/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/buffer-series-array.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-02 10:39:51,354 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-02 10:39:51,383 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-02 10:39:51,408 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-02 10:39:51,409 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-02 10:39:51,409 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-02 10:39:51,410 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-02 10:39:51,412 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-02 10:39:51,413 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-02 10:39:51,413 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-02 10:39:51,414 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-02 10:39:51,421 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-02 10:39:51,422 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-02 10:39:51,425 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-02 10:39:51,427 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-02 10:39:51,428 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-02 10:39:51,429 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-02 10:39:51,430 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-02 10:39:51,434 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-02 10:39:51,435 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-02 10:39:51,436 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-02 10:39:51,439 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-02 10:39:51,440 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-02 10:39:51,441 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-02 10:39:51,444 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-02 10:39:51,448 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-02 10:39:51,449 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-02 10:39:51,449 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-02 10:39:51,456 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 [2022-03-02 10:39:51,476 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-02 10:39:51,476 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-02 10:39:51,476 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-02 10:39:51,476 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-02 10:39:51,477 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-02 10:39:51,477 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-02 10:39:51,478 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-02 10:39:51,478 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-02 10:39:51,478 INFO L138 SettingsManager]: * Use SBE=true [2022-03-02 10:39:51,478 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-02 10:39:51,478 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-02 10:39:51,479 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-02 10:39:51,479 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-02 10:39:51,479 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-02 10:39:51,479 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-02 10:39:51,479 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-02 10:39:51,479 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-02 10:39:51,479 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-02 10:39:51,479 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-02 10:39:51,479 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-02 10:39:51,479 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-02 10:39:51,479 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-02 10:39:51,479 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-02 10:39:51,480 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-02 10:39:51,480 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-02 10:39:51,480 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-02 10:39:51,480 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-02 10:39:51,480 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-02 10:39:51,480 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-02 10:39:51,480 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-02 10:39:51,480 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-02 10:39:51,480 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-02 10:39:51,480 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-02 10:39:51,480 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-02 10:39:51,481 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-02 10:39:51,481 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-03-02 10:39:51,481 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-02 10:39:51,625 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-02 10:39:51,639 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-02 10:39:51,641 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-02 10:39:51,641 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-02 10:39:51,642 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-02 10:39:51,643 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/buffer-series-array.wvr.bpl [2022-03-02 10:39:51,643 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/buffer-series-array.wvr.bpl' [2022-03-02 10:39:51,661 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-02 10:39:51,662 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-02 10:39:51,662 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-02 10:39:51,662 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-02 10:39:51,663 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-02 10:39:51,670 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:39:51" (1/1) ... [2022-03-02 10:39:51,675 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:39:51" (1/1) ... [2022-03-02 10:39:51,679 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-02 10:39:51,680 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-02 10:39:51,681 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-02 10:39:51,681 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-02 10:39:51,682 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-02 10:39:51,687 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:39:51" (1/1) ... [2022-03-02 10:39:51,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:39:51" (1/1) ... [2022-03-02 10:39:51,691 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:39:51" (1/1) ... [2022-03-02 10:39:51,691 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:39:51" (1/1) ... [2022-03-02 10:39:51,693 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:39:51" (1/1) ... [2022-03-02 10:39:51,695 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:39:51" (1/1) ... [2022-03-02 10:39:51,696 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:39:51" (1/1) ... [2022-03-02 10:39:51,696 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-02 10:39:51,697 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-02 10:39:51,697 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-02 10:39:51,697 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-02 10:39:51,698 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:39:51" (1/1) ... [2022-03-02 10:39:51,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-02 10:39:51,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:39:51,718 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) [2022-03-02 10:39:51,721 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 [2022-03-02 10:39:51,743 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-02 10:39:51,744 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-02 10:39:51,744 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-02 10:39:51,744 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-02 10:39:51,744 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-02 10:39:51,744 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-02 10:39:51,744 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-02 10:39:51,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-02 10:39:51,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-02 10:39:51,744 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-02 10:39:51,745 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-02 10:39:51,745 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-02 10:39:51,745 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-03-02 10:39:51,745 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-03-02 10:39:51,745 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-03-02 10:39:51,746 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-02 10:39:51,787 INFO L234 CfgBuilder]: Building ICFG [2022-03-02 10:39:51,790 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-02 10:39:51,921 INFO L275 CfgBuilder]: Performing block encoding [2022-03-02 10:39:51,949 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-02 10:39:51,949 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-02 10:39:51,951 INFO L202 PluginConnector]: Adding new model buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.03 10:39:51 BoogieIcfgContainer [2022-03-02 10:39:51,951 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-02 10:39:51,960 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-02 10:39:51,960 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-02 10:39:51,977 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-02 10:39:51,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:39:51" (1/2) ... [2022-03-02 10:39:51,978 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b646f3d and model type buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.03 10:39:51, skipping insertion in model container [2022-03-02 10:39:51,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.03 10:39:51" (2/2) ... [2022-03-02 10:39:51,979 INFO L111 eAbstractionObserver]: Analyzing ICFG buffer-series-array.wvr.bpl [2022-03-02 10:39:51,982 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-02 10:39:51,982 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-02 10:39:51,983 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-02 10:39:51,983 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-02 10:39:52,026 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-03-02 10:39:52,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-02 10:39:52,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:39:52,074 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) [2022-03-02 10:39:52,077 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 [2022-03-02 10:39:52,096 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-02 10:39:52,100 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 [2022-03-02 10:39:52,101 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-03-02 10:39:52,586 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1423 transitions and produced 1337 states. [2022-03-02 10:39:52,588 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-02 10:39:52,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 10:39:52,595 INFO L85 PathProgramCache]: Analyzing trace with hash 447327611, now seen corresponding path program 1 times [2022-03-02 10:39:52,601 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 10:39:52,601 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723641046] [2022-03-02 10:39:52,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 10:39:52,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 10:39:52,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 10:39:52,986 INFO L134 CoverageAnalysis]: Checked inductivity of 8516 backedges. 2740 proven. 0 refuted. 0 times theorem prover too weak. 5776 trivial. 0 not checked. [2022-03-02 10:39:52,987 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 10:39:52,987 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723641046] [2022-03-02 10:39:52,987 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723641046] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-02 10:39:52,987 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-02 10:39:52,988 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-02 10:39:52,988 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777355861] [2022-03-02 10:39:52,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-02 10:39:52,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-02 10:39:52,997 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 10:39:53,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-02 10:39:53,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-02 10:39:53,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:39:53,059 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 10:39:53,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2022-03-02 10:39:53,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:39:53,808 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2761 transitions and produced 2417 states. [2022-03-02 10:39:53,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-02 10:39:53,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-02 10:39:53,809 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-02 10:39:53,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 10:39:53,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1730886557, now seen corresponding path program 2 times [2022-03-02 10:39:53,812 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 10:39:53,812 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719956580] [2022-03-02 10:39:53,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 10:39:53,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 10:39:54,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 10:39:54,457 INFO L134 CoverageAnalysis]: Checked inductivity of 32710 backedges. 20513 proven. 8891 refuted. 0 times theorem prover too weak. 3306 trivial. 0 not checked. [2022-03-02 10:39:54,458 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 10:39:54,458 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719956580] [2022-03-02 10:39:54,459 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719956580] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 10:39:54,459 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2071375524] [2022-03-02 10:39:54,459 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-02 10:39:54,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:39:54,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:39:54,491 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) [2022-03-02 10:39:54,532 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-02 10:39:54,736 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-02 10:39:54,737 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 10:39:54,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 1438 conjuncts, 52 conjunts are in the unsatisfiable core [2022-03-02 10:39:54,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 10:39:56,892 INFO L134 CoverageAnalysis]: Checked inductivity of 32710 backedges. 13334 proven. 2356 refuted. 0 times theorem prover too weak. 17020 trivial. 0 not checked. [2022-03-02 10:39:56,893 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 10:39:58,691 INFO L134 CoverageAnalysis]: Checked inductivity of 32710 backedges. 15624 proven. 48 refuted. 0 times theorem prover too weak. 17038 trivial. 0 not checked. [2022-03-02 10:39:58,691 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2071375524] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 10:39:58,691 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 10:39:58,691 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 51, 39] total 103 [2022-03-02 10:39:58,692 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563039026] [2022-03-02 10:39:58,692 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 10:39:58,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 104 states [2022-03-02 10:39:58,694 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 10:39:58,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 104 interpolants. [2022-03-02 10:39:58,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2919, Invalid=7793, Unknown=0, NotChecked=0, Total=10712 [2022-03-02 10:39:58,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:39:58,699 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 10:39:58,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 104 states, 104 states have (on average 3.8846153846153846) internal successors, (404), 103 states have internal predecessors, (404), 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) [2022-03-02 10:39:58,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-02 10:39:58,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:40:05,185 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2939 transitions and produced 2389 states. [2022-03-02 10:40:05,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-02 10:40:05,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 172 states. [2022-03-02 10:40:05,207 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-02 10:40:05,404 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,SelfDestructingSolverStorable1 [2022-03-02 10:40:05,404 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-02 10:40:05,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 10:40:05,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1020910943, now seen corresponding path program 3 times [2022-03-02 10:40:05,405 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 10:40:05,405 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5889970] [2022-03-02 10:40:05,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 10:40:05,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 10:40:05,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 10:40:18,182 INFO L134 CoverageAnalysis]: Checked inductivity of 24452 backedges. 10437 proven. 11346 refuted. 0 times theorem prover too weak. 2669 trivial. 0 not checked. [2022-03-02 10:40:18,182 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 10:40:18,182 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5889970] [2022-03-02 10:40:18,182 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5889970] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 10:40:18,182 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [954375158] [2022-03-02 10:40:18,183 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-02 10:40:18,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:40:18,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:40:18,184 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) [2022-03-02 10:40:18,185 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-02 10:40:18,317 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 23 check-sat command(s) [2022-03-02 10:40:18,317 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 10:40:18,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 27 conjunts are in the unsatisfiable core [2022-03-02 10:40:18,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 10:40:19,411 INFO L134 CoverageAnalysis]: Checked inductivity of 24452 backedges. 5004 proven. 65 refuted. 0 times theorem prover too weak. 19383 trivial. 0 not checked. [2022-03-02 10:40:19,411 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 10:40:19,995 INFO L134 CoverageAnalysis]: Checked inductivity of 24452 backedges. 5004 proven. 65 refuted. 0 times theorem prover too weak. 19383 trivial. 0 not checked. [2022-03-02 10:40:19,995 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [954375158] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 10:40:19,995 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 10:40:19,995 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [242, 13, 13] total 257 [2022-03-02 10:40:19,996 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110780146] [2022-03-02 10:40:19,996 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 10:40:19,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 257 states [2022-03-02 10:40:19,997 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 10:40:19,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 257 interpolants. [2022-03-02 10:40:20,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13885, Invalid=51907, Unknown=0, NotChecked=0, Total=65792 [2022-03-02 10:40:20,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:40:20,031 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 10:40:20,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 257 states, 257 states have (on average 1.972762645914397) internal successors, (507), 257 states have internal predecessors, (507), 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) [2022-03-02 10:40:20,032 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-02 10:40:20,032 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 172 states. [2022-03-02 10:40:20,032 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:41:04,683 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3847 transitions and produced 3338 states. [2022-03-02 10:41:04,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-02 10:41:04,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 172 states. [2022-03-02 10:41:04,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 672 states. [2022-03-02 10:41:04,701 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-02 10:41:04,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:41:04,900 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-02 10:41:04,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 10:41:04,901 INFO L85 PathProgramCache]: Analyzing trace with hash 924734159, now seen corresponding path program 4 times [2022-03-02 10:41:04,901 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 10:41:04,901 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474253996] [2022-03-02 10:41:04,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 10:41:04,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 10:41:05,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 10:41:29,171 INFO L134 CoverageAnalysis]: Checked inductivity of 45764 backedges. 13474 proven. 29623 refuted. 0 times theorem prover too weak. 2667 trivial. 0 not checked. [2022-03-02 10:41:29,171 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 10:41:29,171 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474253996] [2022-03-02 10:41:29,172 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474253996] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 10:41:29,172 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1087708794] [2022-03-02 10:41:29,187 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-02 10:41:29,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:41:29,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:41:29,191 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) [2022-03-02 10:41:29,192 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-02 10:41:29,482 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-02 10:41:29,482 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 10:41:29,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 2090 conjuncts, 90 conjunts are in the unsatisfiable core [2022-03-02 10:41:29,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 10:41:40,038 INFO L134 CoverageAnalysis]: Checked inductivity of 45764 backedges. 14582 proven. 2752 refuted. 0 times theorem prover too weak. 28430 trivial. 0 not checked. [2022-03-02 10:41:40,038 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 10:41:51,562 INFO L134 CoverageAnalysis]: Checked inductivity of 45764 backedges. 14582 proven. 2752 refuted. 0 times theorem prover too weak. 28430 trivial. 0 not checked. [2022-03-02 10:41:51,562 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1087708794] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 10:41:51,562 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 10:41:51,562 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [396, 89, 89] total 572 [2022-03-02 10:41:51,563 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346717737] [2022-03-02 10:41:51,563 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 10:41:51,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 573 states [2022-03-02 10:41:51,567 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 10:41:51,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 573 interpolants. [2022-03-02 10:41:51,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32748, Invalid=295008, Unknown=0, NotChecked=0, Total=327756 [2022-03-02 10:41:51,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:41:51,588 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 10:41:51,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 573 states, 573 states have (on average 2.155322862129145) internal successors, (1235), 572 states have internal predecessors, (1235), 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) [2022-03-02 10:41:51,590 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-02 10:41:51,590 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 172 states. [2022-03-02 10:41:51,590 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 672 states. [2022-03-02 10:41:51,590 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:42:26,096 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 37272 transitions and produced 29605 states. [2022-03-02 10:42:26,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-02 10:42:26,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 174 states. [2022-03-02 10:42:26,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 682 states. [2022-03-02 10:42:26,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 317 states. [2022-03-02 10:42:26,117 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-02 10:42:26,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:42:26,315 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-02 10:42:26,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 10:42:26,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1049204283, now seen corresponding path program 5 times [2022-03-02 10:42:26,318 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 10:42:26,318 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142990585] [2022-03-02 10:42:26,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 10:42:26,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 10:42:43,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2022-03-02 10:54:06,362 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (4 of 5 remaining) [2022-03-02 10:54:06,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-02 10:54:06,363 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 6606 with TraceHistMax 1768,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 1608 known predicates. [2022-03-02 10:54:06,365 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-03-02 10:54:06,365 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-03-02 10:54:06,365 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-03-02 10:54:06,365 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-03-02 10:54:06,388 INFO L732 BasicCegarLoop]: Path program histogram: [5] [2022-03-02 10:54:06,391 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-02 10:54:06,391 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-02 10:54:06,395 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 [2022-03-02 10:54:06,396 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 [2022-03-02 10:54:06,404 INFO L202 PluginConnector]: Adding new model buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.03 10:54:06 BasicIcfg [2022-03-02 10:54:06,404 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-02 10:54:06,405 INFO L158 Benchmark]: Toolchain (without parser) took 854743.06ms. Allocated memory was 197.1MB in the beginning and 7.3GB in the end (delta: 7.1GB). Free memory was 158.6MB in the beginning and 1.8GB in the end (delta: -1.6GB). Peak memory consumption was 5.5GB. Max. memory is 8.0GB. [2022-03-02 10:54:06,405 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.09ms. Allocated memory is still 197.1MB. Free memory is still 159.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-02 10:54:06,405 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.75ms. Allocated memory is still 197.1MB. Free memory was 158.6MB in the beginning and 157.0MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-02 10:54:06,405 INFO L158 Benchmark]: Boogie Preprocessor took 15.04ms. Allocated memory is still 197.1MB. Free memory was 157.0MB in the beginning and 156.0MB in the end (delta: 995.0kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-02 10:54:06,406 INFO L158 Benchmark]: RCFGBuilder took 253.92ms. Allocated memory is still 197.1MB. Free memory was 156.0MB in the beginning and 145.9MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-03-02 10:54:06,406 INFO L158 Benchmark]: TraceAbstraction took 854444.25ms. Allocated memory was 197.1MB in the beginning and 7.3GB in the end (delta: 7.1GB). Free memory was 145.4MB in the beginning and 1.8GB in the end (delta: -1.6GB). Peak memory consumption was 5.5GB. Max. memory is 8.0GB. [2022-03-02 10:54:06,407 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 0.09ms. Allocated memory is still 197.1MB. Free memory is still 159.8MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 17.75ms. Allocated memory is still 197.1MB. Free memory was 158.6MB in the beginning and 157.0MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 15.04ms. Allocated memory is still 197.1MB. Free memory was 157.0MB in the beginning and 156.0MB in the end (delta: 995.0kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 253.92ms. Allocated memory is still 197.1MB. Free memory was 156.0MB in the beginning and 145.9MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 854444.25ms. Allocated memory was 197.1MB in the beginning and 7.3GB in the end (delta: 7.1GB). Free memory was 145.4MB in the beginning and 1.8GB in the end (delta: -1.6GB). Peak memory consumption was 5.5GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 82]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 6606 with TraceHistMax 1768,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 1608 known predicates. - TimeoutResultAtElement [Line: 73]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 6606 with TraceHistMax 1768,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 1608 known predicates. - TimeoutResultAtElement [Line: 73]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 6606 with TraceHistMax 1768,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 1608 known predicates. - TimeoutResultAtElement [Line: 74]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 6606 with TraceHistMax 1768,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 1608 known predicates. - TimeoutResultAtElement [Line: 75]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 6606 with TraceHistMax 1768,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 1608 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 54 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 854.3s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 86.9s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 1176, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 64.4s InterpolantComputationTime, 4140 NumberOfCodeBlocks, 3770 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 6058 ConstructedInterpolants, 0 QuantifiedInterpolants, 25324 SizeOfPredicates, 8 NumberOfNonLiveVariables, 3963 ConjunctsInSsa, 169 ConjunctsInUnsatCore, 10 InterpolantComputations, 1 PerfectInterpolantSequences, 259396/317294 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown