373432] [2023-05-03 20:58:46,170 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-05-03 20:58:46,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-03 20:58:46,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-03 20:58:46,171 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) [2023-05-03 20:58:46,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-05-03 20:58:46,191 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-05-03 20:58:46,191 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-03 20:58:46,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 7 conjunts are in the unsatisfiable core [2023-05-03 20:58:46,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-03 20:58:46,224 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-03 20:58:46,224 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-03 20:58:46,259 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-03 20:58:46,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1424373432] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-03 20:58:46,259 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-03 20:58:46,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-05-03 20:58:46,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607889766] [2023-05-03 20:58:46,260 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-03 20:58:46,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-05-03 20:58:46,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-03 20:58:46,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-05-03 20:58:46,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-05-03 20:58:46,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-03 20:58:46,261 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-03 20:58:46,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.25) internal successors, (27), 11 states have internal predecessors, (27), 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) [2023-05-03 20:58:46,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-03 20:58:46,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-03 20:58:46,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-03 20:58:46,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-03 20:58:46,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-05-03 20:58:46,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-05-03 20:58:46,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-03 20:58:46,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-03 20:58:46,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-03 20:58:46,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-03 20:58:46,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-03 20:58:46,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-05-03 20:58:46,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-05-03 20:58:46,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-03 20:58:46,341 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-05-03 20:58:46,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-03 20:58:46,529 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-03 20:58:46,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-03 20:58:46,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1798605470, now seen corresponding path program 5 times [2023-05-03 20:58:46,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-03 20:58:46,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151649834] [2023-05-03 20:58:46,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-03 20:58:46,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-03 20:58:46,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-03 20:58:46,648 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-03 20:58:46,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-03 20:58:46,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151649834] [2023-05-03 20:58:46,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151649834] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-03 20:58:46,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [543741116] [2023-05-03 20:58:46,649 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-05-03 20:58:46,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-03 20:58:46,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-03 20:58:46,650 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) [2023-05-03 20:58:46,652 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-05-03 20:58:46,676 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2023-05-03 20:58:46,676 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-03 20:58:46,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 13 conjunts are in the unsatisfiable core [2023-05-03 20:58:46,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-03 20:58:46,762 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-03 20:58:46,762 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-03 20:58:46,840 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-03 20:58:46,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [543741116] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-03 20:58:46,841 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-03 20:58:46,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 6] total 19 [2023-05-03 20:58:46,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641825115] [2023-05-03 20:58:46,841 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-03 20:58:46,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-05-03 20:58:46,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-03 20:58:46,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-05-03 20:58:46,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2023-05-03 20:58:46,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-03 20:58:46,844 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-03 20:58:46,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 1.95) internal successors, (39), 19 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-03 20:58:46,844 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-03 20:58:46,844 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-03 20:58:46,844 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-03 20:58:46,844 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-03 20:58:46,844 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-05-03 20:58:46,844 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2023-05-03 20:58:46,844 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-03 20:58:46,844 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-03 20:58:47,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-03 20:58:47,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-03 20:58:47,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-03 20:58:47,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-03 20:58:47,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-05-03 20:58:47,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-05-03 20:58:47,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-03 20:58:47,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-05-03 20:58:47,288 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-05-03 20:58:47,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-03 20:58:47,460 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-03 20:58:47,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-03 20:58:47,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1361379937, now seen corresponding path program 6 times [2023-05-03 20:58:47,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-03 20:58:47,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630109471] [2023-05-03 20:58:47,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-03 20:58:47,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-03 20:58:47,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-03 20:58:47,551 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-05-03 20:58:47,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-03 20:58:47,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630109471] [2023-05-03 20:58:47,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630109471] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-03 20:58:47,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [378156345] [2023-05-03 20:58:47,552 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-05-03 20:58:47,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-03 20:58:47,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-03 20:58:47,557 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) [2023-05-03 20:58:47,607 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-05-03 20:58:47,630 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2023-05-03 20:58:47,630 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-03 20:58:47,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 27 conjunts are in the unsatisfiable core [2023-05-03 20:58:47,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-03 20:58:47,782 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-03 20:58:47,782 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 15 new quantified variables, introduced 28 case distinctions, treesize of input 39 treesize of output 252 [2023-05-03 20:58:48,364 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-03 20:58:48,364 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-03 20:58:49,463 INFO L356 Elim1Store]: treesize reduction 40, result has 95.8 percent of original size [2023-05-03 20:58:49,464 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 30 new quantified variables, introduced 120 case distinctions, treesize of input 35 treesize of output 980 [2023-05-03 20:59:12,402 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 1 proven. 37 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-03 20:59:12,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [378156345] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-03 20:59:12,403 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-03 20:59:12,403 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12, 11] total 23 [2023-05-03 20:59:12,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131077738] [2023-05-03 20:59:12,403 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-03 20:59:12,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-05-03 20:59:12,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-03 20:59:12,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-05-03 20:59:12,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=487, Unknown=0, NotChecked=0, Total=552 [2023-05-03 20:59:12,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-03 20:59:12,404 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-03 20:59:12,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 1.5833333333333333) internal successors, (38), 23 states have internal predecessors, (38), 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) [2023-05-03 20:59:12,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-03 20:59:12,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-03 20:59:12,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-03 20:59:12,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-03 20:59:12,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-05-03 20:59:12,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2023-05-03 20:59:12,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-03 20:59:12,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-05-03 20:59:12,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-03 20:59:12,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-03 20:59:12,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-03 20:59:12,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-03 20:59:12,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-03 20:59:12,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-05-03 20:59:12,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-05-03 20:59:12,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-03 20:59:12,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-05-03 20:59:12,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-05-03 20:59:12,664 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-05-03 20:59:12,846 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,SelfDestructingSolverStorable8 [2023-05-03 20:59:12,847 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-03 20:59:12,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-03 20:59:12,847 INFO L85 PathProgramCache]: Analyzing trace with hash 2138843809, now seen corresponding path program 7 times [2023-05-03 20:59:12,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-03 20:59:12,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119628186] [2023-05-03 20:59:12,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-03 20:59:12,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-03 20:59:12,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-03 20:59:13,015 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 40 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-03 20:59:13,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-03 20:59:13,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119628186] [2023-05-03 20:59:13,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119628186] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-03 20:59:13,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1953910589] [2023-05-03 20:59:13,016 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-05-03 20:59:13,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-03 20:59:13,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-03 20:59:13,025 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) [2023-05-03 20:59:13,026 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-05-03 20:59:13,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-03 20:59:13,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 13 conjunts are in the unsatisfiable core [2023-05-03 20:59:13,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-03 20:59:13,078 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 47 proven. 28 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-05-03 20:59:13,078 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-03 20:59:13,260 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 47 proven. 28 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-05-03 20:59:13,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1953910589] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-03 20:59:13,260 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-03 20:59:13,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13, 13] total 24 [2023-05-03 20:59:13,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552083842] [2023-05-03 20:59:13,261 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-03 20:59:13,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-05-03 20:59:13,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-03 20:59:13,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-05-03 20:59:13,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=433, Unknown=0, NotChecked=0, Total=600 [2023-05-03 20:59:13,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-03 20:59:13,262 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-03 20:59:13,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 1.52) internal successors, (38), 24 states have internal predecessors, (38), 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) [2023-05-03 20:59:13,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-03 20:59:13,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-03 20:59:13,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-03 20:59:13,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-03 20:59:13,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-05-03 20:59:13,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2023-05-03 20:59:13,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-03 20:59:13,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-05-03 20:59:13,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-05-03 20:59:13,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-03 20:59:13,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-03 20:59:13,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-03 20:59:13,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-03 20:59:13,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-03 20:59:13,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-05-03 20:59:13,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-05-03 20:59:13,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-03 20:59:13,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-05-03 20:59:13,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-05-03 20:59:13,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-05-03 20:59:13,541 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-05-03 20:59:13,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-05-03 20:59:13,723 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-03 20:59:13,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-03 20:59:13,724 INFO L85 PathProgramCache]: Analyzing trace with hash -35105052, now seen corresponding path program 8 times [2023-05-03 20:59:13,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-03 20:59:13,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855473652] [2023-05-03 20:59:13,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-03 20:59:13,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-03 20:59:13,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-03 20:59:13,820 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-03 20:59:13,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-03 20:59:13,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855473652] [2023-05-03 20:59:13,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855473652] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-03 20:59:13,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1025235241] [2023-05-03 20:59:13,822 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-05-03 20:59:13,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-03 20:59:13,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-03 20:59:13,823 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-03 20:59:13,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-05-03 20:59:13,850 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-05-03 20:59:13,850 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-03 20:59:13,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 13 conjunts are in the unsatisfiable core [2023-05-03 20:59:13,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-03 20:59:13,877 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 8 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-03 20:59:13,877 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-03 20:59:14,000 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 8 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-03 20:59:14,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1025235241] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-03 20:59:14,001 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-03 20:59:14,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 21 [2023-05-03 20:59:14,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269730393] [2023-05-03 20:59:14,001 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-03 20:59:14,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-05-03 20:59:14,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-03 20:59:14,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-05-03 20:59:14,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2023-05-03 20:59:14,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-03 20:59:14,002 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-03 20:59:14,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 1.5) internal successors, (33), 21 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-03 20:59:14,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-03 20:59:14,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-03 20:59:14,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-03 20:59:14,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-03 20:59:14,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-05-03 20:59:14,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2023-05-03 20:59:14,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-03 20:59:14,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-05-03 20:59:14,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-05-03 20:59:14,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2023-05-03 20:59:14,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-03 20:59:14,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-03 20:59:14,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-03 20:59:14,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-03 20:59:14,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-03 20:59:14,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-05-03 20:59:14,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-05-03 20:59:14,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-03 20:59:14,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-05-03 20:59:14,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-05-03 20:59:14,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-05-03 20:59:14,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-05-03 20:59:14,327 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-05-03 20:59:14,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-05-03 20:59:14,514 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-03 20:59:14,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-03 20:59:14,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1179941468, now seen corresponding path program 9 times [2023-05-03 20:59:14,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-03 20:59:14,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744454575] [2023-05-03 20:59:14,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-03 20:59:14,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-03 20:59:14,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-03 20:59:14,659 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-05-03 20:59:14,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-03 20:59:14,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744454575] [2023-05-03 20:59:14,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744454575] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-03 20:59:14,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1347501022] [2023-05-03 20:59:14,660 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-05-03 20:59:14,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-03 20:59:14,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-03 20:59:14,673 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-03 20:59:14,674 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-05-03 20:59:14,708 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-05-03 20:59:14,708 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-03 20:59:14,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 37 conjunts are in the unsatisfiable core [2023-05-03 20:59:14,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-03 20:59:15,298 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-03 20:59:15,298 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 23 new quantified variables, introduced 66 case distinctions, treesize of input 55 treesize of output 568 [2023-05-03 20:59:21,228 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-03 20:59:21,228 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-03 20:59:26,824 WARN L233 SmtUtils]: Spent 5.40s on a formula simplification. DAG size of input: 1153 DAG size of output: 1117 (called from [L 353] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-05-03 20:59:26,836 INFO L356 Elim1Store]: treesize reduction 60, result has 97.3 percent of original size [2023-05-03 20:59:26,837 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 24 select indices, 24 select index equivalence classes, 0 disjoint index pairs (out of 276 index pairs), introduced 46 new quantified variables, introduced 276 case distinctions, treesize of input 51 treesize of output 2240 [2023-05-03 21:03:30,645 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2023-05-03 21:03:30,668 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-05-03 21:03:30,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-05-03 21:03:30,863 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) [2023-05-03 21:03:30,866 INFO L158 Benchmark]: Toolchain (without parser) took 288920.53ms. Allocated memory was 198.2MB in the beginning and 1.0GB in the end (delta: 825.2MB). Free memory was 154.3MB in the beginning and 552.2MB in the end (delta: -397.9MB). Peak memory consumption was 615.0MB. Max. memory is 8.0GB. [2023-05-03 21:03:30,884 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.14ms. Allocated memory is still 198.2MB. Free memory is still 155.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-05-03 21:03:30,884 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.84ms. Allocated memory is still 198.2MB. Free memory was 154.2MB in the beginning and 152.7MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-05-03 21:03:30,885 INFO L158 Benchmark]: Boogie Preprocessor took 15.49ms. Allocated memory is still 198.2MB. Free memory was 152.7MB in the beginning and 151.7MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-05-03 21:03:30,885 INFO L158 Benchmark]: RCFGBuilder took 201.69ms. Allocated memory is still 198.2MB. Free memory was 151.6MB in the beginning and 140.5MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-05-03 21:03:30,885 INFO L158 Benchmark]: TraceAbstraction took 288676.79ms. Allocated memory was 198.2MB in the beginning and 1.0GB in the end (delta: 825.2MB). Free memory was 139.3MB in the beginning and 552.2MB in the end (delta: -412.9MB). Peak memory consumption was 600.4MB. Max. memory is 8.0GB. [2023-05-03 21:03:30,887 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 0.14ms. Allocated memory is still 198.2MB. Free memory is still 155.4MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 19.84ms. Allocated memory is still 198.2MB. Free memory was 154.2MB in the beginning and 152.7MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 15.49ms. Allocated memory is still 198.2MB. Free memory was 152.7MB in the beginning and 151.7MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 201.69ms. Allocated memory is still 198.2MB. Free memory was 151.6MB in the beginning and 140.5MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 288676.79ms. Allocated memory was 198.2MB in the beginning and 1.0GB in the end (delta: 825.2MB). Free memory was 139.3MB in the beginning and 552.2MB in the end (delta: -412.9MB). Peak memory consumption was 600.4MB. 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. [2023-05-03 21:03:30,909 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 [2023-05-03 21:03:31,119 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...