/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-NoForkJoinOpt.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/buffer-series.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-04 06:16:28,315 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-04 06:16:28,317 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-04 06:16:28,335 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-04 06:16:28,336 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-04 06:16:28,337 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-04 06:16:28,337 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-04 06:16:28,339 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-04 06:16:28,340 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-04 06:16:28,341 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-04 06:16:28,341 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-04 06:16:28,342 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-04 06:16:28,342 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-04 06:16:28,343 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-04 06:16:28,344 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-04 06:16:28,344 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-04 06:16:28,345 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-04 06:16:28,345 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-04 06:16:28,346 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-04 06:16:28,348 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-04 06:16:28,348 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-04 06:16:28,349 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-04 06:16:28,350 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-04 06:16:28,350 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-04 06:16:28,352 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-04 06:16:28,352 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-04 06:16:28,353 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-04 06:16:28,353 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-04 06:16:28,353 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-04 06:16:28,354 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-04 06:16:28,354 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-04 06:16:28,355 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-04 06:16:28,355 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-04 06:16:28,356 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-04 06:16:28,356 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-04 06:16:28,356 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-04 06:16:28,357 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-04 06:16:28,357 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-04 06:16:28,357 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-04 06:16:28,358 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-04 06:16:28,358 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-04 06:16:28,359 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-NoForkJoinOpt.epf [2022-03-04 06:16:28,373 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-04 06:16:28,373 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-04 06:16:28,373 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-04 06:16:28,373 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-04 06:16:28,374 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-04 06:16:28,374 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-04 06:16:28,374 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-04 06:16:28,374 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-04 06:16:28,374 INFO L138 SettingsManager]: * Use SBE=true [2022-03-04 06:16:28,375 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-04 06:16:28,375 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-04 06:16:28,375 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-04 06:16:28,375 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-04 06:16:28,375 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-04 06:16:28,375 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-04 06:16:28,375 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-04 06:16:28,376 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-04 06:16:28,376 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-04 06:16:28,376 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-04 06:16:28,376 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-04 06:16:28,376 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-04 06:16:28,376 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-04 06:16:28,376 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-04 06:16:28,376 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-04 06:16:28,377 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-04 06:16:28,377 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 06:16:28,377 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-04 06:16:28,377 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-04 06:16:28,377 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-04 06:16:28,377 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-04 06:16:28,377 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-04 06:16:28,377 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-04 06:16:28,377 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-04 06:16:28,378 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-04 06:16:28,378 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-04 06:16:28,378 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-04 06:16:28,378 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-04 06:16:28,378 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-04 06:16:28,553 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-04 06:16:28,587 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-04 06:16:28,589 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-04 06:16:28,590 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-04 06:16:28,595 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-04 06:16:28,596 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/buffer-series.wvr.bpl [2022-03-04 06:16:28,596 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/buffer-series.wvr.bpl' [2022-03-04 06:16:28,622 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-04 06:16:28,623 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-04 06:16:28,624 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-04 06:16:28,631 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-04 06:16:28,631 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-04 06:16:28,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "buffer-series.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:16:28" (1/1) ... [2022-03-04 06:16:28,670 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "buffer-series.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:16:28" (1/1) ... [2022-03-04 06:16:28,676 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-04 06:16:28,678 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-04 06:16:28,679 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-04 06:16:28,679 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-04 06:16:28,679 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-04 06:16:28,687 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "buffer-series.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:16:28" (1/1) ... [2022-03-04 06:16:28,687 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "buffer-series.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:16:28" (1/1) ... [2022-03-04 06:16:28,688 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "buffer-series.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:16:28" (1/1) ... [2022-03-04 06:16:28,688 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "buffer-series.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:16:28" (1/1) ... [2022-03-04 06:16:28,692 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "buffer-series.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:16:28" (1/1) ... [2022-03-04 06:16:28,695 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "buffer-series.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:16:28" (1/1) ... [2022-03-04 06:16:28,696 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "buffer-series.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:16:28" (1/1) ... [2022-03-04 06:16:28,697 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-04 06:16:28,698 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-04 06:16:28,698 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-04 06:16:28,698 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-04 06:16:28,699 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "buffer-series.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:16:28" (1/1) ... [2022-03-04 06:16:28,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 06:16:28,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:16:28,729 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-04 06:16:28,735 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-04 06:16:28,759 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-04 06:16:28,759 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-04 06:16:28,760 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-04 06:16:28,760 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-04 06:16:28,760 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-04 06:16:28,760 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-04 06:16:28,760 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-04 06:16:28,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-04 06:16:28,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-04 06:16:28,760 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-04 06:16:28,760 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-04 06:16:28,761 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-04 06:16:28,761 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-03-04 06:16:28,761 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-03-04 06:16:28,761 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-03-04 06:16:28,761 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-04 06:16:28,799 INFO L234 CfgBuilder]: Building ICFG [2022-03-04 06:16:28,800 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-04 06:16:28,891 INFO L275 CfgBuilder]: Performing block encoding [2022-03-04 06:16:28,905 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-04 06:16:28,906 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-04 06:16:28,907 INFO L202 PluginConnector]: Adding new model buffer-series.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 06:16:28 BoogieIcfgContainer [2022-03-04 06:16:28,907 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-04 06:16:28,908 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-04 06:16:28,908 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-04 06:16:28,911 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-04 06:16:28,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "buffer-series.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:16:28" (1/2) ... [2022-03-04 06:16:28,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e905e06 and model type buffer-series.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 06:16:28, skipping insertion in model container [2022-03-04 06:16:28,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "buffer-series.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 06:16:28" (2/2) ... [2022-03-04 06:16:28,912 INFO L111 eAbstractionObserver]: Analyzing ICFG buffer-series.wvr.bpl [2022-03-04 06:16:28,916 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-04 06:16:28,916 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-04 06:16:28,916 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-04 06:16:28,916 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-04 06:16:28,948 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-03-04 06:16:28,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-04 06:16:28,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:16:28,979 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-03-04 06:16:28,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-03-04 06:16:29,001 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-04 06:16:29,006 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=false, mMcrOverapproximateWrwc=true [2022-03-04 06:16:29,006 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-03-04 06:16:29,357 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 12631 transitions and produced 4480 states. [2022-03-04 06:16:29,360 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-04 06:16:29,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 06:16:29,367 INFO L85 PathProgramCache]: Analyzing trace with hash -506129211, now seen corresponding path program 1 times [2022-03-04 06:16:29,373 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 06:16:29,375 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785093609] [2022-03-04 06:16:29,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:16:29,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 06:16:29,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:16:29,798 INFO L134 CoverageAnalysis]: Checked inductivity of 2762 backedges. 869 proven. 0 refuted. 0 times theorem prover too weak. 1893 trivial. 0 not checked. [2022-03-04 06:16:29,799 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 06:16:29,799 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785093609] [2022-03-04 06:16:29,800 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785093609] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-04 06:16:29,800 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-04 06:16:29,800 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-04 06:16:29,801 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856600472] [2022-03-04 06:16:29,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-04 06:16:29,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-04 06:16:29,808 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 06:16:29,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-04 06:16:29,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-04 06:16:29,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:16:29,871 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 06:16:29,873 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) [2022-03-04 06:16:29,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:16:29,966 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1431 transitions and produced 906 states. [2022-03-04 06:16:29,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 06:16:29,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-04 06:16:29,968 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-04 06:16:29,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 06:16:29,971 INFO L85 PathProgramCache]: Analyzing trace with hash -209219181, now seen corresponding path program 2 times [2022-03-04 06:16:29,971 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 06:16:29,972 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271329609] [2022-03-04 06:16:29,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:16:29,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 06:16:30,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:16:31,936 INFO L134 CoverageAnalysis]: Checked inductivity of 2957 backedges. 1697 proven. 1130 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2022-03-04 06:16:31,936 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 06:16:31,936 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271329609] [2022-03-04 06:16:31,936 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271329609] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 06:16:31,937 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [130124018] [2022-03-04 06:16:31,937 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-04 06:16:31,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:16:31,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:16:31,957 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 06:16:31,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-04 06:16:32,066 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-04 06:16:32,066 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 06:16:32,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 627 conjuncts, 55 conjunts are in the unsatisfiable core [2022-03-04 06:16:32,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 06:16:35,199 INFO L134 CoverageAnalysis]: Checked inductivity of 2957 backedges. 131 proven. 2727 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-03-04 06:16:35,199 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 06:16:36,204 INFO L134 CoverageAnalysis]: Checked inductivity of 2957 backedges. 1199 proven. 1452 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2022-03-04 06:16:36,205 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [130124018] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 06:16:36,206 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 06:16:36,206 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 54, 13] total 123 [2022-03-04 06:16:36,207 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600612345] [2022-03-04 06:16:36,207 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 06:16:36,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 124 states [2022-03-04 06:16:36,211 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 06:16:36,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 124 interpolants. [2022-03-04 06:16:36,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1430, Invalid=13822, Unknown=0, NotChecked=0, Total=15252 [2022-03-04 06:16:36,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:16:36,218 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 06:16:36,219 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) [2022-03-04 06:16:36,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 06:16:36,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:16:51,271 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1985 transitions and produced 1462 states. [2022-03-04 06:16:51,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 06:16:51,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 244 states. [2022-03-04 06:16:51,303 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-03-04 06:16:51,472 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 [2022-03-04 06:16:51,472 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-04 06:16:51,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 06:16:51,473 INFO L85 PathProgramCache]: Analyzing trace with hash 48188039, now seen corresponding path program 3 times [2022-03-04 06:16:51,473 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 06:16:51,473 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389042805] [2022-03-04 06:16:51,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:16:51,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 06:16:51,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:16:52,695 INFO L134 CoverageAnalysis]: Checked inductivity of 6164 backedges. 2994 proven. 1162 refuted. 0 times theorem prover too weak. 2008 trivial. 0 not checked. [2022-03-04 06:16:52,696 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 06:16:52,696 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389042805] [2022-03-04 06:16:52,696 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389042805] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 06:16:52,696 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1034409936] [2022-03-04 06:16:52,696 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-04 06:16:52,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:16:52,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:16:52,700 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 06:16:52,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-04 06:16:52,778 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-03-04 06:16:52,778 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 06:16:52,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 12 conjunts are in the unsatisfiable core [2022-03-04 06:16:52,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 06:16:53,439 INFO L134 CoverageAnalysis]: Checked inductivity of 6164 backedges. 913 proven. 5 refuted. 0 times theorem prover too weak. 5246 trivial. 0 not checked. [2022-03-04 06:16:53,439 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 06:16:53,929 INFO L134 CoverageAnalysis]: Checked inductivity of 6164 backedges. 913 proven. 5 refuted. 0 times theorem prover too weak. 5246 trivial. 0 not checked. [2022-03-04 06:16:53,929 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1034409936] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 06:16:53,929 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 06:16:53,930 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [59, 8, 8] total 68 [2022-03-04 06:16:53,930 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823456222] [2022-03-04 06:16:53,930 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 06:16:53,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2022-03-04 06:16:53,931 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 06:16:53,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2022-03-04 06:16:53,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1407, Invalid=3149, Unknown=0, NotChecked=0, Total=4556 [2022-03-04 06:16:53,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:16:53,933 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 06:16:53,933 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) [2022-03-04 06:16:53,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 06:16:53,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 244 states. [2022-03-04 06:16:53,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:16:57,782 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2981 transitions and produced 2004 states. [2022-03-04 06:16:57,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 06:16:57,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 286 states. [2022-03-04 06:16:57,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-03-04 06:16:57,803 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-04 06:16:58,000 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 [2022-03-04 06:16:58,001 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-04 06:16:58,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 06:16:58,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1218238245, now seen corresponding path program 4 times [2022-03-04 06:16:58,002 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 06:16:58,002 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230814503] [2022-03-04 06:16:58,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:16:58,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 06:16:58,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:17:08,295 INFO L134 CoverageAnalysis]: Checked inductivity of 15745 backedges. 6700 proven. 7539 refuted. 0 times theorem prover too weak. 1506 trivial. 0 not checked. [2022-03-04 06:17:08,295 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 06:17:08,295 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230814503] [2022-03-04 06:17:08,296 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230814503] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 06:17:08,299 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [718512305] [2022-03-04 06:17:08,311 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-04 06:17:08,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:17:08,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:17:08,318 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 06:17:08,320 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-04 06:17:08,612 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-04 06:17:08,612 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 06:17:08,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 1371 conjuncts, 124 conjunts are in the unsatisfiable core [2022-03-04 06:17:08,653 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 06:17:21,693 INFO L134 CoverageAnalysis]: Checked inductivity of 15745 backedges. 4428 proven. 9679 refuted. 0 times theorem prover too weak. 1638 trivial. 0 not checked. [2022-03-04 06:17:21,693 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 06:17:26,383 INFO L134 CoverageAnalysis]: Checked inductivity of 15745 backedges. 6829 proven. 6650 refuted. 0 times theorem prover too weak. 2266 trivial. 0 not checked. [2022-03-04 06:17:26,383 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [718512305] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 06:17:26,384 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 06:17:26,384 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [162, 123, 39] total 322 [2022-03-04 06:17:26,384 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627964919] [2022-03-04 06:17:26,384 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 06:17:26,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 323 states [2022-03-04 06:17:26,385 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 06:17:26,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 323 interpolants. [2022-03-04 06:17:26,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7223, Invalid=96783, Unknown=0, NotChecked=0, Total=104006 [2022-03-04 06:17:26,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:17:26,399 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 06:17:26,400 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) [2022-03-04 06:17:26,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 06:17:26,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 286 states. [2022-03-04 06:17:26,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2022-03-04 06:17:26,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:18:19,541 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3526 transitions and produced 2568 states. [2022-03-04 06:18:19,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 06:18:19,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 286 states. [2022-03-04 06:18:19,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-03-04 06:18:19,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 511 states. [2022-03-04 06:18:19,563 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-04 06:18:19,760 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 [2022-03-04 06:18:19,762 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-04 06:18:19,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 06:18:19,762 INFO L85 PathProgramCache]: Analyzing trace with hash 725406080, now seen corresponding path program 5 times [2022-03-04 06:18:19,763 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 06:18:19,763 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402629008] [2022-03-04 06:18:19,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:18:19,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 06:18:19,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:18:26,582 INFO L134 CoverageAnalysis]: Checked inductivity of 18668 backedges. 7827 proven. 5366 refuted. 0 times theorem prover too weak. 5475 trivial. 0 not checked. [2022-03-04 06:18:26,582 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 06:18:26,582 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402629008] [2022-03-04 06:18:26,582 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402629008] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 06:18:26,583 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1682239474] [2022-03-04 06:18:26,583 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-04 06:18:26,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:18:26,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:18:26,584 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 06:18:26,585 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-04 06:18:27,617 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 84 check-sat command(s) [2022-03-04 06:18:27,617 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 06:18:27,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 1451 conjuncts, 147 conjunts are in the unsatisfiable core [2022-03-04 06:18:27,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 06:18:39,061 INFO L134 CoverageAnalysis]: Checked inductivity of 18668 backedges. 9551 proven. 7145 refuted. 0 times theorem prover too weak. 1972 trivial. 0 not checked. [2022-03-04 06:18:39,061 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 06:18:46,866 INFO L134 CoverageAnalysis]: Checked inductivity of 18668 backedges. 9551 proven. 7145 refuted. 0 times theorem prover too weak. 1972 trivial. 0 not checked. [2022-03-04 06:18:46,867 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1682239474] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 06:18:46,867 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 06:18:46,867 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [152, 146, 85] total 381 [2022-03-04 06:18:46,867 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240044392] [2022-03-04 06:18:46,867 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 06:18:46,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 382 states [2022-03-04 06:18:46,868 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 06:18:46,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 382 interpolants. [2022-03-04 06:18:46,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24153, Invalid=121389, Unknown=0, NotChecked=0, Total=145542 [2022-03-04 06:18:46,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:18:46,896 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 06:18:46,909 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) [2022-03-04 06:18:46,909 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 06:18:46,909 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 286 states. [2022-03-04 06:18:46,909 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2022-03-04 06:18:46,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 511 states. [2022-03-04 06:18:46,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:19:38,505 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 5034 transitions and produced 3222 states. [2022-03-04 06:19:38,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 06:19:38,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 296 states. [2022-03-04 06:19:38,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-03-04 06:19:38,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 643 states. [2022-03-04 06:19:38,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 549 states. [2022-03-04 06:19:38,528 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-04 06:19:38,725 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 [2022-03-04 06:19:38,726 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-04 06:19:38,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 06:19:38,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1848080875, now seen corresponding path program 6 times [2022-03-04 06:19:38,726 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 06:19:38,726 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853541993] [2022-03-04 06:19:38,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:19:38,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 06:19:39,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:20:03,871 INFO L134 CoverageAnalysis]: Checked inductivity of 44022 backedges. 18795 proven. 19255 refuted. 0 times theorem prover too weak. 5972 trivial. 0 not checked. [2022-03-04 06:20:03,873 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 06:20:03,873 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853541993] [2022-03-04 06:20:03,875 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853541993] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 06:20:03,879 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1188028817] [2022-03-04 06:20:03,879 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-04 06:20:03,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:20:03,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:20:03,880 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) [2022-03-04 06:20:03,887 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-04 06:20:04,624 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 69 check-sat command(s) [2022-03-04 06:20:04,624 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 06:20:04,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 1118 conjuncts, 20 conjunts are in the unsatisfiable core [2022-03-04 06:20:04,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 06:20:06,628 INFO L134 CoverageAnalysis]: Checked inductivity of 44022 backedges. 11529 proven. 1044 refuted. 0 times theorem prover too weak. 31449 trivial. 0 not checked. [2022-03-04 06:20:06,629 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 06:20:07,543 INFO L134 CoverageAnalysis]: Checked inductivity of 44022 backedges. 11529 proven. 1044 refuted. 0 times theorem prover too weak. 31449 trivial. 0 not checked. [2022-03-04 06:20:07,544 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1188028817] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 06:20:07,544 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 06:20:07,544 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [296, 10, 10] total 305 [2022-03-04 06:20:07,544 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287876416] [2022-03-04 06:20:07,544 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 06:20:07,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 305 states [2022-03-04 06:20:07,546 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 06:20:07,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 305 interpolants. [2022-03-04 06:20:07,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17346, Invalid=75374, Unknown=0, NotChecked=0, Total=92720 [2022-03-04 06:20:07,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:20:07,556 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 06:20:07,557 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) [2022-03-04 06:20:07,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 06:20:07,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 296 states. [2022-03-04 06:20:07,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2022-03-04 06:20:07,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 643 states. [2022-03-04 06:20:07,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 549 states. [2022-03-04 06:20:07,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:20:44,168 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 5405 transitions and produced 3503 states. [2022-03-04 06:20:44,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 06:20:44,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 296 states. [2022-03-04 06:20:44,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-03-04 06:20:44,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 718 states. [2022-03-04 06:20:44,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 549 states. [2022-03-04 06:20:44,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 532 states. [2022-03-04 06:20:44,195 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-03-04 06:20:44,371 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 [2022-03-04 06:20:44,372 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-04 06:20:44,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 06:20:44,373 INFO L85 PathProgramCache]: Analyzing trace with hash 423123931, now seen corresponding path program 7 times [2022-03-04 06:20:44,373 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 06:20:44,373 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173968722] [2022-03-04 06:20:44,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:20:44,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 06:20:44,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:21:21,235 INFO L134 CoverageAnalysis]: Checked inductivity of 53051 backedges. 24738 proven. 22346 refuted. 0 times theorem prover too weak. 5967 trivial. 0 not checked. [2022-03-04 06:21:21,236 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 06:21:21,236 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173968722] [2022-03-04 06:21:21,236 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173968722] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 06:21:21,236 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [181555379] [2022-03-04 06:21:21,236 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-04 06:21:21,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:21:21,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:21:21,238 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) [2022-03-04 06:21:21,239 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-04 06:21:21,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:21:21,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 2307 conjuncts, 232 conjunts are in the unsatisfiable core [2022-03-04 06:21:21,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 06:21:58,759 INFO L134 CoverageAnalysis]: Checked inductivity of 53051 backedges. 25007 proven. 24103 refuted. 0 times theorem prover too weak. 3941 trivial. 0 not checked. [2022-03-04 06:21:58,760 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 06:22:20,015 INFO L134 CoverageAnalysis]: Checked inductivity of 53051 backedges. 31493 proven. 16984 refuted. 0 times theorem prover too weak. 4574 trivial. 0 not checked. [2022-03-04 06:22:20,015 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [181555379] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 06:22:20,016 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 06:22:20,016 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [355, 231, 113] total 697 [2022-03-04 06:22:20,016 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370236066] [2022-03-04 06:22:20,016 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 06:22:20,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 698 states [2022-03-04 06:22:20,019 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 06:22:20,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 698 interpolants. [2022-03-04 06:22:20,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61304, Invalid=425202, Unknown=0, NotChecked=0, Total=486506 [2022-03-04 06:22:20,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:22:20,054 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 06:22:20,055 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) [2022-03-04 06:22:20,055 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 06:22:20,055 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 296 states. [2022-03-04 06:22:20,055 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2022-03-04 06:22:20,055 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 718 states. [2022-03-04 06:22:20,055 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 549 states. [2022-03-04 06:22:20,055 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 532 states. [2022-03-04 06:22:20,055 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:27:58,192 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 8773 transitions and produced 6398 states. [2022-03-04 06:27:58,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 06:27:58,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 296 states. [2022-03-04 06:27:58,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-03-04 06:27:58,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 718 states. [2022-03-04 06:27:58,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 838 states. [2022-03-04 06:27:58,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 570 states. [2022-03-04 06:27:58,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 1181 states. [2022-03-04 06:27:58,212 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-03-04 06:27:58,407 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 [2022-03-04 06:27:58,407 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-04 06:27:58,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 06:27:58,408 INFO L85 PathProgramCache]: Analyzing trace with hash 2128591337, now seen corresponding path program 8 times [2022-03-04 06:27:58,408 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 06:27:58,408 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307904632] [2022-03-04 06:27:58,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:27:58,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 06:27:59,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:28:58,121 INFO L134 CoverageAnalysis]: Checked inductivity of 134204 backedges. 56837 proven. 49511 refuted. 0 times theorem prover too weak. 27856 trivial. 0 not checked. [2022-03-04 06:28:58,121 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 06:28:58,121 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307904632] [2022-03-04 06:28:58,121 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307904632] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 06:28:58,121 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1627391935] [2022-03-04 06:28:58,121 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-04 06:28:58,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:28:58,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:28:58,123 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 06:28:58,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-04 06:28:58,579 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-04 06:28:58,579 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 06:28:58,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 3606 conjuncts, 278 conjunts are in the unsatisfiable core [2022-03-04 06:28:58,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 06:29:56,252 INFO L134 CoverageAnalysis]: Checked inductivity of 134204 backedges. 71345 proven. 28085 refuted. 0 times theorem prover too weak. 34774 trivial. 0 not checked. [2022-03-04 06:29:56,253 INFO L328 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2022-03-04 06:30:38,204 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (4 of 5 remaining) [2022-03-04 06:30:38,231 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-03-04 06:30:38,248 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-04 06:30:38,248 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-04 06:30:38,248 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-04 06:30:38,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-03-04 06:30:38,405 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 1453 with TraceHistMax 242,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 914 known predicates. [2022-03-04 06:30:38,407 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-03-04 06:30:38,407 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-03-04 06:30:38,407 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-03-04 06:30:38,407 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-03-04 06:30:38,411 INFO L732 BasicCegarLoop]: Path program histogram: [8] [2022-03-04 06:30:38,413 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-04 06:30:38,413 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-04 06:30:38,414 INFO L202 PluginConnector]: Adding new model buffer-series.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 06:30:38 BasicIcfg [2022-03-04 06:30:38,414 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-04 06:30:38,415 INFO L158 Benchmark]: Toolchain (without parser) took 849791.92ms. Allocated memory was 180.4MB in the beginning and 6.3GB in the end (delta: 6.2GB). Free memory was 141.2MB in the beginning and 4.4GB in the end (delta: -4.3GB). Peak memory consumption was 1.9GB. Max. memory is 8.0GB. [2022-03-04 06:30:38,415 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.14ms. Allocated memory is still 180.4MB. Free memory is still 142.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-04 06:30:38,415 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.50ms. Allocated memory is still 180.4MB. Free memory was 141.1MB in the beginning and 139.7MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-04 06:30:38,415 INFO L158 Benchmark]: Boogie Preprocessor took 17.64ms. Allocated memory is still 180.4MB. Free memory was 139.6MB in the beginning and 138.6MB in the end (delta: 948.9kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-04 06:30:38,415 INFO L158 Benchmark]: RCFGBuilder took 209.70ms. Allocated memory is still 180.4MB. Free memory was 138.5MB in the beginning and 155.6MB in the end (delta: -17.1MB). Peak memory consumption was 15.4MB. Max. memory is 8.0GB. [2022-03-04 06:30:38,416 INFO L158 Benchmark]: TraceAbstraction took 849505.99ms. Allocated memory was 180.4MB in the beginning and 6.3GB in the end (delta: 6.2GB). Free memory was 155.0MB in the beginning and 4.4GB in the end (delta: -4.3GB). Peak memory consumption was 1.9GB. Max. memory is 8.0GB. [2022-03-04 06:30:38,417 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.14ms. Allocated memory is still 180.4MB. Free memory is still 142.4MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 54.50ms. Allocated memory is still 180.4MB. Free memory was 141.1MB in the beginning and 139.7MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 17.64ms. Allocated memory is still 180.4MB. Free memory was 139.6MB in the beginning and 138.6MB in the end (delta: 948.9kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 209.70ms. Allocated memory is still 180.4MB. Free memory was 138.5MB in the beginning and 155.6MB in the end (delta: -17.1MB). Peak memory consumption was 15.4MB. Max. memory is 8.0GB. * TraceAbstraction took 849505.99ms. Allocated memory was 180.4MB in the beginning and 6.3GB in the end (delta: 6.2GB). Free memory was 155.0MB in the beginning and 4.4GB in the end (delta: -4.3GB). Peak memory consumption was 1.9GB. 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 1453 with TraceHistMax 242,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 914 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 1453 with TraceHistMax 242,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 914 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 1453 with TraceHistMax 242,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 914 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 1453 with TraceHistMax 242,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 914 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 1453 with TraceHistMax 242,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 914 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: 849.4s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 498.8s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 3678, 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, 4.3s SatisfiabilityAnalysisTime, 184.0s 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