/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-MCRwithDepranks-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-820ea7a [2022-02-20 04:20:49,815 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 04:20:49,818 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 04:20:49,894 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 04:20:49,895 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 04:20:49,897 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 04:20:49,900 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 04:20:49,903 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 04:20:49,905 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 04:20:49,910 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 04:20:49,911 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 04:20:49,912 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 04:20:49,912 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 04:20:49,914 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 04:20:49,915 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 04:20:49,917 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 04:20:49,918 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 04:20:49,919 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 04:20:49,921 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 04:20:49,927 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 04:20:49,929 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 04:20:49,930 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 04:20:49,931 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 04:20:49,932 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 04:20:49,938 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-20 04:20:49,946 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 04:20:49,947 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 04:20:49,947 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 04:20:49,948 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-MCRwithDepranks-Lazy.epf [2022-02-20 04:20:49,980 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 04:20:49,981 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 04:20:49,981 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 04:20:49,981 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 04:20:49,982 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 04:20:49,982 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 04:20:49,983 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 04:20:49,983 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 04:20:49,983 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 04:20:49,983 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 04:20:49,984 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 04:20:49,984 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 04:20:49,984 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 04:20:49,984 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 04:20:49,984 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 04:20:49,985 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 04:20:49,985 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 04:20:49,985 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 04:20:49,985 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 04:20:49,985 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 04:20:49,985 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 04:20:49,985 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 04:20:49,985 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 04:20:49,985 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-20 04:20:49,987 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 04:20:49,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 04:20:49,987 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 04:20:49,987 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-20 04:20:49,988 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 04:20:49,988 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 04:20:49,988 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 04:20:49,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 04:20:49,988 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 04:20:49,988 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-20 04:20:49,988 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 04:20:49,988 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-20 04:20:49,989 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-20 04:20:50,243 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 04:20:50,277 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 04:20:50,279 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 04:20:50,280 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-20 04:20:50,281 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-20 04:20:50,283 INFO L432 ainManager$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 [2022-02-20 04:20:50,283 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' [2022-02-20 04:20:50,304 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 04:20:50,305 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-20 04:20:50,306 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 04:20:50,307 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 04:20:50,307 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 04:20:50,320 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 20.02 04:20:50" (1/1) ... [2022-02-20 04:20:50,326 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 20.02 04:20:50" (1/1) ... [2022-02-20 04:20:50,332 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-20 04:20:50,333 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 04:20:50,335 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 04:20:50,335 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 04:20:50,335 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 04:20:50,342 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 20.02 04:20:50" (1/1) ... [2022-02-20 04:20:50,342 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 20.02 04:20:50" (1/1) ... [2022-02-20 04:20:50,344 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 20.02 04:20:50" (1/1) ... [2022-02-20 04:20:50,346 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 20.02 04:20:50" (1/1) ... [2022-02-20 04:20:50,349 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 20.02 04:20:50" (1/1) ... [2022-02-20 04:20:50,352 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 20.02 04:20:50" (1/1) ... [2022-02-20 04:20:50,353 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 20.02 04:20:50" (1/1) ... [2022-02-20 04:20:50,355 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 04:20:50,356 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 04:20:50,356 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 04:20:50,356 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 04:20:50,358 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 04:20:50" (1/1) ... [2022-02-20 04:20:50,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 04:20:50,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:20:50,392 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) [2022-02-20 04:20:50,410 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 [2022-02-20 04:20:50,430 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-20 04:20:50,430 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-20 04:20:50,430 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-20 04:20:50,431 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-20 04:20:50,431 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-20 04:20:50,431 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-20 04:20:50,431 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-20 04:20:50,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 04:20:50,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 04:20:50,431 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-02-20 04:20:50,431 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-20 04:20:50,431 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-20 04:20:50,432 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-02-20 04:20:50,432 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-02-20 04:20:50,432 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-02-20 04:20:50,433 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-20 04:20:50,477 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 04:20:50,479 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 04:20:50,636 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 04:20:50,653 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 04:20:50,653 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-20 04:20:50,655 INFO L202 PluginConnector]: Adding new model buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:20:50 BoogieIcfgContainer [2022-02-20 04:20:50,656 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 04:20:50,657 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 04:20:50,658 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 04:20:50,662 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 04:20:50,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 04:20:50" (1/2) ... [2022-02-20 04:20:50,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35622de6 and model type buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:20:50, skipping insertion in model container [2022-02-20 04:20:50,664 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 20.02 04:20:50" (2/2) ... [2022-02-20 04:20:50,668 INFO L111 eAbstractionObserver]: Analyzing ICFG buffer-series-array.wvr.bpl [2022-02-20 04:20:50,673 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-20 04:20:50,673 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 04:20:50,673 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 04:20:50,673 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-20 04:20:50,727 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-02-20 04:20:50,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-20 04:20:50,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:20:50,817 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) [2022-02-20 04:20:50,837 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 [2022-02-20 04:20:50,855 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 04:20:50,863 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 [2022-02-20 04:20:50,864 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-02-20 04:20:51,384 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 12631 transitions and produced 4480 states. [2022-02-20 04:20:51,386 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-20 04:20:51,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:20:51,395 INFO L85 PathProgramCache]: Analyzing trace with hash -506129211, now seen corresponding path program 1 times [2022-02-20 04:20:51,404 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:20:51,404 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979929575] [2022-02-20 04:20:51,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:20:51,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:20:51,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:20:51,918 INFO L134 CoverageAnalysis]: Checked inductivity of 2762 backedges. 869 proven. 0 refuted. 0 times theorem prover too weak. 1893 trivial. 0 not checked. [2022-02-20 04:20:51,918 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 04:20:51,919 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979929575] [2022-02-20 04:20:51,919 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979929575] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 04:20:51,919 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 04:20:51,920 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-20 04:20:51,940 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712168368] [2022-02-20 04:20:51,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 04:20:51,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-20 04:20:51,947 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 04:20:51,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-20 04:20:51,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-20 04:20:51,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:20:51,979 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 04:20:51,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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) [2022-02-20 04:20:51,982 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:20:52,108 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1431 transitions and produced 906 states. [2022-02-20 04:20:52,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:20:52,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-20 04:20:52,110 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-20 04:20:52,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:20:52,113 INFO L85 PathProgramCache]: Analyzing trace with hash -209219181, now seen corresponding path program 2 times [2022-02-20 04:20:52,113 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:20:52,114 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948372991] [2022-02-20 04:20:52,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:20:52,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:20:52,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:20:54,363 INFO L134 CoverageAnalysis]: Checked inductivity of 2957 backedges. 1697 proven. 1130 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2022-02-20 04:20:54,363 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 04:20:54,364 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948372991] [2022-02-20 04:20:54,364 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948372991] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 04:20:54,364 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1555746237] [2022-02-20 04:20:54,364 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-20 04:20:54,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:20:54,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:20:54,371 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) [2022-02-20 04:20:54,420 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-20 04:20:54,550 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-20 04:20:54,550 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 04:20:54,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 627 conjuncts, 55 conjunts are in the unsatisfiable core [2022-02-20 04:20:54,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 04:20:58,140 INFO L134 CoverageAnalysis]: Checked inductivity of 2957 backedges. 131 proven. 2727 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-02-20 04:20:58,140 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 04:20:59,283 INFO L134 CoverageAnalysis]: Checked inductivity of 2957 backedges. 1199 proven. 1452 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2022-02-20 04:20:59,284 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1555746237] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 04:20:59,284 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 04:20:59,284 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 54, 13] total 123 [2022-02-20 04:20:59,285 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526504944] [2022-02-20 04:20:59,285 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 04:20:59,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 124 states [2022-02-20 04:20:59,287 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 04:20:59,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 124 interpolants. [2022-02-20 04:20:59,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1430, Invalid=13822, Unknown=0, NotChecked=0, Total=15252 [2022-02-20 04:20:59,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:20:59,294 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 04:20:59,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 124 states, 124 states have (on average 3.8548387096774195) internal successors, (478), 123 states have internal predecessors, (478), 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) [2022-02-20 04:20:59,295 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:20:59,295 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:21:13,558 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1985 transitions and produced 1462 states. [2022-02-20 04:21:13,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:21:13,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 244 states. [2022-02-20 04:21:13,586 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-02-20 04:21:13,774 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 [2022-02-20 04:21:13,774 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-20 04:21:13,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:21:13,775 INFO L85 PathProgramCache]: Analyzing trace with hash 48188039, now seen corresponding path program 3 times [2022-02-20 04:21:13,775 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:21:13,775 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461960594] [2022-02-20 04:21:13,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:21:13,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:21:13,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:21:15,180 INFO L134 CoverageAnalysis]: Checked inductivity of 6164 backedges. 2994 proven. 1162 refuted. 0 times theorem prover too weak. 2008 trivial. 0 not checked. [2022-02-20 04:21:15,181 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 04:21:15,181 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461960594] [2022-02-20 04:21:15,181 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461960594] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 04:21:15,181 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [528212482] [2022-02-20 04:21:15,182 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-20 04:21:15,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:21:15,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:21:15,186 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) [2022-02-20 04:21:15,187 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-20 04:21:15,305 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-02-20 04:21:15,305 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 04:21:15,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 12 conjunts are in the unsatisfiable core [2022-02-20 04:21:15,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 04:21:15,926 INFO L134 CoverageAnalysis]: Checked inductivity of 6164 backedges. 913 proven. 5 refuted. 0 times theorem prover too weak. 5246 trivial. 0 not checked. [2022-02-20 04:21:15,927 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 04:21:16,355 INFO L134 CoverageAnalysis]: Checked inductivity of 6164 backedges. 913 proven. 5 refuted. 0 times theorem prover too weak. 5246 trivial. 0 not checked. [2022-02-20 04:21:16,356 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [528212482] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 04:21:16,357 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 04:21:16,358 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [59, 8, 8] total 68 [2022-02-20 04:21:16,363 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506715443] [2022-02-20 04:21:16,363 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 04:21:16,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2022-02-20 04:21:16,364 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 04:21:16,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2022-02-20 04:21:16,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1407, Invalid=3149, Unknown=0, NotChecked=0, Total=4556 [2022-02-20 04:21:16,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:21:16,367 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 04:21:16,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 68 states, 68 states have (on average 3.323529411764706) internal successors, (226), 68 states have internal predecessors, (226), 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) [2022-02-20 04:21:16,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:21:16,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 244 states. [2022-02-20 04:21:16,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:21:20,431 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2981 transitions and produced 2004 states. [2022-02-20 04:21:20,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:21:20,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 286 states. [2022-02-20 04:21:20,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-02-20 04:21:20,450 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-02-20 04:21:20,633 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 [2022-02-20 04:21:20,634 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-20 04:21:20,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:21:20,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1218238245, now seen corresponding path program 4 times [2022-02-20 04:21:20,635 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:21:20,635 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214470857] [2022-02-20 04:21:20,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:21:20,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:21:20,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:21:28,603 INFO L134 CoverageAnalysis]: Checked inductivity of 15745 backedges. 6700 proven. 7539 refuted. 0 times theorem prover too weak. 1506 trivial. 0 not checked. [2022-02-20 04:21:28,604 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 04:21:28,604 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214470857] [2022-02-20 04:21:28,604 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214470857] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 04:21:28,604 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [497827129] [2022-02-20 04:21:28,604 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-20 04:21:28,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:21:28,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:21:28,608 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) [2022-02-20 04:21:28,626 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-20 04:21:28,816 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-20 04:21:28,817 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 04:21:28,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 1371 conjuncts, 124 conjunts are in the unsatisfiable core [2022-02-20 04:21:28,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 04:21:40,791 INFO L134 CoverageAnalysis]: Checked inductivity of 15745 backedges. 4428 proven. 9679 refuted. 0 times theorem prover too weak. 1638 trivial. 0 not checked. [2022-02-20 04:21:40,792 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 04:21:45,533 INFO L134 CoverageAnalysis]: Checked inductivity of 15745 backedges. 6829 proven. 6650 refuted. 0 times theorem prover too weak. 2266 trivial. 0 not checked. [2022-02-20 04:21:45,533 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [497827129] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 04:21:45,534 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 04:21:45,534 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [162, 123, 39] total 322 [2022-02-20 04:21:45,534 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029418613] [2022-02-20 04:21:45,534 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 04:21:45,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 323 states [2022-02-20 04:21:45,536 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 04:21:45,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 323 interpolants. [2022-02-20 04:21:45,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7223, Invalid=96783, Unknown=0, NotChecked=0, Total=104006 [2022-02-20 04:21:45,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:21:45,549 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 04:21:45,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 323 states, 323 states have (on average 3.222910216718266) internal successors, (1041), 322 states have internal predecessors, (1041), 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) [2022-02-20 04:21:45,550 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:21:45,551 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 286 states. [2022-02-20 04:21:45,551 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2022-02-20 04:21:45,551 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:22:46,655 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3526 transitions and produced 2568 states. [2022-02-20 04:22:46,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:22:46,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 286 states. [2022-02-20 04:22:46,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-02-20 04:22:46,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 511 states. [2022-02-20 04:22:46,675 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-02-20 04:22:46,859 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 [2022-02-20 04:22:46,861 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-20 04:22:46,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:22:46,862 INFO L85 PathProgramCache]: Analyzing trace with hash 725406080, now seen corresponding path program 5 times [2022-02-20 04:22:46,862 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:22:46,862 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356772283] [2022-02-20 04:22:46,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:22:46,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:22:47,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:22:55,422 INFO L134 CoverageAnalysis]: Checked inductivity of 18668 backedges. 7827 proven. 5366 refuted. 0 times theorem prover too weak. 5475 trivial. 0 not checked. [2022-02-20 04:22:55,423 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 04:22:55,423 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356772283] [2022-02-20 04:22:55,423 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356772283] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 04:22:55,423 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [760900230] [2022-02-20 04:22:55,423 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-20 04:22:55,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:22:55,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:22:55,424 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) [2022-02-20 04:22:55,425 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-20 04:22:56,289 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 84 check-sat command(s) [2022-02-20 04:22:56,289 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 04:22:56,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 1451 conjuncts, 147 conjunts are in the unsatisfiable core [2022-02-20 04:22:56,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 04:23:11,319 INFO L134 CoverageAnalysis]: Checked inductivity of 18668 backedges. 9551 proven. 7145 refuted. 0 times theorem prover too weak. 1972 trivial. 0 not checked. [2022-02-20 04:23:11,320 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 04:23:22,453 INFO L134 CoverageAnalysis]: Checked inductivity of 18668 backedges. 9551 proven. 7145 refuted. 0 times theorem prover too weak. 1972 trivial. 0 not checked. [2022-02-20 04:23:22,453 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [760900230] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 04:23:22,456 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 04:23:22,456 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [152, 146, 85] total 381 [2022-02-20 04:23:22,458 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139054937] [2022-02-20 04:23:22,458 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 04:23:22,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 382 states [2022-02-20 04:23:22,460 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 04:23:22,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 382 interpolants. [2022-02-20 04:23:22,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24153, Invalid=121389, Unknown=0, NotChecked=0, Total=145542 [2022-02-20 04:23:22,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:23:22,478 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 04:23:22,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 382 states, 382 states have (on average 3.3769633507853403) internal successors, (1290), 381 states have internal predecessors, (1290), 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) [2022-02-20 04:23:22,479 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:23:22,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 286 states. [2022-02-20 04:23:22,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2022-02-20 04:23:22,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 511 states. [2022-02-20 04:23:22,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:24:20,017 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 5034 transitions and produced 3222 states. [2022-02-20 04:24:20,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:24:20,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 296 states. [2022-02-20 04:24:20,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-02-20 04:24:20,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 643 states. [2022-02-20 04:24:20,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 549 states. [2022-02-20 04:24:20,038 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-02-20 04:24:20,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:24:20,221 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-20 04:24:20,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:24:20,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1848080875, now seen corresponding path program 6 times [2022-02-20 04:24:20,222 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:24:20,222 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634277933] [2022-02-20 04:24:20,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:24:20,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:24:20,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:24:46,435 INFO L134 CoverageAnalysis]: Checked inductivity of 44022 backedges. 18795 proven. 19255 refuted. 0 times theorem prover too weak. 5972 trivial. 0 not checked. [2022-02-20 04:24:46,435 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 04:24:46,436 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634277933] [2022-02-20 04:24:46,436 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634277933] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 04:24:46,436 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [585771469] [2022-02-20 04:24:46,436 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-20 04:24:46,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:24:46,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:24:46,444 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-20 04:24:46,451 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-20 04:24:47,154 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 69 check-sat command(s) [2022-02-20 04:24:47,155 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 04:24:47,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 1118 conjuncts, 20 conjunts are in the unsatisfiable core [2022-02-20 04:24:47,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 04:24:49,095 INFO L134 CoverageAnalysis]: Checked inductivity of 44022 backedges. 11529 proven. 1044 refuted. 0 times theorem prover too weak. 31449 trivial. 0 not checked. [2022-02-20 04:24:49,096 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 04:24:49,991 INFO L134 CoverageAnalysis]: Checked inductivity of 44022 backedges. 11529 proven. 1044 refuted. 0 times theorem prover too weak. 31449 trivial. 0 not checked. [2022-02-20 04:24:49,991 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [585771469] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 04:24:49,992 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 04:24:49,992 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [296, 10, 10] total 305 [2022-02-20 04:24:49,992 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448389170] [2022-02-20 04:24:49,992 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 04:24:49,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 305 states [2022-02-20 04:24:49,993 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 04:24:49,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 305 interpolants. [2022-02-20 04:24:50,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17346, Invalid=75374, Unknown=0, NotChecked=0, Total=92720 [2022-02-20 04:24:50,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:24:50,004 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 04:24:50,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 305 states, 305 states have (on average 2.226229508196721) internal successors, (679), 305 states have internal predecessors, (679), 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) [2022-02-20 04:24:50,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:24:50,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 296 states. [2022-02-20 04:24:50,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2022-02-20 04:24:50,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 643 states. [2022-02-20 04:24:50,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 549 states. [2022-02-20 04:24:50,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:25:29,619 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 5405 transitions and produced 3503 states. [2022-02-20 04:25:29,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:25:29,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 296 states. [2022-02-20 04:25:29,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-02-20 04:25:29,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 718 states. [2022-02-20 04:25:29,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 549 states. [2022-02-20 04:25:29,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 532 states. [2022-02-20 04:25:29,638 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-02-20 04:25:29,820 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:25:29,821 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-20 04:25:29,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:25:29,822 INFO L85 PathProgramCache]: Analyzing trace with hash 423123931, now seen corresponding path program 7 times [2022-02-20 04:25:29,822 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:25:29,822 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701981716] [2022-02-20 04:25:29,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:25:29,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:25:30,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:26:06,985 INFO L134 CoverageAnalysis]: Checked inductivity of 53051 backedges. 24738 proven. 22346 refuted. 0 times theorem prover too weak. 5967 trivial. 0 not checked. [2022-02-20 04:26:06,985 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 04:26:06,986 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701981716] [2022-02-20 04:26:06,986 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701981716] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 04:26:06,986 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1319178676] [2022-02-20 04:26:06,986 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-20 04:26:06,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:26:06,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:26:06,987 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-20 04:26:06,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-20 04:26:07,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:26:07,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 2307 conjuncts, 232 conjunts are in the unsatisfiable core [2022-02-20 04:26:07,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 04:26:51,766 INFO L134 CoverageAnalysis]: Checked inductivity of 53051 backedges. 25007 proven. 24103 refuted. 0 times theorem prover too weak. 3941 trivial. 0 not checked. [2022-02-20 04:26:51,766 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 04:27:16,384 INFO L134 CoverageAnalysis]: Checked inductivity of 53051 backedges. 31493 proven. 16984 refuted. 0 times theorem prover too weak. 4574 trivial. 0 not checked. [2022-02-20 04:27:16,385 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1319178676] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 04:27:16,385 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 04:27:16,385 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [355, 231, 113] total 697 [2022-02-20 04:27:16,385 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894606180] [2022-02-20 04:27:16,385 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 04:27:16,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 698 states [2022-02-20 04:27:16,387 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 04:27:16,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 698 interpolants. [2022-02-20 04:27:16,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61304, Invalid=425202, Unknown=0, NotChecked=0, Total=486506 [2022-02-20 04:27:16,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:27:16,409 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 04:27:16,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 698 states, 698 states have (on average 2.833810888252149) internal successors, (1978), 697 states have internal predecessors, (1978), 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) [2022-02-20 04:27:16,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:27:16,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 296 states. [2022-02-20 04:27:16,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2022-02-20 04:27:16,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 718 states. [2022-02-20 04:27:16,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 549 states. [2022-02-20 04:27:16,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 532 states. [2022-02-20 04:27:16,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Received shutdown request... [2022-02-20 04:32:34,835 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 [2022-02-20 04:32:34,835 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 [2022-02-20 04:32:34,835 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-20 04:32:34,852 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-02-20 04:32:35,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:32:35,030 WARN L594 AbstractCegarLoop]: Verification canceled: while PredicateComparison was comparing new predicate (quantifier-free) to 1658 known predicates. [2022-02-20 04:32:35,032 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (4 of 5 remaining) [2022-02-20 04:32:35,033 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-02-20 04:32:35,033 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-02-20 04:32:35,033 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-02-20 04:32:35,033 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-02-20 04:32:35,039 INFO L732 BasicCegarLoop]: Path program histogram: [7] [2022-02-20 04:32:35,041 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-20 04:32:35,041 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 04:32:35,042 INFO L202 PluginConnector]: Adding new model buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.02 04:32:35 BasicIcfg [2022-02-20 04:32:35,043 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-20 04:32:35,043 INFO L158 Benchmark]: Toolchain (without parser) took 704737.78ms. Allocated memory was 184.5MB in the beginning and 4.6GB in the end (delta: 4.4GB). Free memory was 141.3MB in the beginning and 3.2GB in the end (delta: -3.1GB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. [2022-02-20 04:32:35,043 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.12ms. Allocated memory is still 184.5MB. Free memory is still 142.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-20 04:32:35,044 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.28ms. Allocated memory is still 184.5MB. Free memory was 141.2MB in the beginning and 139.6MB in the end (delta: 1.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-02-20 04:32:35,044 INFO L158 Benchmark]: Boogie Preprocessor took 20.78ms. Allocated memory is still 184.5MB. Free memory was 139.6MB in the beginning and 138.7MB in the end (delta: 966.8kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-20 04:32:35,044 INFO L158 Benchmark]: RCFGBuilder took 299.43ms. Allocated memory is still 184.5MB. Free memory was 138.6MB in the beginning and 128.5MB in the end (delta: 10.1MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-02-20 04:32:35,044 INFO L158 Benchmark]: TraceAbstraction took 704385.17ms. Allocated memory was 184.5MB in the beginning and 4.6GB in the end (delta: 4.4GB). Free memory was 127.9MB in the beginning and 3.2GB in the end (delta: -3.1GB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. [2022-02-20 04:32:35,047 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 184.5MB. Free memory is still 142.4MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 27.28ms. Allocated memory is still 184.5MB. Free memory was 141.2MB in the beginning and 139.6MB in the end (delta: 1.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 20.78ms. Allocated memory is still 184.5MB. Free memory was 139.6MB in the beginning and 138.7MB in the end (delta: 966.8kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 299.43ms. Allocated memory is still 184.5MB. Free memory was 138.6MB in the beginning and 128.5MB in the end (delta: 10.1MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 704385.17ms. Allocated memory was 184.5MB in the beginning and 4.6GB in the end (delta: 4.4GB). Free memory was 127.9MB in the beginning and 3.2GB in the end (delta: -3.1GB). Peak memory consumption was 1.3GB. 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 PredicateComparison was comparing new predicate (quantifier-free) to 1658 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 PredicateComparison was comparing new predicate (quantifier-free) to 1658 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 PredicateComparison was comparing new predicate (quantifier-free) to 1658 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 PredicateComparison was comparing new predicate (quantifier-free) to 1658 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 PredicateComparison was comparing new predicate (quantifier-free) to 1658 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: 704.2s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 495.6s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 3423, 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: 0.3s SsaConstructionTime, 4.1s SatisfiabilityAnalysisTime, 202.3s InterpolantComputationTime, 7206 NumberOfCodeBlocks, 6538 NumberOfCodeBlocksAsserted, 175 NumberOfCheckSat, 10674 ConstructedInterpolants, 0 QuantifiedInterpolants, 65729 SizeOfPredicates, 16 NumberOfNonLiveVariables, 7107 ConjunctsInSsa, 590 ConjunctsInUnsatCore, 19 InterpolantComputations, 1 PerfectInterpolantSequences, 289802/424583 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