/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/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithoutDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/array-sum.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-04 11:51:00,371 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-04 11:51:00,372 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-04 11:51:00,411 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-04 11:51:00,412 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-04 11:51:00,413 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-04 11:51:00,414 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-04 11:51:00,423 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-04 11:51:00,425 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-04 11:51:00,430 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-04 11:51:00,430 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-04 11:51:00,432 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-04 11:51:00,432 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-04 11:51:00,434 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-04 11:51:00,435 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-04 11:51:00,437 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-04 11:51:00,438 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-04 11:51:00,439 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-04 11:51:00,442 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-04 11:51:00,447 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-04 11:51:00,449 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-04 11:51:00,450 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-04 11:51:00,451 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-04 11:51:00,452 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-04 11:51:00,458 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-04 11:51:00,464 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-04 11:51:00,464 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-04 11:51:00,465 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-04 11:51:00,469 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithoutDepranks-Lazy.epf [2022-03-04 11:51:00,505 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-04 11:51:00,506 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-04 11:51:00,506 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-04 11:51:00,506 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-04 11:51:00,507 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-04 11:51:00,507 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-04 11:51:00,508 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-04 11:51:00,508 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-04 11:51:00,508 INFO L138 SettingsManager]: * Use SBE=true [2022-03-04 11:51:00,508 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-04 11:51:00,509 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-04 11:51:00,509 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-04 11:51:00,509 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-04 11:51:00,510 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-04 11:51:00,510 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-04 11:51:00,510 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-04 11:51:00,510 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-04 11:51:00,510 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-04 11:51:00,510 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-04 11:51:00,510 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-04 11:51:00,510 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-04 11:51:00,511 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-04 11:51:00,511 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-04 11:51:00,511 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-04 11:51:00,512 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-04 11:51:00,512 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 11:51:00,512 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-04 11:51:00,512 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-04 11:51:00,512 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-04 11:51:00,513 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-04 11:51:00,513 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-04 11:51:00,513 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-04 11:51:00,513 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-04 11:51:00,513 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-04 11:51:00,513 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-04 11:51:00,513 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-03-04 11:51:00,514 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-04 11:51:00,735 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-04 11:51:00,752 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-04 11:51:00,754 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-04 11:51:00,755 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-04 11:51:00,757 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-04 11:51:00,758 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/array-sum.wvr.bpl [2022-03-04 11:51:00,758 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/array-sum.wvr.bpl' [2022-03-04 11:51:00,784 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-04 11:51:00,791 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-04 11:51:00,793 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-04 11:51:00,793 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-04 11:51:00,793 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-04 11:51:00,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:51:00" (1/1) ... [2022-03-04 11:51:00,810 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:51:00" (1/1) ... [2022-03-04 11:51:00,818 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-04 11:51:00,820 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-04 11:51:00,821 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-04 11:51:00,821 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-04 11:51:00,821 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-04 11:51:00,828 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:51:00" (1/1) ... [2022-03-04 11:51:00,828 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:51:00" (1/1) ... [2022-03-04 11:51:00,830 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:51:00" (1/1) ... [2022-03-04 11:51:00,832 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:51:00" (1/1) ... [2022-03-04 11:51:00,836 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:51:00" (1/1) ... [2022-03-04 11:51:00,840 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:51:00" (1/1) ... [2022-03-04 11:51:00,841 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:51:00" (1/1) ... [2022-03-04 11:51:00,846 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-04 11:51:00,847 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-04 11:51:00,848 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-04 11:51:00,848 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-04 11:51:00,849 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:51:00" (1/1) ... [2022-03-04 11:51:00,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 11:51:00,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:51:00,881 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) [2022-03-04 11:51:00,894 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 [2022-03-04 11:51:00,918 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-04 11:51:00,919 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-04 11:51:00,919 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-04 11:51:00,919 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-04 11:51:00,919 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-04 11:51:00,919 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-04 11:51:00,919 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-04 11:51:00,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-04 11:51:00,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-04 11:51:00,920 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-04 11:51:00,920 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-04 11:51:00,920 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-04 11:51:00,920 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-04 11:51:00,964 INFO L234 CfgBuilder]: Building ICFG [2022-03-04 11:51:00,965 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-04 11:51:01,035 INFO L275 CfgBuilder]: Performing block encoding [2022-03-04 11:51:01,042 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-04 11:51:01,042 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-04 11:51:01,044 INFO L202 PluginConnector]: Adding new model array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 11:51:01 BoogieIcfgContainer [2022-03-04 11:51:01,044 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-04 11:51:01,045 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-04 11:51:01,045 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-04 11:51:01,048 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-04 11:51:01,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:51:00" (1/2) ... [2022-03-04 11:51:01,049 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@819afad and model type array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 11:51:01, skipping insertion in model container [2022-03-04 11:51:01,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 11:51:01" (2/2) ... [2022-03-04 11:51:01,050 INFO L111 eAbstractionObserver]: Analyzing ICFG array-sum.wvr.bpl [2022-03-04 11:51:01,055 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-04 11:51:01,055 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-04 11:51:01,055 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-04 11:51:01,055 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-04 11:51:01,087 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-03-04 11:51:01,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-04 11:51:01,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:51:01,195 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) [2022-03-04 11:51:01,203 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 [2022-03-04 11:51:01,226 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-04 11:51:01,234 INFO L339 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, mLazyFiniteAutomaton=true, 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, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-04 11:51:01,234 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-04 11:51:01,896 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1095 transitions and produced 1015 states. [2022-03-04 11:51:01,899 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 11:51:01,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 11:51:01,908 INFO L85 PathProgramCache]: Analyzing trace with hash 229179884, now seen corresponding path program 1 times [2022-03-04 11:51:01,916 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 11:51:01,917 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817939630] [2022-03-04 11:51:01,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 11:51:01,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 11:51:02,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 11:51:04,964 INFO L134 CoverageAnalysis]: Checked inductivity of 10172 backedges. 5584 proven. 4549 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-04 11:51:04,965 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 11:51:04,965 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817939630] [2022-03-04 11:51:04,966 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817939630] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 11:51:04,966 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1370744984] [2022-03-04 11:51:04,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 11:51:04,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:51:04,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:51:04,971 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) [2022-03-04 11:51:04,977 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-04 11:51:05,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 11:51:05,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 96 conjunts are in the unsatisfiable core [2022-03-04 11:51:05,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 11:51:10,008 INFO L134 CoverageAnalysis]: Checked inductivity of 10172 backedges. 4697 proven. 5424 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-03-04 11:51:10,009 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 11:51:14,899 INFO L134 CoverageAnalysis]: Checked inductivity of 10172 backedges. 5727 proven. 4415 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-03-04 11:51:14,899 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1370744984] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 11:51:14,899 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 11:51:14,900 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [74, 73, 87] total 211 [2022-03-04 11:51:14,901 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770885770] [2022-03-04 11:51:14,902 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 11:51:14,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 211 states [2022-03-04 11:51:14,911 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 11:51:14,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 211 interpolants. [2022-03-04 11:51:14,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13237, Invalid=31073, Unknown=0, NotChecked=0, Total=44310 [2022-03-04 11:51:14,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:51:14,954 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 11:51:14,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 211 states, 211 states have (on average 3.3981042654028437) internal successors, (717), 211 states have internal predecessors, (717), 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) [2022-03-04 11:51:14,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:51:28,749 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2251 transitions and produced 2143 states. [2022-03-04 11:51:28,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 291 states. [2022-03-04 11:51:28,770 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-03-04 11:51:28,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-03-04 11:51:28,956 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 11:51:28,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 11:51:28,957 INFO L85 PathProgramCache]: Analyzing trace with hash -613722119, now seen corresponding path program 2 times [2022-03-04 11:51:28,957 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 11:51:28,957 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370000510] [2022-03-04 11:51:28,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 11:51:28,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 11:51:29,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 11:51:37,639 INFO L134 CoverageAnalysis]: Checked inductivity of 27544 backedges. 15859 proven. 11658 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-04 11:51:37,639 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 11:51:37,639 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370000510] [2022-03-04 11:51:37,639 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370000510] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 11:51:37,639 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [448154782] [2022-03-04 11:51:37,640 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-04 11:51:37,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:51:37,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:51:37,641 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) [2022-03-04 11:51:37,642 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-04 11:51:37,827 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-04 11:51:37,827 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 11:51:37,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 996 conjuncts, 194 conjunts are in the unsatisfiable core [2022-03-04 11:51:37,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 11:51:50,556 INFO L134 CoverageAnalysis]: Checked inductivity of 27544 backedges. 12865 proven. 14655 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-04 11:51:50,557 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 11:52:08,830 INFO L134 CoverageAnalysis]: Checked inductivity of 27544 backedges. 10397 proven. 17144 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-04 11:52:08,830 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [448154782] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 11:52:08,830 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 11:52:08,831 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [177, 179, 193] total 455 [2022-03-04 11:52:08,831 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277814313] [2022-03-04 11:52:08,831 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 11:52:08,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 455 states [2022-03-04 11:52:08,833 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 11:52:08,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 455 interpolants. [2022-03-04 11:52:08,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44650, Invalid=161920, Unknown=0, NotChecked=0, Total=206570 [2022-03-04 11:52:08,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:52:08,863 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 11:52:08,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 455 states, 455 states have (on average 3.142857142857143) internal successors, (1430), 455 states have internal predecessors, (1430), 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) [2022-03-04 11:52:08,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 291 states. [2022-03-04 11:52:08,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:52:59,823 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3610 transitions and produced 3447 states. [2022-03-04 11:52:59,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 291 states. [2022-03-04 11:52:59,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 554 states. [2022-03-04 11:52:59,851 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-04 11:53:00,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:53:00,042 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 11:53:00,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 11:53:00,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1412620066, now seen corresponding path program 3 times [2022-03-04 11:53:00,043 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 11:53:00,043 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139625543] [2022-03-04 11:53:00,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 11:53:00,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 11:53:01,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 11:53:24,897 INFO L134 CoverageAnalysis]: Checked inductivity of 75517 backedges. 32994 proven. 42496 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-04 11:53:24,897 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 11:53:24,898 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139625543] [2022-03-04 11:53:24,898 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139625543] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 11:53:24,898 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [654036896] [2022-03-04 11:53:24,898 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-04 11:53:24,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:53:24,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:53:24,900 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) [2022-03-04 11:53:24,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-04 11:53:29,504 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 168 check-sat command(s) [2022-03-04 11:53:29,505 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 11:53:29,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 1671 conjuncts, 329 conjunts are in the unsatisfiable core [2022-03-04 11:53:29,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 11:53:58,349 INFO L134 CoverageAnalysis]: Checked inductivity of 75517 backedges. 28482 proven. 47011 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-04 11:53:58,350 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 11:54:27,995 INFO L134 CoverageAnalysis]: Checked inductivity of 75517 backedges. 23208 proven. 52306 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-04 11:54:27,996 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [654036896] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 11:54:27,996 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 11:54:27,997 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [312, 314, 328] total 628 [2022-03-04 11:54:27,997 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792341073] [2022-03-04 11:54:27,997 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 11:54:27,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 628 states [2022-03-04 11:54:28,000 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 11:54:28,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 628 interpolants. [2022-03-04 11:54:28,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74891, Invalid=318865, Unknown=0, NotChecked=0, Total=393756 [2022-03-04 11:54:28,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:54:28,035 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 11:54:28,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 628 states, 628 states have (on average 3.111464968152866) internal successors, (1954), 628 states have internal predecessors, (1954), 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) [2022-03-04 11:54:28,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 291 states. [2022-03-04 11:54:28,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 554 states. [2022-03-04 11:54:28,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:56:27,846 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 4411 transitions and produced 4238 states. [2022-03-04 11:56:27,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 291 states. [2022-03-04 11:56:27,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 554 states. [2022-03-04 11:56:27,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 760 states. [2022-03-04 11:56:27,867 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-03-04 11:56:28,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:56:28,048 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 11:56:28,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 11:56:28,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1742982809, now seen corresponding path program 4 times [2022-03-04 11:56:28,048 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 11:56:28,049 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347336763] [2022-03-04 11:56:28,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 11:56:28,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 11:56:29,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 11:57:02,908 INFO L134 CoverageAnalysis]: Checked inductivity of 105881 backedges. 56477 proven. 49377 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-04 11:57:02,908 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 11:57:02,908 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347336763] [2022-03-04 11:57:02,908 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347336763] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 11:57:02,908 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [594842576] [2022-03-04 11:57:02,908 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-04 11:57:02,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:57:02,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:57:02,910 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) [2022-03-04 11:57:02,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-04 11:57:03,242 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-04 11:57:03,242 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 11:57:03,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 1946 conjuncts, 384 conjunts are in the unsatisfiable core [2022-03-04 11:57:03,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 11:57:49,583 INFO L134 CoverageAnalysis]: Checked inductivity of 105881 backedges. 50447 proven. 55410 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-04 11:57:49,584 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 11:58:43,708 INFO L134 CoverageAnalysis]: Checked inductivity of 105881 backedges. 42367 proven. 63511 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-04 11:58:43,708 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [594842576] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 11:58:43,709 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 11:58:43,709 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [367, 369, 383] total 823 [2022-03-04 11:58:43,709 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825176261] [2022-03-04 11:58:43,709 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 11:58:43,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 823 states [2022-03-04 11:58:43,712 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 11:58:43,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 823 interpolants. [2022-03-04 11:58:43,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143962, Invalid=532544, Unknown=0, NotChecked=0, Total=676506 [2022-03-04 11:58:43,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:58:43,769 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 11:58:43,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 823 states, 823 states have (on average 3.0765492102065615) internal successors, (2532), 823 states have internal predecessors, (2532), 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) [2022-03-04 11:58:43,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 291 states. [2022-03-04 11:58:43,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 554 states. [2022-03-04 11:58:43,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 760 states. [2022-03-04 11:58:43,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:02:40,737 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 5684 transitions and produced 5464 states. [2022-03-04 12:02:40,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 291 states. [2022-03-04 12:02:40,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 554 states. [2022-03-04 12:02:40,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 760 states. [2022-03-04 12:02:40,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 1008 states. [2022-03-04 12:02:40,759 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-03-04 12:02:40,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 12:02:40,939 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 12:02:40,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 12:02:40,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1499829122, now seen corresponding path program 5 times [2022-03-04 12:02:40,940 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 12:02:40,940 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425031146] [2022-03-04 12:02:40,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 12:02:40,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms Received shutdown request... [2022-03-04 12:02:41,166 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-04 12:02:41,169 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-04 12:02:42,200 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 [2022-03-04 12:02:42,202 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 [2022-03-04 12:02:43,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 12:02:43,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-04 12:02:43,431 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Timeout exceeded at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.interpolate(Interpolator.java:245) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:227) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:879) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:803) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:352) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:192) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:284) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:165) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:327) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:229) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:216) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:227) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:156) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) 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) [2022-03-04 12:02:43,441 INFO L158 Benchmark]: Toolchain (without parser) took 702651.39ms. Allocated memory was 216.0MB in the beginning and 3.8GB in the end (delta: 3.6GB). Free memory was 173.7MB in the beginning and 2.7GB in the end (delta: -2.6GB). Peak memory consumption was 988.4MB. Max. memory is 8.0GB. [2022-03-04 12:02:43,442 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.12ms. Allocated memory is still 216.0MB. Free memory is still 174.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-04 12:02:43,443 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.38ms. Allocated memory is still 216.0MB. Free memory was 173.5MB in the beginning and 171.9MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-04 12:02:43,443 INFO L158 Benchmark]: Boogie Preprocessor took 24.95ms. Allocated memory is still 216.0MB. Free memory was 171.9MB in the beginning and 171.0MB in the end (delta: 911.5kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-04 12:02:43,444 INFO L158 Benchmark]: RCFGBuilder took 196.32ms. Allocated memory is still 216.0MB. Free memory was 170.9MB in the beginning and 162.0MB in the end (delta: 8.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-04 12:02:43,446 INFO L158 Benchmark]: TraceAbstraction took 702390.91ms. Allocated memory was 216.0MB in the beginning and 3.8GB in the end (delta: 3.6GB). Free memory was 161.5MB in the beginning and 2.7GB in the end (delta: -2.6GB). Peak memory consumption was 975.8MB. Max. memory is 8.0GB. [2022-03-04 12:02:43,450 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 0.12ms. Allocated memory is still 216.0MB. Free memory is still 174.7MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 27.38ms. Allocated memory is still 216.0MB. Free memory was 173.5MB in the beginning and 171.9MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 24.95ms. Allocated memory is still 216.0MB. Free memory was 171.9MB in the beginning and 171.0MB in the end (delta: 911.5kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 196.32ms. Allocated memory is still 216.0MB. Free memory was 170.9MB in the beginning and 162.0MB in the end (delta: 8.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 702390.91ms. Allocated memory was 216.0MB in the beginning and 3.8GB in the end (delta: 3.6GB). Free memory was 161.5MB in the beginning and 2.7GB in the end (delta: -2.6GB). Peak memory consumption was 975.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Timeout exceeded de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Timeout exceeded: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.interpolate(Interpolator.java:245) RESULT: Ultimate could not prove your program: Toolchain returned no result. Completed graceful shutdown